Rubber and plastic positioning rod for embedded part of subway tunnel segment

Abstract

The utility model relates to the related technical field of positioning rods, in particular to a rubber and plastic positioning rod for a subway tunnel segment embedded part, which comprises a positioning rod, the positioning rod can be inserted into a first slot and a second slot, the outer wall of the bottom of the positioning rod is connected with a fixed positioning plate, and the top of the positioning rod is provided with a movable positioning plate through a movable slot. The movable positioning plate is arranged in the movable groove, an extrusion plate is arranged in the positioning rod to extrude the movable positioning plate out of the movable groove, the duct piece formwork and the pre-buried channel are tightly attached together through the fixed positioning plate and the movable positioning plate, rapid positioning of the pre-buried channel is achieved, the positioning rod can block the first inserting groove and the second inserting groove, and then slurry is prevented from entering the pre-buried channel; and the pipe piece formwork and the pre-buried channel cannot be damaged, repeated use of the pipe piece formwork and the pre-buried channel can be achieved, and higher practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field related to positioning rods, in particular to a rubber-plastic positioning rod for embedded parts of subway tunnel segments. Background Art

[0002] As an important infrastructure of modern cities, subways are being built on a large scale in my country. Most subway tunnels use shield technology. The tunnel lining is assembled from prefabricated concrete segments. Pre-embedded grooves are widely used in subways. When in use, the pre-embedded grooves need to be fixed on the segments in advance, so it is necessary to fix the pre-embedded grooves on the segment templates. Currently, welding is mostly used for fixing, which is not conducive to disassembly and recycling. Some adopt the method of drilling holes in the template in advance, and mud is easy to enter the holes. Since the reuse rate of the segment template is very high, repeated drilling during reuse will cause certain damage to the segment template, which is not conducive to its long-term recycling. For this reason, technical personnel in this field have proposed a rubber-plastic positioning rod for embedded parts of subway tunnel segments to solve the problems raised in the above background. Utility Model Content

[0003] The utility model aims to provide a rubber-plastic positioning rod for embedded parts of subway tunnel segments, so as to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A rubber-plastic positioning rod for embedded parts of subway tunnel segments, comprising a positioning rod, wherein the positioning rod is simultaneously inserted into a first slot provided on the segment template and a second slot provided on the embedded groove for use, wherein both sides of the lower part of the positioning rod are connected with fixed positioning plates, and both sides of the upper part of the positioning rod are provided with movable grooves, and movable positioning plates are provided in the movable grooves, and a threaded sleeve is provided at the bottom end of the positioning rod, and a threaded rod is connected with the inner thread of the threaded sleeve, and the bottom end of the threaded rod extends to the outside of the positioning rod and is connected with a turning handle, and the top end of the threaded rod extends to the inside of the positioning rod and is connected with a push rod, and an extrusion plate is provided between the two movable positioning plates, and the extrusion plate can move in the inner cavity of the positioning rod along the vertical direction, and the top end of the push rod is abutted against the bottom end of the extrusion plate, and the extrusion plate is used to extrude the movable positioning plate from the movable groove, and the vertical distance between the fixed positioning plate and the movable positioning plate is the sum of the thickness of the segment template and the thickness of the embedded groove.

[0006] As a further solution of the utility model: the inner walls on both sides of the positioning rod are connected with horizontal plates, and the horizontal plates are vertically inserted and connected with vertical rods, the top ends of the vertical rods are connected to the bottom ends of the extrusion plates, and elastic parts are sleeved on the vertical rods, the bottom ends of the elastic parts are connected to the bottom ends of the extrusion plates, and the bottom ends of the elastic parts are connected to the top ends of the horizontal plates.

[0007] As a further solution of the utility model: the extrusion plate is in the shape of a triangular plate, and the ends of the two movable positioning plates close to each other are provided with an inclined surface that matches the extrusion plate.

[0008] As a further solution of the utility model: the thickness of the movable positioning plate is greater than the thickness of the extrusion plate, an elastic rope is connected between the two movable positioning plates, and the elastic rope is arranged on the side of the extrusion plate.

[0009] As a further solution of the utility model: the bottoms of the ends of the two movable positioning plates that are away from each other are provided with arc-shaped surfaces.

[0010] The utility model has the following advantages: the positioning rod can be inserted into the first slot and the second slot, and the movable positioning plate can be squeezed out of the movable slot by the cooperation of the threaded rod, the extrusion plate, etc., and the segment template and the embedded groove can be tightly fitted together by the fixed positioning plate and the movable positioning plate to achieve rapid positioning of the embedded groove. The positioning rod can block the first slot and the second slot to prevent mud from entering, and will not damage the segment template and the embedded groove, so that the segment template and the embedded groove can be reused, and the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall internal structure of an embodiment of the utility model in a working state.

[0012] Figure 2 It is a schematic diagram of the overall internal structure of another working state of an embodiment of the utility model.

[0013] Figure 3 It is a top view of the internal structure of the positioning rod in the embodiment of the utility model.

[0014] Figure 4 It is a schematic diagram of the cooperation between the extrusion plate and the movable positioning plate in the embodiment of the utility model.

[0015] In the figure: 1. Segment formwork; 2. Embedded groove; 3. Positioning rod; 4. First slot; 5. Second slot; 6. Fixed positioning plate; 7. Threaded sleeve; 8. Threaded rod; 9. Push rod; 10. Turning handle; 11. Extrusion plate; 12. Movable groove; 13. Movable positioning plate; 14. Elastic rope; 15. Horizontal plate; 16. Vertical rod; 17. Elastic member; 18. Limit block; 19. Inclined surface; 20. Arc surface. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0017] Example 1: Please refer to Figures 1 to 4 A rubber-plastic positioning rod for embedded parts of subway tunnel segments, comprising a positioning rod 3, wherein the positioning rod 3 is inserted into a first slot 4 provided on a segment template 1 and a second slot 5 provided on a pre-embedded channel 2 for use, wherein both sides of the lower part of the positioning rod 3 are connected with fixed positioning plates 6, both sides of the upper part of the positioning rod 3 are provided with movable grooves 12, wherein movable positioning plates 13 are provided in the movable grooves 12, wherein the bottom end of the positioning rod 3 is provided with a threaded sleeve 7, wherein the threaded sleeve 7 is internally threadedly connected with a threaded rod 8, wherein the bottom end of the threaded rod 8 extends to the outside of the positioning rod 3 and is connected with a turning handle 10, wherein the top end of the threaded rod 8 extends to the inside of the positioning rod 3 and is connected with a turning handle 10, wherein the top end of the threaded rod 8 extends to the inside of the positioning rod 3 and is connected with a turning handle 10, wherein the top end of the threaded rod 8 extends to the inside of the positioning rod 3 and is connected with a turning handle 10, wherein the bottom ... bottom end of the threaded rod 8 extends to the inside of the positioning rod 3 and is connected with a turning handle 10, wherein the top end of the threaded rod 8 extends to the inside of the positioning rod 3 and is connected There is a push rod 9, and an extrusion plate 11 is arranged between the two movable positioning plates 13. The extrusion plate 11 can move in the vertical direction in the inner cavity of the positioning rod 3. The top end of the push rod 9 is abutted against the bottom end of the extrusion plate 11. The extrusion plate 11 is used to extrude the movable positioning plate 13 from the movable groove 12. The vertical distance between the fixed positioning plate 6 and the movable positioning plate 13 is the sum of the thickness of the segment template 1 and the thickness of the embedded groove 2. After the movable positioning plate 13 extends out of the movable groove 12, the segment template 1 and the embedded groove 2 can be confined between the fixed positioning plate 6 and the movable positioning plate 13, thereby realizing the positioning of the embedded groove 2.

[0018] See also Figure 1 , Figure 2 The inner walls on both sides of the positioning rod 3 are connected with a horizontal plate 15, and a vertical rod 16 is vertically inserted and connected on the horizontal plate 15. The top of the vertical rod 16 is connected to the bottom end of the extrusion plate 11, and an elastic member 17 is sleeved on the vertical rod 16. The bottom end of the elastic member 17 is connected to the bottom end of the extrusion plate 11, and the bottom end of the elastic member 17 is connected to the top of the horizontal plate 15. When the push rod 9 squeezes the extrusion plate 11, the elastic member 17 is in a stretched state. The elastic member 17 is selected as a spring. The bottom end of the vertical rod 16 is connected to a limiting block 18 to prevent the vertical rod 16 from moving excessively and detaching from the horizontal plate 15.

[0019] Example 2: See Figures 1 to 4 On the basis of the first embodiment, the extrusion plate 11 is in the shape of a triangular plate, and the ends of the two movable positioning plates 13 close to each other are provided with an inclined surface 19 that cooperates with the extrusion plate 11. In this embodiment, the setting thickness of the movable positioning plate 13 is greater than the setting thickness of the extrusion plate 11, and an elastic rope 14 is connected between the two movable positioning plates 13. The elastic rope 14 is arranged on the side of the extrusion plate 11, and the elastic rope 14 is arranged to be located on both sides of the extrusion plate 11 respectively.

[0020] See also Figure 1 , Figure 2 , Figure 4 The bottom of the ends of the two movable positioning plates 13 that are away from each other are provided with an arc surface 20, and the arc surface 20 prevents the corner of the movable positioning plate 13 from colliding with the top of the second slot 5 when the movable positioning plate 13 extends outward from the movable groove 12.

[0021] When the locking cam 11 is unlocked, the locking cam 13 is unlocked and the locking cam 14 is unlocked, and the locking cam 14 is unlocked, and the locking cam 14 is unlocked, and the locking cam 14 is unlocked.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rubber-plastic positioning rod for embedded parts of subway tunnel segments, comprising a positioning rod, characterized in that: The locking plate is provided at the bottom end of the locking plate, and the locking plate is provided with a locking means for locking the locking plate in the locking position so as to lock the locking plate in the locking position.

2. The rubber-plastic positioning rod for embedded parts of subway tunnel segments according to claim 1 is characterized in that: The inner walls on both sides of the positioning rod are connected with horizontal plates, and the horizontal plates are vertically inserted and connected with vertical rods, the top ends of the vertical rods are connected to the bottom ends of the extrusion plates, and elastic parts are sleeved on the vertical rods, the bottom ends of the elastic parts are connected to the bottom ends of the extrusion plates, and the bottom ends of the elastic parts are connected to the top ends of the horizontal plates.

3. The rubber-plastic positioning rod for embedded parts of subway tunnel segments according to claim 2 is characterized in that: The extrusion plate is in the shape of a triangular plate, and ends of the two movable positioning plates close to each other are provided with an inclined surface matched with the extrusion plate.

4. The rubber-plastic positioning rod for embedded parts of subway tunnel segments according to claim 2, characterized in that: The thickness of the movable positioning plate is greater than the thickness of the extrusion plate. An elastic rope is connected between the two movable positioning plates, and the elastic rope is arranged on the side of the extrusion plate.

5. The rubber-plastic positioning rod for embedded parts of subway tunnel segments according to claim 1, characterized in that: The bottoms of the two movable positioning plates at the ends away from each other are provided with arc surfaces.

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