Connecting device of nodular cast iron pipe jacking pipe

Abstract

The utility model discloses a connecting device for nodular cast iron pipe jacking, which relates to the technical field of nodular cast iron pipe jacking and comprises a jacking pipe, a connecting frame is slidably connected to the outer wall of the jacking pipe, a second connecting frame is slidably connected to the outer wall of the connecting frame, and the outer wall of the second connecting frame is slidably connected with the outer wall of the jacking pipe. The ratchet wheel is arranged, when equipment needs to be used, a steel wire rope penetrates through the annular groove and then is clamped on the take-up wheel before use, then the rotating shaft is rotated, the rotating shaft rotates to drive the take-up wheel and the ratchet wheel to rotate at the same time, and the steel wire rope is tightened; the connecting frame and the second connecting frame are tensioned to fix the connecting position between the jacking pipes, when the ratchet wheel rotates reversely due to loosening of the steel wire rope, the connecting position between the nodular cast iron pipe jacking pipes can be reinforced, and the connecting position is prevented from being disengaged when the jacking rod is used subsequently.

Description

Technical Field

[0001] This utility model belongs to the field of ductile iron pipe jacking technology, and in particular relates to a connecting device for ductile iron pipe jacking. Background Technology

[0002] Ductile iron pipe jacking involves coating a standard ductile iron pipe with a T-joint with a layer of concrete mortar, tightly encasing the ductile iron pipe within the concrete layer. This reduces jacking resistance during construction, ensures balanced stress distribution across the pipe, and protects the cast iron pipe from damage.

[0003] When using existing equipment, the connection points of multiple ductile iron pipe jacking pipes may become loose, leading to leakage of the material transported inside the jacking pipe. Since existing equipment is not convenient for reinforcing the connection points, we propose a connection device for ductile iron pipe jacking pipes. Utility Model Content

[0004] The purpose of this utility model is to provide a connection device for ductile iron pipe jacking. By using a ratchet, it solves the problem that when multiple ductile iron pipes are used, the connection may become loose, leading to leakage of the material transported inside the jacking pipe, and the existing equipment is not convenient for reinforcing the connection.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a connecting device for a ductile iron pipe jacking pipe, including a jacking pipe, a connecting frame slidably connected to the outer wall of the jacking pipe, a second connecting frame slidably connected to the outer wall of the connecting frame, the outer wall of the second connecting frame slidably connected to the outer wall of the jacking pipe, and a connecting mechanism provided on the outer wall of the connecting frame.

[0007] The connecting mechanism includes a rotating shaft, the outer wall of which is rotatably connected to the inner wall of the connecting frame. A second connecting frame is fixedly connected to the outer wall of the rotating shaft. A ratchet is rotatably connected to the outer wall of the rotating shaft near the take-up reel. Several limiting blocks are fixedly connected to the outer wall of the connecting frame near the ratchet. Several annular grooves are provided on the inner walls of both the connecting frame and the second connecting frame. A limiting shaft is rotatably connected to the outer wall of the connecting frame near the limiting blocks. A baffle is rotatably connected to the outer wall of the limiting shaft. A fixing seat is fixedly connected to both the baffle and the outer wall of the connecting frame. The second limiting shaft is rotatably connected to the inner wall of the fixing seat. Several fixing blocks are rotatably connected to the outer wall of the second limiting shaft. Several telescopic rods are fixedly connected to the outer wall of the fixing blocks. Several springs are fixedly connected to the outer wall of the fixing blocks near the telescopic rods. A wire rope is slidably connected to the outer wall of the annular groove. The outer wall of the wire rope is fixedly connected to the outer wall of the jacking pipe. An installation mechanism is provided on the inner wall of the second connecting frame.

[0008] Furthermore, the installation mechanism includes several toothed limiting grooves, and the inner wall of the connecting frame and the connecting frame two near the toothed insert is provided with several toothed limiting grooves. The inner wall of the toothed limiting groove is slidably connected to the outer wall of the toothed insert.

[0009] Furthermore, a rotating rod is rotatably connected to the inner wall of the toothed insert, and a plurality of toothed limiting grooves are provided on the inner wall of the rotating rod. A turntable is fixedly connected to the outer wall of the rotating rod.

[0010] Furthermore, a telescopic rod 2 is fixedly connected to the outer wall of the turntable, and a spring 2 is fixedly connected to the inner wall of the toothed limiting groove 2 near the telescopic rod 2.

[0011] Furthermore, a toothed insert rod 2 is fixedly connected to the outer wall of the spring 2, and the outer wall of the toothed insert rod 2 is fixedly connected to the outer wall of the telescopic rod 2. A plurality of positioning holes are fixedly connected to the outer wall of the toothed insert rod 2.

[0012] Furthermore, the inner wall of the turntable is provided with several limiting grooves, and the inner wall of the limiting grooves is slidably connected with a locking block.

[0013] Furthermore, the inner wall of the toothed insert near the sliding groove is provided with a plurality of sliding grooves, and the inner wall of the sliding groove is slidably connected to the outer wall of the locking block.

[0014] Furthermore, a plurality of positioning rods are fixedly connected to the outer wall of one end of the toothed insert near the positioning hole, and the outer wall of the positioning rods is slidably connected to the inner wall of the positioning hole.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model incorporates a ratchet mechanism. Before use, the wire rope is threaded through the annular groove and secured to the take-up reel. Rotating the rotating shaft causes both the take-up reel and the ratchet to rotate simultaneously, tightening the wire rope. This tightening of the connecting frame and the second connecting frame further secures the connection between the ductile iron pipes. When the wire rope loosens, causing the ratchet to reverse, the ratchet's reversal causes a baffle to move and lock the ratchet in place, thus preventing further reversal. This reinforces the connection between the ductile iron pipes, preventing the connection from detaching during subsequent use and causing material leakage. Furthermore, the device is simple and convenient to operate.

[0017] 2. This utility model, by setting a toothed insert rod, allows for easy installation of the connecting frame and connecting frame two during equipment use. First, align the connecting frame and connecting frame two. Then, pass the toothed insert rod through the connecting frame and connecting frame two. Next, pull one end of the toothed insert rod outwards to completely disengage the positioning rod from the positioning hole. Then, rotate the toothed insert rod. Because the outer wall of the toothed insert rod engages with the inner wall of the toothed limiting groove, it facilitates easy installation of the device on the ductile iron pipe top pipe. The fixing method is simple and convenient, allowing for easy disassembly and reuse of the device.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the connecting mechanism of this utility model;

[0023] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a sectional view of the installation mechanism of this utility model;

[0025] Figure 6 This is a cross-sectional view of the internal structure of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Jacking pipe; 101. Connecting frame; 102. Connecting frame two; 2. Connecting mechanism; 201. Rotating shaft; 202. Take-up reel; 203. Ratchet; 204. Limiting block; 205. Annular groove; 206. Limiting shaft; 207. Baffle; 208. Fixed seat; 209. Limiting shaft two; 210. Telescopic rod; 211. Spring; 212. Fixed block; 3. Installation mechanism; 301. Toothed limiting groove; 302. Toothed insert rod; 303. Toothed limiting groove two; 304. Telescopic rod two; 305. Spring two; 306. Toothed insert rod two; 307. Positioning hole; 308. Turntable; 309. Limiting slide groove; 310. Locking block; 311. Slide groove; 312. Positioning rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6 As shown, this utility model is a connecting device for a ductile iron pipe jacking pipe, including a jacking pipe 1. A connecting frame 101 is slidably connected to the outer wall of the jacking pipe 1. A connecting frame 2 102 is slidably connected to the outer wall of the connecting frame 101. The outer wall of the connecting frame 2 102 is slidably connected to the outer wall of the jacking pipe 1. A connecting mechanism 2 is provided on the outer wall of the connecting frame 101. Through the connecting frame 101 and the connecting frame 2 102, the connection of the jacking pipe can be reinforced to prevent the connection from breaking during use.

[0030] The connecting mechanism 2 includes a rotating shaft 201, the outer wall of which is rotatably connected to the inner wall of the connecting frame 101. A connecting frame 102 is fixedly connected to the outer wall of the rotating shaft 201. A ratchet 203 is rotatably connected to the outer wall of the rotating shaft 201 near the take-up reel 202. When the wire rope 213 drives the ratchet 203 to reverse the rotation of the rotating shaft 201, the ratchet 203 is stopped by a baffle 207, thus fixing the length of the wire rope 213. Several... Each limiting block 204, and the inner walls of both connecting frame 101 and connecting frame 202 are provided with several annular grooves 205. The annular grooves 205 can limit the position of the wire rope 213, preventing the wire rope 213 from shifting when the connecting frame 213 is tightened. The outer wall of the end of connecting frame 101 near the limiting block 204 is rotatably connected to a limiting shaft 206. The outer wall of the limiting shaft 206 is rotatably connected to a baffle 207. Both the baffle 207 and the outer wall of connecting frame 101 are fixedly connected to a fixing seat 208. The fixed seat 208 can limit the position of the baffle 207. When the ratchet 203 reverses, the fixed seat 208 can fix the position of the baffle 207, thereby fixing the position of the ratchet 203. The inner wall of the fixed seat 208 is rotatably connected to the second limiting shaft 209. The outer wall of the second limiting shaft 209 is rotatably connected to several fixing blocks 212. The outer wall of the fixing blocks 212 is fixedly connected to several telescopic rods 210. The outer wall of the fixing block 212 near the telescopic rods 210 is fixedly connected to several springs 211. Due to their own elastic force, the springs 211... The fixed block 212 will always be pressed against the fixed seat 208, thereby keeping the baffle 207 always tight and keeping the baffle 207 always in contact with the surface of the ratchet 203. The outer wall of the annular groove 205 is slidably connected to the wire rope 213, and the outer wall of the wire rope 213 is fixedly connected to the outer wall of the jacking pipe 1. The inner wall of the connecting frame 202 is provided with the installation mechanism 3. The position of the connecting frame 101 and the connecting frame 202 can be fixed by the wire rope 213. When the connecting frame 101 and the connecting frame 202 are tightened, the connection between the jacking pipes can be reinforced.

[0031] The mounting mechanism 3 includes several toothed limiting grooves 301. Both the connecting frame 101 and the second connecting frame 102 have several toothed limiting grooves 301 on their inner walls near the toothed insert 302. The inner walls of the toothed limiting grooves 301 are slidably connected to the outer walls of the toothed insert 302. The toothed limiting grooves 301 can limit the position of the toothed insert 302, preventing the second toothed insert 306 from rotating and causing the toothed insert 302 to rotate. A rotating rod 313 is rotatably connected to the inner wall of the toothed insert 302. Several toothed limiting grooves 303 are provided on the inner wall of the rotating rod 313. A turntable 308 is fixedly connected to the outer wall of the rotating rod 313. Through the turntable 308, when the rotating rod 313 rotates, it can drive the rotating rod 302 to rotate. The turntable 308 rotates, causing several positioning rods 312 to slide within the slide groove 311. A telescopic rod 304 is fixedly connected to the outer wall of the turntable 308. A spring 305 is fixedly connected to the inner wall of the toothed limiting groove 303 near the telescopic rod 304. The spring 305 can always pull the toothed insert 306 tight due to its own elasticity, so that several positioning rods 312 on the toothed insert 306 are always locked into the positioning hole 307. The toothed insert 306 is fixedly connected to the outer wall of the spring 305. The outer wall of the toothed insert 306 is fixedly connected to the outer wall of the telescopic rod 304. The telescopic rod 304 can limit the position of the spring 305 to prevent the spring 305 from breaking during extension and retraction.

[0032] The outer wall of the toothed insert 306 is fixedly connected with several positioning holes 307. The inner wall of the turntable 308 is provided with several limiting grooves 309. The inner wall of the limiting grooves 309 is slidably connected with a locking block 310. The inner wall of the toothed insert 302 near the groove 311 is provided with several grooves 311. The inner wall of the groove 311 is slidably connected with the outer wall of the locking block 310. The locking block 310 can limit the overall position of the toothed insert 302, thereby fixing the connection between the connecting frame 101 and the connecting frame 102. The outer wall of the toothed insert 306 near the positioning hole 307 is fixedly connected with several positioning rods 312. The outer wall of the positioning rods 312 is slidably connected with the inner wall of the positioning hole 307. Through the positioning hole 307, the position of the positioning rods 312 can be fixed, thereby fixing the position of the toothed insert 306 and preventing the toothed insert 306 from rotating.

[0033] One specific application of this embodiment is:

[0034] When the equipment is needed, the wire rope 213 is first passed through the annular groove 205 and then secured to the take-up reel 202. Then, the rotating shaft 201 is rotated, causing the take-up reel 202 and ratchet 203 to rotate simultaneously, tightening the wire rope 213. This tightening of the connecting frame 101 and connecting frame 202 further secures the connection between the jacking pipe 1. When the wire rope 213 loosens, causing the ratchet 203 to reverse, the ratchet 203 reverses, causing the baffle 207 to move and lock the ratchet 203. Position 03, thereby preventing ratchet 203 from reversing. The telescopic rod 210 and spring 211 limit the position of the fixed seat 208 on the baffle 207, so that the baffle 207 always fits against the surface of ratchet 203 when ratchet 203 rotates forward and will not jam ratchet 203. When installing connecting bracket 101 and connecting bracket 202, first align connecting bracket 101 and connecting bracket 202, then pass the toothed insert 302 through connecting bracket 101 and connecting bracket 202, and then pull the toothed insert outward. The toothed insert rod 306 is positioned such that the positioning rod 312 is completely disengaged from the positioning hole 307. Then, the toothed insert rod 306 is rotated. Since the outer wall of the toothed insert rod 306 meshes with the inner wall of the toothed limiting groove 303, the rotation of the toothed insert rod 306 will cause the toothed limiting groove 303 to rotate, causing the rotating rod 313 to rotate within the toothed insert rod 302. Furthermore, the toothed limiting groove 301 meshes with the toothed insert rod 302. Therefore, the rotation of the rotating rod 313 will cause the turntable 308 to rotate, causing the multiple locking blocks 310 to slide within the limiting groove. The groove 309 slides in an arc direction. The slide groove 311 can correct the movement direction of the locking block 310 to make it slide in a straight line. When the locking block 310 is locked against the outer wall of the connecting frame 2 102, the position of the toothed rod 302 can be fixed, thereby fixing the connecting frame 101 and the connecting frame 2 102. Then the toothed rod 2 306 is released. At this time, the spring 2 305 will drive the toothed rod 2 306 to reset due to the elastic force and lock into the positioning hole 307 to complete the fixing of the toothed rod 2 306.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A connecting device for a ductile iron pipe jacking system, comprising a jacking pipe (1), characterized in that: The outer wall of the jacking pipe (1) is slidably connected to a connecting frame (101), and the outer wall of the connecting frame (101) is slidably connected to a connecting frame two (102). The outer wall of the connecting frame two (102) is slidably connected to the outer wall of the jacking pipe (1), and the outer wall of the connecting frame (101) is provided with a connecting mechanism (2). The connecting mechanism (2) includes a rotating shaft (201), the outer wall of which is rotatably connected to the inner wall of the connecting frame (101). A connecting frame two (102) is fixedly connected to the outer wall of the rotating shaft (201). A ratchet (203) is rotatably connected to the outer wall of the rotating shaft (201) near the take-up reel (202). Several limiting blocks (204) are fixedly connected to the outer wall of the connecting frame (101) near the ratchet (203). Several annular grooves (205) are provided on the inner walls of both the connecting frame (101) and the connecting frame two (102). A limiting shaft (206) is rotatably connected to the outer wall of the connecting frame (101) near the limiting block (204). The outer wall of the limiting shaft (206) is rotatably connected to... There is a baffle (207), and the outer walls of the baffle (207) and the connecting frame (101) are fixedly connected to a fixed seat (208). The inner wall of the fixed seat (208) is rotatably connected to a limit shaft (209). The outer wall of the limit shaft (209) is rotatably connected to several fixed blocks (212). The outer wall of the fixed block (212) is fixedly connected to several telescopic rods (210). The outer wall of the fixed block (212) near the telescopic rod (210) is fixedly connected to several springs (211). The outer wall of the annular groove (205) is slidably connected to a wire rope (213). The outer wall of the wire rope (213) is fixedly connected to the outer wall of the jacking pipe (1). The inner wall of the connecting frame (102) is provided with an installation mechanism (3).

2. The connecting device for a ductile iron pipe jacking system according to claim 1, characterized in that, The installation mechanism (3) includes several toothed limiting grooves (301). The inner walls of the connecting frame (101) and the connecting frame two (102) near the toothed insert (302) are provided with several toothed limiting grooves (301). The inner wall of the toothed limiting groove (301) is slidably connected to the outer wall of the toothed insert (302).

3. The connecting device for a ductile iron pipe jacking system according to claim 2, characterized in that, The inner wall of the toothed insert (302) is rotatably connected to a rotating rod (313), and the inner wall of the rotating rod (313) is provided with a plurality of toothed limiting grooves (303). The outer wall of the rotating rod (313) is fixedly connected to a turntable (308).

4. The connecting device for a ductile iron pipe jacking system according to claim 3, characterized in that, The outer wall of the turntable (308) is fixedly connected to a telescopic rod two (304), and a spring two (305) is fixedly connected to the inner wall of the toothed limiting groove two (303) near the telescopic rod two (304).

5. The connecting device for a ductile iron pipe jacking system according to claim 4, characterized in that, The outer wall of the second spring (305) is fixedly connected to the second toothed rod (306), the outer wall of the second toothed rod (306) is fixedly connected to the outer wall of the second telescopic rod (304), and the outer wall of the second toothed rod (306) is fixedly connected to a plurality of positioning holes (307).

6. The connecting device for a ductile iron pipe jacking pipe according to claim 5, characterized in that, The inner wall of the turntable (308) is provided with a number of limiting grooves (309), and the inner wall of the limiting grooves (309) is slidably connected with a locking block (310).

7. The connecting device for a ductile iron pipe jacking system according to claim 6, characterized in that, The toothed insert (302) has several grooves (311) on the inner wall of one end near the groove (311), and the inner wall of the groove (311) is slidably connected to the outer wall of the block (310).

8. The connecting device for a ductile iron pipe jacking pipe according to claim 7, characterized in that, A plurality of positioning rods (312) are fixedly connected to the outer wall of one end of the toothed insert (306) near the positioning hole (307), and the outer wall of the positioning rod (312) is slidably connected to the inner wall of the positioning hole (307).

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