Safety protection device for natural gas long-distance pipeline

Abstract

The utility model belongs to the technical field of pipeline protection, and particularly relates to a natural gas long-distance pipeline safety protection device which comprises a base, the two ends of the base are rotationally connected with one end of a lower connecting rod through pin shafts, the other end of the lower connecting rod is rotationally connected with the bottom end of a side plate through pin shafts, and the upper end of the side plate is rotationally connected with one end of an upper connecting rod through pin shafts. The other end of the upper connecting rod is rotationally connected with the two ends of the top base through pin shafts, a pipe clamp is installed on the top base, the number of the side plates is two, a rotating handle is rotationally installed on one side plate and connected with one end of a lead screw, the lead screw is in threaded connection with a nut, the other end of the lead screw slidably penetrates through the other side plate, and a buffering assembly is arranged on the lead screw. The buffering assembly comprises a first supporting spring, a second supporting spring, a guide rod and a connecting plate. Adjustment of the supporting height of the pipeline is achieved through a simple lead screw and a simple connecting rod mechanism, the pipeline can be elastically supported through the arrangement of the buffering assembly, and therefore rigid damage to the pipeline is avoided when the ground is settled or lifted.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline protection, and in particular relates to a safety protection device for a long-distance natural gas pipeline. Background Art

[0002] When the ground rises or sinks due to human engineering and economic activities, the pipeline base frame may rise, fall, tilt, or change position, causing the natural gas pipeline to become misplaced or loose under the external force exerted by the base frame, resulting in natural gas leakage, posing a safety hazard.

[0003] In order to solve the above problems, the utility model patent with authorization announcement number CN218972003U discloses a natural gas pipeline installation protection structure, which adapts to the effect of ground settlement or lifting by changing the length of the adjusting feet, so that the base frame still maintains the original height and position after the adjusting feet are adjusted, and does not change the supporting force of the base frame on the natural gas pipeline, thereby improving the problem of misalignment or loosening of the natural gas pipeline caused by the change of the base frame position due to the lifting or settlement of the surface.

[0004] However, the above mechanism has the following problems: 1. The device adopts mechanisms such as worm gears, bevel gears, pulley transmission, and screws, which have a complex structure and high cost; 2. When settlement occurs, since the base frame and the pipeline are rigidly connected and the height position cannot be adjusted automatically and in time, the pipeline may still be dislocated and loosened when settlement or lifting occurs. Utility Model Content

[0005] In view of the above problems, the purpose of the utility model is to provide a safety protection device for a long-distance natural gas pipeline, so as to solve the problem that when the existing natural gas pipeline sinks or rises, the fixed base frame does not play a sufficient safety protection role, which easily causes the natural gas pipeline to become misplaced or loose.

[0006] To achieve the above objectives, the utility model adopts the following technical solution: a natural gas long-distance pipeline safety protection device, comprising a base, wherein two ends of the base are rotatably connected to one end of a lower connecting rod through a pin shaft, the other end of the lower connecting rod is rotatably connected to the bottom end of a side plate through a pin shaft, the upper end of the side plate is rotatably connected to one end of an upper connecting rod through a pin shaft, the other end of the upper connecting rod is rotatably connected to two ends of a top seat through a pin shaft, a pipe clamp is installed on the top seat, the number of the side plates is two, a turning handle is rotatably installed on one of the side plates, the turning handle is connected to one end of a lead screw, the lead screw is threadedly connected to a nut and the other end of the lead screw slides through the other side plate, a buffer assembly is arranged on the lead screw, and the buffer assembly comprises a support spring 1, a support spring 2, a guide rod and a connecting plate.

[0007] The beneficial effects of the utility model are as follows: the pipe support height can be adjusted through a simple screw and connecting rod mechanism, and the setting of the buffer component can elastically support the pipe to avoid rigid damage to the pipe when the ground sinks or rises.

[0008] To provide elastic support for the pipeline when the ground settles;

[0009] As a further improvement of the above technical solution: the end of the lead screw away from the rotating handle is rotated to clamp the connecting plate, and the supporting spring is sleeved on the lead screw between the side plate and the nut.

[0010] The beneficial effect of this improvement is that when the base moves downward, the two side plates move toward each other, and the support spring is elastically contracted by being squeezed by the side plates and the nut, thereby providing elastic support for the pipeline.

[0011] To provide elastic support for the pipeline when the ground rises;

[0012] As a further improvement of the above technical solution: the second set of support springs is mounted on the lead screw between the side plate and the connecting plate.

[0013] The beneficial effect of this improvement is that when the base rises, the two side plates move away from each other, and the support spring 2 is elastically contracted by the compression of the side plates and the connecting plate, thereby providing elastic support for the pipeline.

[0014] In order to ensure the stable linear movement of the nut on the screw;

[0015] As a further improvement of the above technical solution: a through hole for slidingly installing a guide rod is opened on the side plate, and two ends of the guide rod are respectively connected to a connecting plate and a nut.

[0016] The beneficial effect of this improvement is that the guide rod plays a role of limiting and guiding, so that the nut can move stably in a straight line on the lead screw.

[0017] In order to ensure the stability of the screw support;

[0018] As a further improvement of the above technical solution: the lead screw is a trapezoidal lead screw structure.

[0019] The beneficial effect of this improvement is that the self-locking property of the trapezoidal lead screw can ensure the support stability of the device on the pipeline.

[0020] To support the pipeline stably;

[0021] As a further improvement of the above technical solution: the number of the lower connecting rods and the upper connecting rods are both four, and they are symmetrically arranged in groups of two.

[0022] The beneficial effect of this improvement is that the symmetrically arranged multiple lower connecting rods and the symmetrically arranged multiple upper connecting rods can provide stable support for the pipeline.

[0023] In order to effectively reduce the processing cost of the device;

[0024] As a further improvement of the above technical solution: the base, top seat and side plates are all channel steel structures.

[0025] The beneficial effects of this improvement are: the channel steel structure has low cost and a stable structure, and can ensure the connection stability with the upper connecting rod and the lower connecting rod.

[0026] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model;

[0028] Figure 2 It is the front view of the utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the utility model without the pipe clamp;

[0030] In the figure: 1. base; 2. lower connecting rod; 3. upper connecting rod; 4. top seat; 5. pipe clamp; 6. side plate; 7. turning handle; 8. lead screw; 9. nut; 10. buffer assembly; 101. support spring 1; 102. support spring 2; 103. guide rod; 104. connecting plate. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0032] Embodiment 1:

[0033] like Figure 1—3 shows: a natural gas long-distance pipeline safety protection device, comprising a base 1, wherein the two ends of the base 1 are rotatably connected to one end of a lower connecting rod 2 through a pin shaft, the other end of the lower connecting rod 2 is rotatably connected to the bottom end of a side plate 6 through a pin shaft, the upper end of the side plate 6 is rotatably connected to one end of an upper connecting rod 3 through a pin shaft, the other end of the upper connecting rod 3 is rotatably connected to the two ends of a top seat 4 through a pin shaft, a pipe clamp 5 is installed on the top seat 4, the number of the side plates 6 is two, a rotating handle 7 is rotatably installed on one of the side plates 6, the rotating handle 7 is connected to one end of a screw 8, and the screw 8 is threadedly connected The other end of the lead screw 8 is connected to the nut 9 and slides through the other side plate 6. The lead screw 8 is provided with a buffer assembly 10, and the buffer assembly 10 includes a support spring 101, a support spring 102, a guide rod 103 and a connecting plate 104. The pipe support height is adjusted by a simple lead screw and connecting rod mechanism. The setting of the buffer assembly 10 can make the pipe elastically supported to avoid rigid damage to the pipe when the ground settles or rises. The end of the lead screw 8 away from the handle 7 is rotated to clamp the connecting plate 104. The support spring 101 is sleeved between the side plate 6 and the nut 9. The two side plates 6 are moved toward each other on the lead screw 8 between the side plates 6 and the connecting plate 104 when the base 1 moves downward, and the support spring 101 is elastically contracted by the extrusion of the side plates 6 and the nut 9 to provide elastic support for the pipeline. The support spring 2 102 is sleeved on the lead screw 8 between the side plates 6 and the connecting plate 104. When the base 1 rises, the two side plates 6 move away from each other, and the support spring 2 102 is elastically contracted by the extrusion of the side plates 6 and the connecting plate 104 to provide elastic support for the pipeline. A through hole for slidingly installing a guide rod 103 is opened on the side plate 6, and the two ends of the guide rod 103 are respectively connected to the connecting plate 104 and the nut 9. The rod 103 plays the role of limiting and guiding, so that the nut 9 can move stably in a straight line on the screw 8. The screw 8 is a trapezoidal screw structure. The self-locking property of the trapezoidal screw can ensure the stability of the device's support for the pipeline. The number of the lower connecting rods 2 and the upper connecting rods 3 are both four, and they are symmetrically arranged in groups of two. The symmetrically arranged multiple lower connecting rods 2 and the symmetrically arranged multiple upper connecting rods 3 can provide stable support for the pipeline. The base 1, the top seat 4 and the side plate 6 are all channel steel structures. The channel steel structure has low cost and a stable structure, and can ensure the connection stability with the upper connecting rod 3 and the lower connecting rod 2.

[0034] The working principle of the present technical solution is as follows: when the ground sinks or rises, the pipe stably mounted on the top seat 4 under the fixation of the pipe clamp 5 moves synchronously with the top seat 4. Since the pipe at the sinking or rising position is supported and limited by the pipe within the normal installation range, the top seat 4 and the base 1 installed on the ground produce relative displacement, and the angle between the upper connecting rod 3 and the lower connecting rod 2 changes, and the screw 8 drives the nut 9 and the connecting plate 104 to displace, thereby causing the support spring 1 101 and the support spring 2 102 to produce elastic expansion and contraction, thereby achieving the effect of adaptive elastic support of the pipe; when the operator finds the sinking or rising phenomenon, he turns the handle 7 to make the nut 9 move linearly on the screw 8, thereby appropriately adjusting the support height of the pipe, and the guide rod 103 plays the role of limiting guide.

[0035] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0036] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A safety protection device for a long-distance natural gas pipeline, characterized in that: The invention comprises a base (1), wherein two ends of the base (1) are rotatably connected to one end of a lower connecting rod (2) through a pin shaft, the other end of the lower connecting rod (2) is rotatably connected to the bottom end of a side plate (6) through a pin shaft, the upper end of the side plate (6) is rotatably connected to one end of an upper connecting rod (3) through a pin shaft, the other end of the upper connecting rod (3) is rotatably connected to two ends of a top seat (4) through a pin shaft, a pipe clamp (5) is installed on the top seat (4), the number of the side plates (6) is two, a rotating handle (7) is rotatably installed on one of the side plates (6), the rotating handle (7) is connected to one end of a lead screw (8), the lead screw (8) is threadedly connected to a nut (9) and the other end of the lead screw (8) slides through the other side plate (6), a buffer assembly (10) is arranged on the lead screw (8), and the buffer assembly (10) comprises a supporting spring 1 (101), a supporting spring 2 (102), a guide rod (103) and a connecting plate (104).

2. A natural gas long-distance pipeline safety protection device according to claim 1, characterized in that: One end of the lead screw (8) away from the rotating handle (7) is rotatably connected to the connecting plate (104), and the supporting spring 1 (101) is sleeved on the lead screw (8) between the side plate (6) and the nut (9).

3. A natural gas long-distance pipeline safety protection device according to claim 1, characterized in that: The second support spring (102) is sleeved on the lead screw (8) between the side plate (6) and the connecting plate (104).

4. A natural gas long-distance pipeline safety protection device according to claim 1, characterized in that: The side plate (6) is provided with a through hole for slidingly mounting a guide rod (103), and two ends of the guide rod (103) are respectively connected to a connecting plate (104) and a nut (9).

5. A natural gas long-distance pipeline safety protection device according to claim 1, characterized in that: The lead screw (8) is a trapezoidal lead screw structure.

6. A natural gas long-distance pipeline safety protection device according to claim 1, characterized in that: The number of the lower connecting rods (2) and the number of the upper connecting rods (3) are both four, and they are symmetrically arranged in groups of two.

7. A natural gas long-distance pipeline safety protection device according to claim 1, characterized in that: The base (1), top base (4) and side plates (6) are all channel steel structures.

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