A positioning device for a concave template of a ballastless track

Abstract

The utility model discloses a recess template positioning device of ballastless track, including stand, crosspiece, sliding frame, angle steel, threaded column and recess template, the lower layer frame structure of stand and crosspiece can roll on the mould, the upper layer frame structure of sliding frame and crosspiece can slide on the crosspiece and can be positioned, the upper layer frame structure of sliding frame and crosspiece can slide on the crosspiece and can be positioned, recess template is fixed on the crosspiece through four threaded columns and is below the upper layer frame structure, so recess template can be sent to the specified position fast, makes recess template accurate positioning, thereby makes recess template embed on the reinforcement cage of ballastless track, and due to the flexibility of adjustment, make the utility model discloses can adapt to different construction environment, improve the positioning installation efficiency of recess template. The utility model discloses can also save construction length, reduce the input of manpower and material resources, reduce construction cost.

Description

Technical Field

[0001] This utility model relates to the field of track construction tools, specifically to a groove template positioning device for ballastless track. Background Technology

[0002] Ballastless track refers to a track structure that uses a monolithic foundation of concrete, asphalt mixture, etc., instead of loose gravel track. Also known as ballastless track, it represents the world's most advanced track technology. During construction, molds are first erected, and then concrete is poured to form a grooved base. This grooved structure not only interlocks with the track slab to restrict its lateral movement but also allows the concrete to expand and contract freely due to temperature changes, preventing cracking caused by constraint stress. The grooves are formed using groove molds, which require precise positioning. Current positioning devices are cumbersome, time-consuming, and labor-intensive, and have poor versatility; they are essentially unusable after the current construction phase, resulting in material waste.

[0003] Therefore, to address the above shortcomings, it is necessary to develop a groove template positioning device for ballastless tracks. Summary of the Invention

[0004] The purpose of this invention is to provide a groove template positioning device for ballastless tracks to solve the problem of poor versatility of current positioning devices.

[0005] The purpose of this utility model is achieved as follows: A groove template positioning device for ballastless track, characterized in that it includes uprights, horizontal frames, slides, crossbars, threaded columns, and groove templates. Two uprights and two horizontal frames placed opposite each other form a large rectangular lower frame structure. The bottoms of the two vertically placed uprights are slidably connected to the molds on both sides of the ballastless track to be poured. Two horizontal frames are fixedly connected between the two uprights. Two slides and two angle steels placed opposite each other form a small square upper frame structure. A slide parallel to the horizontal frame is slidably connected to the top of each horizontal frame. Two horizontal "L"-shaped crossbars parallel to the uprights are fixedly connected between the two slides. An outer edge is provided on the outer wall of each threaded column. The threaded section has four threaded columns fixedly connected to the two horizontal bars at four corners. The top of each threaded column passes through the horizontal bar hole on the front and back sides of the horizontal bar plate. The top of each vertical threaded column passes through the horizontal bar hole on the horizontal bar plate from bottom to top and is fixed to the horizontal bar plate by the upper threaded column nut. The groove template is located directly below the lower frame structure. There are four template holes on the front and back convex edges of the groove template, which are spaced apart to allow the bottom of the threaded column to pass through. The bottom of each threaded column passes through the template hole on the convex edge of the groove template from top to bottom and is fixed to the convex edge of the groove template by the lower threaded column nut. This allows the groove template to be hoisted and embedded in the steel cage of the ballastless track.

[0006] As a further explanation of this utility model, preferably, the upright is a U-shaped frame welded from square steel, and an "L"-shaped wheel connecting bracket is fixedly installed at intervals at the bottom of each upright. A wheel with a T-shaped cross section is installed on each wheel connecting bracket. The top surface of the mold along its length is fixedly connected to a slide rail through a column bracket. The top of the slide rail is an arc surface. The wheel abuts against the top arc surface of the slide rail, and its outer edge abuts against the inner side surface of the slide rail.

[0007] As a further explanation of this utility model, preferably, two circular holes are provided at intervals on the front and rear sides of the middle of the lower crossbar at the bottom of the upright, allowing the top ends of the screw and the smooth rod to pass through respectively. The length directions of the screw and the smooth rod are vertical and parallel to each other. The outer side wall of the screw is provided with external threads, and the outer side wall of the smooth rod is smooth. The bottoms of the screw and the smooth rod are respectively fixedly connected to the top of the solid block-shaped locking plate at intervals. The bottom of the locking plate can contact or detach from the top of the slide rail.

[0008] As a further explanation of this utility model, preferably, after the top end of the screw passes upward through the lower horizontal bar round hole of the horizontal bar at the bottom of the upright, a lower horizontal bar nut is threadedly connected above and below the screw passing through the lower horizontal bar, and the two lower horizontal bar nuts together with the horizontal bar stabilize the height of the locking plate.

[0009] As a further explanation of this utility model, preferably, two detection holes are provided at intervals on the front and rear sides of the middle crossbar of the upright frame directly above the screw and the guide rod. The two detection holes and the two round holes are on the same vertical line, and the diameter of the detection holes is the same as the diameter of the screw and the diameter of the guide rod.

[0010] As a further explanation of this utility model, preferably, the carriage is a rod-shaped structure, and a planar horizontal platform is provided in the middle of the top of the carriage, on which a level can be placed to determine whether the crossbeam is horizontal.

[0011] As a further explanation of this utility model, preferably, two vertical clamping plates are fixedly connected at intervals at both ends of the slide, the distance between the two clamping plates is the same as the width of the cross frame and abuts against the front and rear sides of the cross frame, that is: the slide is clamped on the cross frame from top to bottom.

[0012] As a further explanation of this utility model, preferably, a locking rod screw hole is provided in the middle of the front clamping plate, penetrating the side wall of the clamping plate, and an external thread is provided on the outer side wall of the locking rod to cooperate with the internal thread in the locking rod screw hole. The locking rod is screwed into the locking rod screw hole of the outermost clamping plate from the outside to the inside, and the top of the locking rod abuts against the side wall of the cross frame to restrict the movement of the carriage.

[0013] Compared with the prior art, this utility model has the following advantages: This invention includes a vertical frame, a horizontal frame, a sliding frame, a crossbar, threaded columns, and a grooved template. The lower frame structure, composed of the vertical and horizontal frames, can roll on the mold. The upper frame structure, composed of the sliding frame and crossbar, can both slide on the horizontal frame and be positioned. The grooved template is fixed to the crossbar by four threaded columns and is located below the upper frame structure. This allows the grooved template to be quickly delivered to the designated position, ensuring accurate positioning and embedding into the steel cage of the ballastless track. Furthermore, due to its adjustability, this invention can adapt to different construction environments, improving the positioning and installation efficiency of the grooved template. This invention also saves construction time, reduces manpower and material input, and lowers construction costs. Attached Figure Description

[0014] Figure 1 This is an assembly rendering of the present invention; Figure 2 This is a diagram illustrating the effect of using this utility model; Figure 3 yes Figure 2 Enlarged view of region A in the middle; Figure 4 This is a schematic diagram of the cross-section of the carriage and crossbeam; Figure 5 This is a positioning state diagram of this utility model; In the diagram: 1. Upright frame; 10. Wheel connecting bracket; 11. Wheel; 12. Locking plate; 13. Screw; 14. Smooth rod; 15. Lower crossbar nut; 16. Inspection hole; 17. Lower crossbar; 18. Lower crossbar round hole; 19. Middle crossbar; 2. Horizontal frame; 3. Slide carriage; 31. Platform; 32. Clamping plate; 33. Locking rod; 34. Locking rod screw hole; 4. Crossbar; 41. Horizontal plate; 42. Horizontal rod round hole; 5. Threaded post; 51. Upper threaded post nut; 52. Lower threaded post nut; 6. Groove template; 61. Raised edge; 62. Template round hole; 7. Mold; 8. Slide rail; 9. Upright column bracket. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] A groove template positioning device for ballastless track includes a vertical frame 1, a horizontal frame 2, a slide 3, a crossbar 4, a threaded column 5, and a groove template 6. Two opposing vertical frames 1 and two opposing horizontal frames 2 together form a large rectangular lower frame structure. The bottoms of the two vertically placed vertical frames 1 are slidably connected to the molds 7 on both sides of the ballastless track to be poured. Two horizontally placed crossbars 2 are fixedly connected between the two vertical frames 1. Two opposing slides 3 and two opposing angle steels 4 together form a small square upper frame structure. A slide 3 parallel to the horizontal frame 2 is slidably connected to the top of each horizontal frame 2. Two horizontally placed "L"-shaped crossbars 4 parallel to the vertical frames 1 are fixedly connected between the two slides 3. Each threaded column 5 has an external thread on its outer wall. On each crossbar 4... The front and rear sides of the horizontal plate 41 are each provided with a horizontal bar round hole 42 through which the top of the threaded column 5 passes. The four threaded columns 5 are fixedly connected to the two horizontal bars 4 at the four corners of the quadrilateral. The top of each vertical threaded column 5 passes through the horizontal bar round hole 42 of the horizontal plate 41 of the horizontal bar 4 from bottom to top and is fixed to the horizontal plate 41 of the horizontal bar 4 by the upper threaded column nut 51. The groove template 6 is located directly below the lower frame structure. The front and rear sides of the groove template 6 are provided with four template round holes 62 through which the bottom of the threaded column 5 passes. The bottom of each threaded column 5 passes through the template round hole 62 on the convex edge 61 of the groove template 6 from top to bottom and is fixed to the convex edge 61 of the groove template 6 by the lower threaded column nut 52, so as to realize the hoisting of the groove template 6 and embed it into the steel cage of the ballastless track.

[0017] The support frame 1 is a U-shaped frame welded from square steel. An L-shaped wheel connecting bracket 10 is fixedly installed at the bottom of each support frame 1 at intervals. A T-shaped wheel 11 is installed on each wheel connecting bracket 10. The top surface of the mold 7 along its length is fixedly connected to a slide rail 8 through a column bracket 9. The top of the slide rail 8 is an arc surface. The wheel 11 abuts against the top arc surface of the slide rail 8 and its outer edge abuts against the inner side surface of the slide rail 8. With the above arrangement, the support frame 1 can slide smoothly along the length of the mold 7 and is not easy to detach.

[0018] Two lower crossbar round holes 18 are provided at intervals on the front and rear sides of the middle of the lower crossbar 17 at the bottom of the upright frame 1, through which the top ends of the screw 13 and the smooth rod 14 respectively pass. The length directions of the screw 13 and the smooth rod 14 are vertical and parallel to each other. The outer wall of the screw 13 is provided with external threads, and the outer wall of the smooth rod 14 is smooth. The bottoms of the screw 13 and the smooth rod 14 are fixedly connected to the top of the solid block-shaped locking plate 12 at intervals. The bottom of the locking plate 12 can contact or disengage from the top of the slide rail 8. After the top end of the screw 13 passes upward through the lower crossbar round hole 18 of the crossbar 17 at the bottom of the upright frame 1, the screw 13 passes through... Both the top and bottom of the lower crossbar 17 are threaded with lower crossbar nuts 15. Rotating the lower crossbar nuts 15 causes the screw 13 and locking plate 12 to move downwards. The bottom of the locking plate 12 can abut against the top of the slide rail 8 to slightly lift the wheel 11, preventing the upright frame 1 from sliding on its own and thus limiting its movement. At the same time, two lower crossbar nuts 15 are provided to cooperate with the lower crossbar 17 of the upright frame 1, fixing the screw 13 in place and stabilizing the height of the locking plate 12. At this time, the bottom of the locking plate 12 moves upwards away from the top of the slide rail 8, so that the locking plate 12 does not restrict the movement of the upright frame 1 when it needs to move.

[0019] Two detection holes 16 are provided on the front and rear sides of the middle crossbar 19 of the upright frame 1 directly above the screw 13 and the smooth rod 14. The two detection holes 16 and the two round holes 18 are on the same vertical line, and the diameter of the detection holes 16 is the same as the diameter of the screw 13 and the smooth rod 14. Rotating the lower crossbar nut 15 can make the screw 13 and the smooth rod 14 insert upward into the detection holes 16 respectively. The smoothness of the screw 13 and the smooth rod 14 entering the detection holes 16 is used to determine whether the screw 13 and the smooth rod 14 are bent, and thus determine whether there is a problem with the positioning effect of the locking plate 12. If bending occurs, it needs to be replaced to avoid affecting the positioning effect.

[0020] The crossbeam 2 consists of two horizontal square steel bars that are parallel in length. The left and right ends of each crossbeam 2 are welded and fixed to the left and right uprights 1 by cutting angle steel.

[0021] The slide 3 is a rod-shaped structure. A flat water platform 31 is provided in the middle of the top of the slide 3. A level can be placed on the water platform 31 to determine whether the cross frame 2 is horizontal. Then, by rotating the four threaded columns 5, the groove template 6 below the slide 3 is ensured to be horizontal. Two vertical clamping plates 32 are fixedly connected at intervals at both ends of the slide 3. The distance between the two clamping plates 32 is the same as the width of the cross frame 2 and abuts against the front and rear sides of the cross frame 2. That is, the slide 3 is clamped on the cross frame 2 from top to bottom. Two clamping plates 32 are provided to stabilize the sliding direction of the carriage 3 and prevent the carriage 3 from shaking on the crossbeam 2. A locking rod screw hole 34 is provided in the middle of the front clamping plate 32, which penetrates the side wall of the clamping plate 32. An external thread is provided on the outer side wall of the locking rod 33, which matches the internal thread in the locking rod screw hole 34. The locking rod 33 is screwed into the locking rod screw hole 34 of the outermost clamping plate 32 from the outside to the inside, and the top of the locking rod 33 abuts against the side wall of the crossbeam 2 to restrict the movement of the carriage 3.

[0022] Working principle: A. During construction, measure the position and height of the groove template 6 on the base according to the design drawings; B. Then, using a measuring tape or cutting steel bars of equal length as a reference, mark the positions on the slide rail 8, crossbar 2 and threaded column 5 respectively; C. Then connect the bottom end of the threaded column 5 to the groove template 6 through the lower threaded column nut 52, and connect the top end of the threaded column 5 to the crossbar 4 through the upper threaded column nut 51. Rotate the upper threaded column nut 51 and the lower threaded column nut 52 to the marked position, and then install the slide 3 with the crossbar 4 onto the crossbar 2. D. Complete the height positioning of the groove template 6; E. Push the upright 1 to the marked position on the slide rail 8, rotate the lower crossbar nut 15 on the upright 1, so that the screw 13 drives the bottom locking plate 12 to move down until it abuts against the slide rail 8. The smooth rod 14 is used to stabilize the moving direction of the locking plate 12. When the locking plate 12 coincides with the marked position on the slide rail 8, the locking plate 12 can be used for marking and restricting the movement of the upright 1. At this time, the longitudinal positioning of the groove template 6 is completed. F. After the upright frame 1 and the horizontal frame 2 are positioned, push the slide 3 to move and make the left side of the water platform 31 on the slide 3 coincide with the marked position of the horizontal frame 2. A small liquid column level can be placed on the water platform 31 to determine whether the horizontal frame 2 is level. Two vertical clamping plates 32 are fixedly connected to both ends of the slide 3. The two clamping plates 32 are located on the front and rear sides of the horizontal frame 2. The front clamping plate 32 is threaded with a locking rod 33. Rotate the locking rod 33 so that the top of the locking rod 33 abuts against the side wall of the horizontal frame 2, so that the slide 3 is fixedly connected to the horizontal frame 2, thus completing the lateral positioning of the groove template 6. G. Place a level on the groove template 6 to observe whether the groove template 6 is level. If it is not level, you can rotate the lower crossbar nut for fine adjustment.

[0023] This device is used to position the groove template 6. It is highly adaptable and can be used under different construction requirements without the need for workers to measure and install each one individually.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for positioning a formwork for a concave slot of a ballastless track, characterized in that: The structure includes uprights, horizontal frames, carriages, crossbars, threaded columns, and grooved templates. Two opposing uprights and two opposing horizontal frames together form a large rectangular lower frame structure. The bottoms of the two vertically placed uprights are slidably connected to the molds on both sides of the ballastless track to be poured. Two horizontally placed crossbars are fixedly connected between the two uprights. Two opposing carriages and two opposing angle steels together form a small square upper frame structure. A carriage parallel to the carriage is slidably connected to the top of each horizontal frame. Two horizontally placed, parallel to the uprights, "L"-shaped crossbars are fixedly connected between the two carriages. Each threaded column has external threads on its outer wall, and each crossbar has external threads on its outer wall. Each of the front and rear sides of the plate has a horizontal bar round hole at intervals, through which the top of the threaded column passes. The four threaded columns are fixedly connected to the two horizontal bars at the four corners of the quadrilateral. The top of each vertical threaded column passes through the horizontal bar round hole of the horizontal plate from bottom to top and is then fixed to the horizontal plate of the horizontal bar by the upper threaded column nut. The groove template is located directly below the lower frame structure. There are four template round holes at intervals on the convex edges of the front and rear sides of the groove template, through which the bottom of the threaded column passes. The bottom of each threaded column passes through the template round hole on the convex edge of the groove template from top to bottom and is then fixed to the convex edge of the groove template by the lower threaded column nut, so as to realize the hoisting of the groove template and embed it into the steel cage of the ballastless track.

2. The device according to claim 1, characterized in that: The uprights are made of square steel welded into a U-shaped frame. At the bottom of each upright, an "L"-shaped wheel connecting bracket is fixedly installed. A T-shaped wheel is installed on each wheel connecting bracket. The top surface of the mold along its length is fixedly connected to a slide rail through the column bracket. The top of the slide rail is curved. The wheel abuts against the top curved surface of the slide rail, and its outer edge abuts against the inner side of the slide rail.

3. A device for positioning a formwork for a bed of a ballastless track according to claim 2, characterized in that: Two circular holes are provided on the front and rear sides of the lower crossbar at the bottom of the upright, allowing the top of the screw and the top of the smooth rod to pass through respectively. The length of the screw and the smooth rod are vertical and parallel to each other. The outer wall of the screw is provided with external threads, and the outer wall of the smooth rod is smooth. The bottom of the screw and the smooth rod are fixedly connected to the top of the solid block-shaped locking plate at intervals. The bottom of the locking plate can contact or disengage from the top of the slide rail.

4. The groove template positioning device for ballastless track according to claim 3, characterized in that: After the top of the screw passes through the lower crossbar hole at the bottom of the upright, lower crossbar nuts are threaded on both the top and bottom of the screw as it passes through the lower crossbar. The two lower crossbar nuts, together with the crossbar, stabilize the height of the locking plate.

5. A device for positioning a formwork for a bed joint of a ballastless track according to claim 4, characterized in that: Two detection holes are provided at intervals on the front and rear sides of the middle crossbar of the upright frame directly above the screw and the guide rod. The two detection holes and the two round holes are on the same vertical line, and the diameter of the detection holes is the same as the diameter of the screw and the diameter of the guide rod.

6. The device according to claim 1, characterized in that: The carriage is a rod-shaped structure with a flat water platform in the middle of the top of the carriage. A level can be placed on the water platform to determine whether the crossbeam is level.

7. The device according to claim 1, characterized in that it comprises: Two vertical clamping plates are fixedly connected at intervals at both ends of the carriage. The distance between the two clamping plates is the same as the width of the cross frame and they abut against the front and rear sides of the cross frame. That is, the carriage is clamped onto the cross frame from top to bottom.

8. A device for positioning a formwork for a bed joint of a ballastless track according to claim 7, characterized in that: A locking rod screw hole is provided in the middle of the front clamping plate, which penetrates the side wall of the clamping plate. An external thread is provided on the outer side wall of the locking rod, which matches the internal thread in the locking rod screw hole. The locking rod is screwed into the locking rod screw hole of the outermost clamping plate from the outside to the inside, and the top of the locking rod abuts against the side wall of the crossbeam to restrict the movement of the carriage.

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