Fixed frame-shaped pressing bar for large-span steel beam three-type plate ballastless track

Abstract

The utility model discloses a large-span steel beam three-type plate ballastless track fixed type frame-shaped pressing lever which comprises two side formworks and a frame-shaped pressing seat at the top of a track plate, a groove is formed in one side of the frame-shaped pressing seat, a lead screw is arranged in the groove, the top of the lead screw is in threaded connection with a hexagon nut, the hexagon nut is tightly attached to the top of the frame-shaped pressing seat, and the top of the frame-shaped pressing seat is in threaded connection with the lead screw. A bottom fixing assembly used for fixing the bottom of the lead screw is arranged at the bottom of the frame-shaped pressing base and comprises a fixing sleeve arranged at the bottom of the lead screw. The threaded rod is movably connected to the interior of the fixing sleeve, the outer end of the threaded rod is in contact connection with the outer side of the fixing sleeve, the threaded rod penetrates through the fixing sleeve to be screwed into the pre-embedded thread sleeve, one end of the threaded rod is tightly attached to the outer side of the fixing sleeve, the fixing sleeve is pressed on the pre-embedded thread sleeve, and therefore the bottom of the lead screw is fixed; the threaded rod can be fixed without extending out of the long position of the lead screw, pedestrians and vehicles cannot be hindered, and the situation that the lead screw and the pressing lever incline due to the fact that the threaded rod is collided easily is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of track construction, in particular to a large-span steel beam three-type plate ballastless track fixed frame type compression lever. BACKGROUND

[0002] The compression lever mainly plays a role of compression and fixation in the ballastless track, which ensures the correct position and height of the track seat and the formwork during the installation process, and prevents the displacement or deformation of the formwork during the concrete pouring and hardening process. Correct compression lever fixation is of great significance to ensure the geometric size of the track, improve the durability of the track and reduce maintenance costs.

[0003] However, in the process of implementing the related technical solutions, at least the following technical problems are found: when the frame type compression lever is used to compress and fix the track seat and the formwork, the rotation of the nut on the lead screw is generally used to limit the frame type compression lever, and the lead screw is generally fixed on the base plate by a steel bar. The way of fixing the steel bar will make the steel bar protrude a long distance on the outside, and pedestrians or vehicles on the road will easily touch the elongated steel bar, causing the steel bar to drive the lead screw and the compression lever to tilt and move, affecting the track plate precision. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a large-span steel beam three-type plate ballastless track fixed frame type compression lever, which solves the problem of long protrusion of the steel bar in the prior art, which easily causes the track plate to tilt, and achieves the effect of fixing the lead screw by rotating the threaded rod into the embedded screw sleeve.

[0005] The present application provides a large-span steel beam three-type plate ballastless track fixed frame type compression lever, which includes two side formworks and a frame type compression seat on the top of the track plate. A groove is formed on one side of the frame type compression seat, and a lead screw is arranged inside the groove. A hexagonal nut is threadedly connected to the top of the lead screw, and the hexagonal nut is in close contact with the top of the frame type compression seat. A bottom fixing assembly is arranged at the bottom of the frame type compression seat for fixing the bottom of the lead screw. The bottom fixing assembly includes a fixing sleeve arranged at the bottom of the lead screw, and a threaded rod movably connected to the inside of the fixing sleeve, and the outer end of the threaded rod is in contact with the outside of the fixing sleeve.

[0006] Further, the bottom of each of the two side formworks is provided with a base plate, and a pre-embedded screw sleeve is pre-embedded in the inside of one side of the base plate, and the pre-embedded screw sleeve is in the same vertical plane as the frame type compression seat. The fixing sleeve is arranged on the front surface of the pre-embedded screw sleeve, and the fixing sleeve is concentric with the pre-embedded screw sleeve. The threaded rod is threadedly connected with the pre-embedded screw sleeve.

[0007] Further, the top of the frame-shaped pressing seat is provided with a top fixing assembly for fixing the hexagonal nut, the top fixing assembly comprises: a fixing seat arranged on one side of the lead screw, and the fixing seat is fixedly arranged on the side of the top of the frame-shaped pressing seat; a plurality of insertion rods connected to the middle part of the fixing seat; a fixing block fixedly arranged on the end of the insertion rod away from the hexagonal nut.

[0008] Further, the end of the plurality of insertion rods close to the hexagonal nut is fixedly provided with a contact block, and the contact block is in contact with the outer side of the hexagonal nut.

[0009] Further, the top of the fixing seat is threadedly connected with a plurality of adjusting bolts, and the bottom of the adjusting bolt is in contact with the insertion rod.

[0010] The technical scheme provided in the application has at least the following technical effects or advantages:

[0011] By screwing the threaded rod into the embedded screw sleeve through the fixing sleeve, one end of the threaded rod is tightly attached to the outer side of the fixing sleeve, the fixing sleeve is pressed on the embedded screw sleeve, thereby fixing the bottom of the lead screw. The threaded rod does not need to be fixed in a position extending out of the lead screw for a long distance, so as not to hinder pedestrians and vehicles, and is not easy to be collided to cause the lead screw and the pressing rod to be inclined. The contact block is driven by the plurality of insertion rods to contact and press the outer side of the hexagonal nut, so as to fix the hexagonal bolt, thereby preventing the lead screw from loosening. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the frame-shaped pressing rod in the embodiment of the application.

[0013] Figure 2 It is a schematic diagram of the structure of the lead screw in the embodiment of the application.

[0014] Figure 3 It is a schematic diagram of the cross-sectional structure of the base plate in the embodiment of the application.

[0015] In the figure: 10, base plate; 20, side mold plate; 30, track plate; 40, frame-shaped pressing seat; 41, groove; 50, lead screw; 60, hexagonal nut; 70, bottom fixing assembly; 80, top fixing assembly; 71, embedded screw sleeve; 72, fixing sleeve; 73, threaded rod; 81, fixing seat; 82, insertion rod; 83, fixing block; 84, contact block; 85, adjusting bolt. DETAILED DESCRIPTION

[0016] The embodiment of the application discloses a large-span steel beam three-type plate ballastless track fixed frame type compression lever, the fixed sleeve 72 at the bottom of the lead screw 50 is compressed by rotating the threaded rod 73 into the embedded sleeve 71, the lead screw 50 is fixed, the hexagonal nut 60 is fixed at multiple positions by cooperating with the plug rod 82 and the contact block 84, so that the lead screw 50 can stably limit the frame type compression seat 40, the threaded rod 73 close to the fixed sleeve 72 cannot extend outward for a long distance, preventing the lead screw 50 and the frame type compression seat 40 from being inclined due to collision.

[0017] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and specific embodiments.

[0018] Please refer to Figure 1 The embodiment provides a large-span steel beam three-type plate ballastless track fixed frame type compression lever, which comprises two side formworks 20 and a frame type compression seat 40 at the top of a track plate 30, a recess 41 is formed in one side of the frame type compression seat 40, a lead screw 50 is arranged in the recess 41, a hexagonal nut 60 is threadedly connected to the top of the lead screw 50, the hexagonal nut 60 is close to the top of the frame type compression seat 40, a bottom fixing assembly 70 for fixing the bottom of the lead screw 50 is arranged at the bottom of the frame type compression seat 40, bolts are arranged at the side of the frame type compression seat 40, the bolts are in contact connection with the side of the side formwork 20, the frame type compression seat 40 is pressed on the top of the track plate 30, and the bolts on the side are limited on the outside of the side formwork 20, so that the side formwork 20 and the track plate 30 can be limited and fixed by the frame type compression seat 40, thereby preventing the relative position of the side formwork 20 and the track plate 30 from changing, preventing the side formwork 20 and the track plate 30 from moving during concrete pouring, and thereby affecting the accuracy of pouring, the rotation of the hexagonal nut 60 threadedly connected to the top of the lead screw 50 enables the hexagonal nut 60 to be lowered to be in contact with the top of the frame type compression seat 40, so that the hexagonal nut 60 can fix the top of the lead screw 50, and the movement of the frame type compression seat 40 drives the movement of the side formwork 20 and the track plate 30.

[0019] Please refer to Figure 1 、 Figure 2 and Figure 3The bottom of the frame-shaped pressing seat 40 is provided with a bottom fixing assembly 70 for fixing the bottom of the lead screw 50, and the bottom of the two side mold plates 20 is provided with a base plate 10. The bottom fixing assembly 70 comprises a pre-buried sleeve 71, a fixing sleeve 72 and a threaded rod 73. The pre-buried sleeve 71 is pre-buried in the inside of one side of the base plate 10 and is in the same vertical plane as the frame-shaped pressing seat 40. The fixing sleeve 72 is arranged at the bottom of the lead screw 50 and is arranged on the front side of the pre-buried sleeve 71 and is concentric with the pre-buried sleeve 71. The fixing sleeve 72 at the bottom of the lead screw 50 is moved to the concentric position of the pre-buried sleeve 71, and then the hexagonal nut 60 is rotated to fix the top of the lead screw 50. The threaded rod 73 is movably connected to the inside of the fixing sleeve 72 and is threadedly connected with the pre-buried sleeve 71. The outer end of the threaded rod 73 is in contact with the outside of the fixing sleeve 72. By rotating the threaded rod 73 into the pre-buried sleeve 71 which is threadedly connected with the threaded rod 73, the outer end of the threaded rod 73 is moved to the position of the fixing sleeve 72, so that the outer end of the threaded rod 73 and the pre-buried sleeve 71 clamp the fixing sleeve 72 to fix the bottom of the lead screw 50. In combination with the fixing of the top of the lead screw 50 by the hexagonal nut 60, the position of the lead screw 50 is fixed.

[0020] Please refer to Figure 1 、 Figure 2 and Figure 3 The top of the frame-shaped pressing seat 40 is provided with a top fixing assembly 80 for fixing the hexagonal nut 60. The top fixing assembly 80 comprises a fixing seat 81, a plug rod 82, a fixing block 83, a contact block 84 and an adjusting bolt 85. The fixing seat 81 is arranged on one side of the lead screw 50 and is fixedly arranged on the side of the top of the frame-shaped pressing seat 40. A plurality of plug rods 82 are penetratingly connected to the middle of the fixing seat 81. The fixing block 83 is fixedly arranged at the end of the plug rod 82 away from the hexagonal nut 60. The contact block 84 is arranged at the end of the plug rod 82 close to the hexagonal nut 60 and is in contact with the outside of the hexagonal nut 60. A plurality of adjusting bolts 85 are threadedly connected to the top of the fixing seat 81. The bottom of the adjusting bolt 85 is in contact with the plug rod 82. Pushing the fixing block 83 at one end of the plug rod 82 makes the plug rod 82 penetrate into the fixing seat 81 and move towards the hexagonal nut 60, so that the contact block 84 at one end of the plug rod 82 can be in contact with a plurality of positions on the outside of the hexagonal nut 60. Rotating the adjusting bolt 85 which is threadedly connected with the fixing seat 81 makes the adjusting bolt 85 move to the position in contact with the plug rod 82 to fix the position of the plug rod 82, so that the position of the contact block 84 at one end of the plug rod 82 is fixed, thereby preventing the hexagonal nut 60 on the lead screw 50 from loosening, improving the stability of the lead screw 50, preventing the frame-shaped pressing seat 40 from tilting, and making the side mold plate 20 and the track plate 30 more stable.

[0021] The functional principle of the present application can be described as follows:

[0022] In use, the frame-shaped pressing base 40 is placed on the top of the side formwork 20 and the track plate 30, and is in the same vertical plane as the embedded screw sleeve 71 embedded in the base plate 10. The bolt on the side of the frame-shaped pressing base 40 is rotated so that the bolt threaded with it can be rotated to the side formwork 20, so that the bolt is pressed against the side formwork 20, so that the frame-shaped pressing base 40 can press the track plate 30 and fix the side of the side formwork 20. The lead screw 50 is placed in the groove 41 on the side of the frame-shaped pressing base 40, so that the fixing sleeve 72 at the bottom of the lead screw 50 is lowered to the position concentric with the front of the embedded screw sleeve 71. The threaded rod 73 is inserted into the embedded screw sleeve 71 from the fixing sleeve 72, and the threaded rod 73 is rotated so that it is screwed into the embedded screw sleeve 71 threaded with it, so that the fixing sleeve 72 is pressed tightly on the outer end of the threaded rod 73 to one side of the embedded screw sleeve 71, so that the fixing sleeve 72 is fixed between the outer end of the threaded rod 73 and the embedded screw sleeve 71, so that the fixing sleeve 72 and the top lead screw 50 are fixed. The hexagonal nut 60 is screwed onto the lead screw 50, so that the hexagonal nut 60 is rotated and lowered to the position tightly attached to the top of the frame-shaped pressing base 40, so that the top of the lead screw 50 is fixed. The fixed block 83 at one end of the insertion rod 82 is pushed, so that the insertion rod 82 is inserted into the fixed seat 81 and moves towards the hexagonal nut 60, so that the contact block 84 at one end of the insertion rod 82 contacts the hexagonal nut 60. Multiple contact blocks 84 contact multiple positions on the outer side of the hexagonal nut 60. The multiple adjusting bolts 85 on the top of the fixed seat 81 are rotated so that the adjusting bolts 85 are screwed into the fixed seat 81 and contact the corresponding insertion rod 82, so that the position of the insertion rod 82 in the fixed seat 81 is fixed, so that multiple contact blocks 84 can fix the hexagonal nut 60 at multiple positions, preventing the hexagonal nut 60 from loosening, thereby affecting the stability of the lead screw 50. The threaded rod 73 tightly attached to the outer side of the fixing sleeve 72 will not extend outward for a long distance, preventing the threaded rod 73 from frequently colliding with pedestrians and vehicles on the outer side, improving the stability of the lead screw 50, so that the frame-shaped pressing base 40 limiting the side formwork 20 and the track plate 30 can be more stable, preventing the side formwork 20 and the track plate 30 from tilting and moving due to collision.

[0023] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

[0024] The above is only a preferred specific implementation of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent substitutions or changes to the technical solutions and concepts of the present application within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A large-span steel beam three-plate ballastless track fixed frame type pressing lever, comprising two side formworks (20) and a frame type pressing base (40) at the top of a track slab (30), characterized in that, The frame pressing base (40) is provided with a groove (41) on one side, the inside of the groove (41) is provided with a lead screw (50), the top of the lead screw (50) is threadedly connected with a hexagon nut (60), the hexagon nut (60) is in close contact with the top of the frame pressing base (40), the bottom of the frame pressing base (40) is provided with a bottom fixing assembly (70) for fixing the bottom of the lead screw (50), the bottom fixing assembly (70) comprises: A fixing sleeve (72) is arranged at the bottom of the lead screw (50); A threaded rod (73) is movably connected to the inside of the fixing sleeve (72), and the outer end of the threaded rod (73) is in contact with the outside of the fixing sleeve (72).

2. The large-span steel beam three-plate ballastless track fixed frame-type compression beam according to claim 1, characterized in that, The bottom of the two side forms (20) is provided with a base plate (10), the inside of one side of the base plate (10) is pre-buried with a pre-buried sleeve (71), and the pre-buried sleeve (71) is in the same vertical plane as the frame pressing base (40), the fixing sleeve (72) is arranged on the front surface of the pre-buried sleeve (71), and the fixing sleeve (72) is concentric with the pre-buried sleeve (71), and the threaded rod (73) is threadedly connected with the pre-buried sleeve (71).

3. The large-span steel beam three-plate ballastless track fixed frame-type compression beam according to claim 1, characterized in that, The top of the frame pressing base (40) is provided with a top fixing assembly (80) for fixing the hexagon nut (60), the top fixing assembly (80) comprises: A fixing seat (81) is arranged on one side of the lead screw (50), and the fixing seat (81) is fixedly arranged on the side of the top of the frame pressing base (40); A plurality of insertion rods (82) are movably connected to the middle of the fixing seat (81); A fixing block (83) is fixedly arranged on the end of the insertion rod (82) away from the hexagon nut (60).

4. The large-span steel beam three-plate ballastless track fixed frame-type compression beam according to claim 3, characterized in that, The end of the plurality of insertion rods (82) close to the hexagon nut (60) is fixedly provided with a contact block (84), and the contact block (84) is in contact with the outside of the hexagon nut (60).

5. The large-span steel beam three-plate ballastless track fixed frame-type compression beam according to claim 3, characterized in that, The top of the fixing seat (81) is threadedly connected with a plurality of adjusting bolts (85), and the bottom of the adjusting bolt (85) is in contact with the insertion rod (82).

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