Flexible pipe blocking device for nodular cast iron pipe

Abstract

The utility model relates to the technical field of nodular cast iron pipe production auxiliary devices, in particular to a flexible pipe blocking device for nodular cast iron pipes, which comprises a fixed support and a non-driving track, the fixed support is vertically fixed on the non-driving track, an adjusting device is arranged at the top of the fixed support, and the adjusting device is in driving connection with a vertical spring. The spring is connected with a steel wire rope, and one end of the steel wire rope back to the spring is fixed on the non-driving track; wherein the adjusting device is used for adjusting the elasticity of the spring so as to adjust the looseness of the steel wire rope. When the nodular cast iron pipe collides with the steel wire rope along the non-driving track at a certain rolling speed, flexible stopping of the nodular cast iron pipe is buffered by adjusting the looseness of the steel wire rope, and the nodular cast iron pipe is prevented from directly colliding with the fixing support to be scrapped.

Description

Technical Field

[0001] The utility model relates to the technical field of production auxiliary devices for ductile iron pipes, and particularly relates to a flexible pipe blocking device for ductile iron pipes. Background Technique

[0002] At present, during the production of ductile iron pipes, the just-cast ductile iron pipes (with a temperature reaching 300 - 600 degrees Celsius) sometimes roll through a non-driven track with a certain inclination. A pipe blocking device is arranged at the end of the non-driven track to prevent the ductile iron pipes from falling off the non-driven track.

[0003] The existing pipe blocking devices for ductile iron pipes are usually steel fixed brackets. When the just-cast ductile iron pipes roll to the end on the non-driven track, the ductile iron pipes with a certain rolling speed will directly hit the fixed brackets, causing outer pits on the surface of the ductile iron pipes, and making the ductile iron pipes scrapped due to the outer pits. In addition, there are also some that install rubber-like buffer pads on the brackets. For example, a cooling tank lifting device disclosed in Chinese Patent Publication (Publication No.: CN204076722U) belongs to the field of pipe production equipment. This cooling tank lifting device forms a soft contact between the pipe fittings and the baffle through a buffer pad installed on the surface of the baffle. The buffer pad can be made of rubber or plastic, preferably a rubber buffer pad, to reduce the collision force and noise. However, the rubber buffer pad will be burned out due to the high temperature of the just-cast ductile iron pipes and is not suitable for buffering the just-cast ductile iron pipes. Content of the Utility Model

[0004] One of the main purposes of the utility model is to provide a flexible pipe blocking device for ductile iron pipes, which can effectively avoid the impact brought by the rolling ductile iron pipes, avoid the appearance of outer pits on the ductile iron pipes, and will not be burned out due to the high temperature of the just-cast ductile iron pipes.

[0005] To achieve the above purpose, the utility model provides a flexible pipe blocking device for ductile iron pipes, including a fixed bracket and a non-driven track. The fixed bracket is vertically fixed on the non-driven track. An adjusting device is arranged at the top of the fixed bracket. The adjusting device is drivingly connected with a vertical spring. The spring is connected with a steel wire rope. One end of the steel wire rope facing away from the spring is fixed on the non-driven track. Among them, the adjusting device is used to adjust the elasticity of the spring to adjust the slackness of the steel wire rope.

[0006] Further, the adjusting device includes a fixing plate and an adjusting bolt. The fixing plate is fixed on the fixing bracket. A threaded hole is formed in the fixing plate. The adjusting bolt includes a screw rod and a nut. The screw rod extends in the vertical direction and is threadedly connected to the threaded hole. The lower end of the screw rod is connected to the spring. The nut is threadedly connected to the screw rod, and the nut locks the screw rod on the fixing plate.

[0007] Further, a connecting hole is formed in the outer wall of the lower end of the screw rod. The connecting hole penetrates the screw rod along the radial direction of the screw rod. The spring is connected to the screw rod through the connecting hole.

[0008] Further, a hanging hole is provided at one end of the steel wire rope connected to the spring. The steel wire rope is connected to the spring through the hanging hole.

[0009] Further, the steel wire rope is welded to the non-driven track.

[0010] Further, the non-driven track is an inclined track, and the included angle between the inclined track and the ground is 15 - 30°.

[0011] Further, the fixing bracket includes a vertical fixing portion and a horizontal connecting portion. The vertical fixing portion is fixed to the non-driven track. The horizontal connecting portion is connected to the vertical fixing portion, and the horizontal connecting portion extends along the horizontal direction in which the non-driven track is laid. The adjusting device is fixed on the horizontal connecting portion.

[0012] Further, the fixing bracket is a steel bracket.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] When the ductile iron pipe flexible pipe blocking device is in use, when the ductile iron pipe impacts the steel wire rope along the non-driven track at a certain rolling speed, the elasticity of the spring is adjusted through the adjusting device to adjust the slack of the steel wire rope. The slack of the steel wire rope is used to make the ductile iron pipe stop flexibly, so that the steel wire rope achieves the best buffering effect, preventing the ductile iron pipe from directly hitting the fixing bracket and being scrapped, avoiding the appearance of outer pits on the ductile iron pipe, and at the same time, the steel wire rope will not be burned out due to the high temperature of the newly cast ductile iron pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the ductile iron pipe flexible pipe blocking device of the present utility model Figure 1 ;

[0016] Figure 2 is a schematic structural view of the ductile iron pipe flexible pipe blocking device of the present utility model Figure 2 :

[0017] Figure 3 This is a schematic structural diagram of a screw rod according to an embodiment of the present utility model;

[0018] Figure 4 This is a schematic structural diagram of another angle of the screw rod according to an embodiment of the present utility model;

[0019] Figure 5 This is a schematic structural diagram of a steel wire rope according to an embodiment of the present utility model.

[0020] Reference numerals in each drawing:

[0021] 1. Fixed bracket; 10. Vertical fixing part; 11. Horizontal connecting part; 2. Adjusting device; 20. Fixed plate; 21. Screw rod; 210. Connecting hole; 22. Nut; 3. Non-driven track; 30. Straight section; 31. Inclined section; 4. Spring; 5. Steel wire rope; 50. Hanging hole; 6. Ductile iron pipe. Specific embodiments

[0022] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "width", "upper", "lower", "front", "rear", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation of the present utility model.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and defined, the first feature being “above” or “below” the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being “above”, “over” and “on top of” the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being “below”, “beneath” and “underneath” the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0026] Please refer to Figure 1 - Figure 5 , the present utility model provides a flexible pipe retaining device for ductile iron pipes, which includes a fixed bracket 1, an adjusting device 2, a non-driven track 3, a spring 4 and a steel wire rope 5.

[0027] Refer to Figure 1 , the fixed bracket 1 is arranged at the end of the non-driven track 3. The fixed bracket 1 is a steel bracket, which improves the overall rigidity of the fixed bracket 1. The fixed bracket 1 is vertically fixed on the non-driven track 3. Specifically, the fixed bracket 1 includes a vertical fixing part 10 and a horizontal connecting part 11. One end of the vertical fixing part 10 is fixed on the non-driven track 3, and the vertical fixing part 10 and the non-driven track 3 are fixed by bolts or welding; the other end of the vertical fixing part 10 is integrally connected with the horizontal connecting part 11, and the horizontal connecting part 11 extends along the horizontal direction in which the non-driven track 3 is laid.

[0028] Refer to Figure 1 . The adjusting device 2 is fixed on the top of the fixed bracket 1. Specifically, the adjusting device 2 is fixed on the horizontal connecting part 11 of the fixed bracket 1. Refer to Figure 1 , the adjusting device 2 includes a fixing plate 20 and an adjusting bolt. The fixing plate 20 is fixed on the horizontal connecting part 11, and the fixing plate 20 and the horizontal connecting part 11 are fixed by bolts or welding. A threaded hole is formed on the fixing plate 20; the adjusting bolt includes a screw rod 21 and a nut 22. The screw rod 21 extends in the vertical direction and is threadedly connected with the threaded hole. The nut 22 is threadedly connected with the screw rod 21. The nut 22 is located above the fixing plate 20, and the nut 22 locks the screw rod 21 on the fixing plate 20. In addition, a connecting hole 210 is formed on the outer wall of the lower end of the screw rod 21, and the connecting hole 210 penetrates through the screw rod 21 along the radial direction of the screw rod 21.

[0029] Refer to Figure 1, the spring 4 is arranged in the vertical direction. One end of the spring 4 is connected to the lower end of the screw rod 21 through the connection hole 210 on the screw rod 21, so as to facilitate the connection between the spring 4 and the screw rod 21; the other end of the spring 4 is connected to the steel wire rope 5. The end of the steel wire rope 5 facing away from the spring 4 is fixed on the non-driven track 3. The steel wire rope 5 and the non-driven track 3 can be fixed by welding or bolt connection; Refer to Figure 1 and Figure 5 , a hanging hole 50 is provided at the end of the steel wire rope 5 connected to the spring 4. The steel wire rope 5 is connected to the spring 4 through the hanging hole 50, so that the steel wire rope 5 can be directly hung on the spring 4.

[0030] Refer to Figure 1 , the non-driven track 3 can be a horizontal track. Refer to Figure 2 , the non-driven track 3 can also be an inclined track. Among them, refer to Figure 2 , the non-driven track 3 in this embodiment adopts an inclined track. The included angle between the inclined track and the ground is 15° to 30°. In this way, the ductile iron pipe 6 can also roll on the non-driven track 3 by virtue of the inclination of the inclined track without the action of driving force.

[0031] Specifically, refer to Figure 2 , the inclined track in this embodiment includes a straight section 30 and an inclined section 31. The straight section 30 is the end of the inclined track, and the vertical fixing part 10 of the fixing bracket 1 is vertically fixed on the straight section 30. The inclined section 31 is the front end of the inclined track. The straight section 30 is parallel to the ground, and the included angle between the inclined section 31 and the ground is 15°. Of course, in other embodiments, the included angle between the inclined section 31 and the ground can also be 30° or 20°, which is not limited here.

[0032] In summary, the function of the adjusting device 2 is to adjust the elastic force of the spring 4, so as to achieve the purpose of adjusting the slack of the steel wire rope 5. When the ductile iron pipe 6 hits the steel wire rope 5 at a certain rolling speed along the non-driven track 3, the elastic force of the spring 4 is adjusted by the adjusting device 2 to adjust the slack of the steel wire rope 5. The slack of the steel wire rope 5 is used to make the ductile iron pipe 6 stop flexibly, so that the steel wire rope 5 achieves the best buffering effect, preventing the ductile iron pipe 6 from directly hitting the fixing bracket 1 and being scrapped, avoiding the appearance of pits on the outer surface of the ductile iron pipe 6, and at the same time, the steel wire rope 5 will not be burned out due to the high temperature of the just-cast ductile iron pipe 6.

[0033] The working principle of the present utility model is:

[0034] When it is necessary to adjust the elastic force of the spring 4, loosen the nut 22, adjust the lifting of the screw rod 21 to adjust the elastic force of the spring 4, so as to achieve the purpose of adjusting the elastic force of the spring 4. Utilize the elastic force of the spring 4 to adjust the looseness of the steel wire rope 5. Through the looseness of the steel wire rope 5, the ductile iron pipe 6 that impacts on the steel wire rope 5 at a certain rolling speed can be flexibly stopped, enabling the steel wire rope 5 to achieve the best buffering effect, preventing the ductile iron pipe 6 from directly hitting the fixed bracket 1 and being scrapped, avoiding the appearance of outer pits on the ductile iron pipe 6, and at the same time, the steel wire rope 5 will not be burned out due to the high temperature of the just-cast ductile iron pipe 6.

[0035] In summary, by utilizing the elasticity of the spring 4 and the wrapping property of the steel wire rope 5, the impact brought by the rolling cast iron pipe is effectively avoided, and the appearance of outer pits on the ductile iron pipe 6 caused by impact is avoided.

[0036] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A flexible pipe retaining device for ductile iron pipes, comprising a fixed bracket and a non-driven track, wherein the fixed bracket is vertically fixed on the non-driven track, characterized in that: An adjusting device is provided on the top of the fixed bracket, and the adjusting device is driven and connected to a vertical spring, and the spring is connected to a steel wire rope, and one end of the steel wire rope facing away from the spring is fixed on a non-driven track; wherein the adjusting device is used to adjust the elastic force of the spring and thus adjust the slackness of the steel wire rope.

2. The flexible pipe retaining device for ductile iron pipe according to claim 1, characterized in that: The adjusting device includes a fixing plate and an adjusting bolt. The fixing plate is fixed on the fixing bracket. A threaded hole is formed on the fixing plate. The adjusting bolt includes a screw rod and a nut. The screw rod extends in a vertical direction and is threadedly connected to the threaded hole. The lower end of the screw rod is connected to the spring. The nut is threadedly connected to the screw rod, and the nut locks the screw rod on the fixing plate.

3. The flexible pipe retaining device for ductile iron pipe according to claim 2, characterized in that: A connecting hole is provided on the outer wall of the lower end of the screw rod. The connecting hole penetrates the screw rod in the radial direction of the screw rod. The spring is connected to the screw rod through the connecting hole.

4. The flexible pipe retaining device for ductile iron pipe according to claim 1, characterized in that: One end of the steel wire rope connected to the spring is provided with a hanging hole, and the steel wire rope is connected to the spring through the hanging hole.

5. The flexible pipe retaining device for ductile iron pipe according to claim 1, characterized in that: The steel wire rope is welded to the non-driven rail.

6. The flexible pipe retaining device for ductile iron pipe according to claim 1, characterized in that: The non-driven track is an inclined track, and the angle between the inclined track and the ground is 15 to 30 degrees.

7. The flexible pipe retaining device for ductile iron pipe according to claim 1, characterized in that: The fixed bracket includes a vertical fixing part and a horizontal connecting part, the vertical fixing part is fixed to the non-driven track, the horizontal connecting part is connected to the vertical fixing part, and the horizontal connecting part extends along the horizontal direction of the non-driven track, and the adjusting device is fixed on the horizontal connecting part.

8. The flexible pipe retaining device for ductile iron pipe according to claim 1 or 7, characterized in that: The fixing bracket is a steel bracket.

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