Pipeline fixing device for gas engineering design and construction

Abstract

The utility model discloses a pipeline fixing device for gas engineering design construction, which comprises a fixed seat, an adjusting device is arranged in the fixed seat, the adjusting device comprises a movable seat, a mounting frame and a fixed frame, the movable seat is mounted on the inner side of the fixed seat, the fixed frame is mounted above the mounting frame, one side of the fixed frame is connected with a clamping device, and the clamping device is connected with the fixed seat. The clamping device comprises a linkage sleeve, a linkage rod, a linkage block, a linkage groove, a mounting groove and a linkage spring, the linkage block is connected with the inner wall of the mounting groove through the linkage spring, a limiting mechanism is arranged on the outer side of the linkage rod and comprises a movable rod, a movable groove, a limiting groove, an unlocking groove, a stop sleeve, a control plate, a control groove, a longitudinal plate and a clamping plate, and the movable rod is mounted on the side wall of the linkage sleeve. The movable groove is formed in the limiting groove, the limiting groove is formed in the outer side of the linkage rod, one end of the unlocking groove is connected with the limiting groove, the control groove is formed in the control plate, and the clamping plate is connected with the locking sleeve through the longitudinal plate. The height-adjustable linkage mechanism has the advantages of being adjustable in height, convenient to install and stable in structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal gas engineering design construction, more specifically, it relates to a pipeline fixing device for coal gas engineering design construction. BACKGROUND

[0002] In the field of coal gas engineering design and construction, pipeline fixing device as the key equipment to ensure the stability and safety of pipeline system, its design and function are crucial to the reliable operation of the whole coal gas conveying system, however, the current widely used pipeline fixing device technology still has many deficiencies, these problems not only affect the applicability and efficiency of the equipment, but also may cause potential threat to the safe operation of the whole coal gas conveying system.

[0003] Firstly, the pipeline fixing device in the prior art generally has the problem of fixed structure and insufficient flexibility, which mainly embodies in the following aspects: firstly, the height of the fixing device is usually fixed design, which cannot be adjusted according to the actual installation environment and terrain conditions; secondly, this rigid design is not satisfactory when facing complex terrain or special installation conditions, which may lead to inappropriate height of the fixing device; thirdly, the limitation of height adjustment greatly reduces the adaptability of the equipment in different installation environments; fourthly, when the height of the fixing device is not appropriate, additional processing or auxiliary equipment is often needed on site, which not only increases the construction difficulty and time, but also may introduce additional safety risks; fifthly, the lack of flexible adjustment mechanism makes the installation personnel unable to quickly respond to various emergencies on site, these factors, combined together, not only reduce the practicability and adaptability of the pipeline fixing device, but also may lead to low installation efficiency, increase engineering cost, and even affect the safety and stability of the whole coal gas system.

[0004] Secondly, the pipeline fixing device in the prior art has the problem of complicated operation in the installation process, which mainly manifests in that the fixing process usually needs to use a variety of different professional tools, which increases the complexity of operation, and the complex operation process prolongs the installation time, reduces the construction efficiency, at the same time, the multi-step operation increases the possibility of human error, which may lead to unstable installation quality, the complicated operation has safety hidden dangers when working in high altitude or narrow space, this complicated installation process not only reduces the work efficiency, but also increases the construction cost and safety risk, in addition, the complex operation may also lead to difficult maintenance and repair, which will increase the operation cost of the system in the long run.

[0005] In addition, although some improved devices realize the rapid installation of the pipeline by introducing a quick fixing device, these designs often have the problems of simple structure and insufficient stability. When the gas pipeline is in use, the gas conveyed in the pipeline will cause slight vibration of the pipeline. Due to the lack of effective anti-loosening mechanism, the structure is prone to loosening in the continuous vibration environment. In actual use, these design defects are more prominent. The continuous vibration caused by the gas conveying in the pipeline and the external vibration from the ground can cause the fixing structure to gradually loosen or even completely fall off, so that the pipeline loses the fixing effect, which increases the safety hazard of the pipeline system. Content of the utility model

[0006] (I) technical problems solved

[0007] In view of the problems in the prior art, the utility model provides a pipeline fixing device for gas engineering design and construction to solve the technical problems mentioned in the background art.

[0008] (II) technical scheme

[0009] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a pipeline fixing device for gas engineering design and construction, comprising a fixing seat, an adjusting device is arranged in the fixing seat, the adjusting device comprises a movable seat, a mounting frame and a fixing frame, the movable seat is movably installed on the inner side of the fixing seat, the mounting frame is fixedly arranged on both sides of the top end of the movable seat, the fixing frame is detachably mounted above the mounting frame, one side of the fixing frame is connected with a clamping device, the clamping device comprises a linkage sleeve, a linkage rod, a linkage block, a linkage groove, a mounting groove and a linkage spring, the linkage sleeve is detachably sleeved on the outer side of the linkage rod, the linkage block is clamped in the linkage groove, the linkage groove is opened in the inner side of the linkage sleeve, the mounting groove is opened in the inner side of the linkage rod, the linkage spring is movably installed in the mounting groove, one side of the linkage block is connected with the inner wall of the mounting groove through the linkage spring, a limiting mechanism is arranged on the outer side of the linkage rod, the limiting mechanism comprises a movable rod, a movable groove, a limiting groove, an unlocking groove, a stop sleeve, a control plate, a control groove, a vertical plate and a clamping plate, a plurality of movable rods are slidably installed on the side wall of the linkage sleeve, a plurality of movable grooves are opened in the limiting groove, the limiting groove is opened on the outer side of the linkage rod, one end of the unlocking groove is connected with the limiting groove, and the limiting groove and the movable groove have the same depth, the stop sleeve is slidably sleeved on the outer side of the linkage sleeve, the control plate is rotatably sleeved on the outer side of the linkage sleeve, the control groove is opened on the control plate, and the three clamping plates are connected through the vertical plate and the stop sleeve.

[0010] The utility model is further provided with a slide rail fixed on the inner side of the fixing seat, and a sliding groove is correspondingly arranged on the outer side of the movable seat, and the sliding groove is matched with the slide rail.

[0011] The utility model further sets up, detachable many air cylinders are established in the fixed seat, the piston rod is connected with the air cylinder output end, and the piston rod top end is detachably connected with the movable seat bottom end.

[0012] The utility model further sets up, the reset spring is movably arranged in the linkage sleeve, the reset plate is connected with the other end of the reset spring, and one side of the reset plate is in contact with one end of the linkage rod.

[0013] The utility model further sets up, a plurality of limiting grooves are formed in the linkage sleeve, the limiting grooves provide guiding function, and installation is more accurate.

[0014] The utility model further sets up, the limiting groove top end inner wall, linkage groove inner wall and one side of the linkage block all adopt chamfer structure design.

[0015] The utility model further sets up, the movable spring is arranged on the outside of the linkage sleeve, the outer end of the movable rod is connected with the outer wall of the linkage sleeve through the movable spring, and the movable spring guarantees accurate reset and locking function of the movable rod.

[0016] The utility model further sets up, the control spring is connected with one side of the stop sleeve, and the other end of the control spring is in contact with the control plate, so that the control spring simplifies operation process while providing pre-tightening force.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the utility model provides a pipeline fixing device for coal gas engineering design and construction, which has the following beneficial effects:

[0019] 1、 the adjusting device is innovatively designed through the fixed seat, movable seat, mounting frame and air cylinder and other components, effectively solves the problem of fixed height of the traditional pipeline fixing device, the slide rail arranged in the fixed seat is matched with the slide groove on the movable seat, realizes stable and reliable height adjustment, the combination of the air cylinder and the piston rod provides accurate lifting control, so that the operating personnel can quickly adjust the height according to the actual terrain and installation conditions, the flexible and adjustable design greatly improves the adaptability of the equipment, so that it can play the best effect under various complex terrains and special installation conditions, at the same time, the adjustable characteristics reduce the need for additional processing and auxiliary equipment on site, reduce the construction difficulty and time, improve the installation efficiency, reduce the potential safety risk, in addition, the accurate height adjustment capacity ensures the optimization of pipeline installation, improves the safety and stability of the entire coal gas system.

[0020] 2、The innovative design of the fixing device solves the problem of complicated installation process of traditional equipment. Through the ingenious cooperation of components such as the fixing frame, the linkage sleeve and the linkage rod, the quick fixing of the pipeline is realized. The design of the linkage block and the linkage groove makes the fixing process more stable and controllable. This design not only simplifies the installation process and reduces the use of professional tools, but also significantly improves the installation efficiency and reliability. By reducing the operation steps, the possibility of human error is reduced, and the consistency of installation quality is improved. At the same time, the simplified operation process also reduces the safety risk during high-altitude or narrow-space operation, improving the overall construction safety. In addition, the convenient installation method also simplifies the subsequent maintenance and repair work, which reduces the operating cost of the system in the long run.

[0021] 3、The design of the limiting mechanism cleverly solves the problem of unstable fixing structure. Through the cooperative work of components such as the movable rod, the movable slot, the limiting slot and the unlocking slot, the precise locking of the fixed state is realized. The setting of the stop sleeve, the control plate and the control slot provides the necessary operation mechanism, further enhancing the stability of the structure. The design of the movable spring and the control spring provides appropriate pre-tightening force, ensuring the close cooperation between the components. This multiple locking mechanism significantly improves the reliability of the equipment in a continuous vibration environment, effectively preventing the loosening of the structure caused by coal gas transportation in the pipeline and external vibration. Overall, the innovative design of the limiting mechanism not only ensures the long-term stability of the fixing, but also improves the safety of the equipment, reduces the maintenance frequency, brings long-term economic benefits and operation convenience to the enterprise, effectively prevents the loosening and falling of the fixing structure, greatly reduces the safety hazards of the pipeline system, prolongs the service life of the equipment, and reduces the maintenance frequency and cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic diagram of a pipeline fixing device for coal gas engineering design and construction in the utility model;

[0023] Figure 2 It is a structure schematic diagram of the fixing seat part removed in the utility model;

[0024] Figure 3 It is a sectional structure schematic diagram of the linkage sleeve and the mounting frame part in the utility model;

[0025] Figure 4 It is a dispersed structure schematic diagram of the fixing device and the limiting mechanism part in the utility model;

[0026] Figure 5 It is a dispersed structure schematic diagram of the linkage rod and the stop sleeve part in the utility model.

[0027] In the figure: 1, fixed seat; 2, movable seat; 3, mounting frame; 4, fixed frame; 5, linkage sleeve; 6, linkage rod; 7, linkage block; 8, linkage groove; 9, mounting groove; 10, linkage spring; 11, movable rod; 12, movable groove; 13, limiting groove; 14, unlocking groove; 15, stop sleeve; 16, control plate; 17, control groove; 18, vertical plate; 19, clamping plate; 20, slide rail; 21, slide groove; 22, air cylinder; 23, piston rod; 24, return spring; 25, return plate; 26, limiting groove; 27, movable spring; 28, control spring. DETAILED DESCRIPTION

[0028] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0030] In the present application, unless otherwise specified, the directions used such as "up, down" are generally with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" are generally with respect to the left and right shown in the drawings; "inner, outer" refer to the inner and outer with respect to the contour of each component itself, but the above directional words are not used to limit the present application.

[0031] Please refer to Figures 1-5The utility model provides a pipeline fixing device for coal gas engineering design construction, including fixed seat 1, be provided with adjusting device in fixed seat 1, and adjusting device includes movable seat 2, mounting frame 3 and fixed frame 4, movable seat 2 is movably installed in the inboard of fixed seat 1, mounting frame 3 is fixedly arranged at the top of movable seat 2 both sides, and fixed frame 4 is detachably installed above mounting frame 3, and one side of fixed frame 4 is connected with clamping device, and clamping device includes linkage sleeve 5, linkage lever 6, linkage block 7, linkage groove 8, installation slot 9 and linkage spring 10, linkage sleeve 5 is detachably set in the outside of linkage lever 6, linkage block 7 is clamped in linkage groove 8, and linkage groove 8 is opened in the inboard of linkage sleeve 5, and installation slot 9 is opened in the inboard of linkage lever 6, and linkage spring 10 is movably installed in installation slot 9, and one side of linkage block 7 is connected with the inner wall of installation slot 9 through linkage spring 10, and the outside of linkage lever 6 is provided with limiting mechanism, and limiting mechanism includes movable rod 11, movable slot 12, limiting slot 13, unlocking slot 14, stop sleeve 15, control plate 16, control slot 17, vertical plate 18 and clamping plate 19, a plurality of movable rod 11 is slidably installed in the side wall of linkage sleeve 5, a plurality of movable slot 12 is opened in limiting slot 13, limiting slot 13 is opened in the outside of linkage lever 6, one end of unlocking slot 14 is connected with limiting slot 13, and limiting slot 13 and movable slot 12 are same in depth, stop sleeve 15 is slidably set in the outside of linkage sleeve 5, control plate 16 is rotatably set in the outside of linkage sleeve 5, control slot 17 is opened in control plate 16, and three clamping plates 19 are connected through vertical plate 18 and stop sleeve 15.

[0032] The inboard of fixed seat 1 is fixedly provided with a sliding rail 20, and the outside of movable seat 2 is correspondingly provided with a sliding groove 21, and the sliding groove 21 is matched with the sliding rail 20.

[0033] A plurality of air cylinders 22 are detachably arranged in the fixed seat 1, the output end of the air cylinder 22 is connected with a piston rod 23, and the top end of the piston rod 23 is detachably connected with the bottom end of the movable seat 2.

[0034] In the embodiment, when the pipeline needs to be installed and fixed, first, the fixed seat 1 is stably installed on the installation surface, then a plurality of air cylinders 22 are selectively and synchronously opened according to the terrain and installation conditions, the movable seat 2 is driven by the piston rod 23 connected with the output end of the air cylinder 22 to slide along the sliding rail 20 and the sliding groove 21, and the movable seat 2 will ascend and descend with the mounting frames 3 arranged on both sides, when the mounting frames 3 are adjusted to the appropriate height, the air cylinders 22 are synchronously closed, then the pipeline is placed on the mounting frames 3, the fixed frame 4 is sleeved outside the pipeline, and the linkage lever 6 connected with one side of the fixed frame 4 penetrates through the mounting frames 3, then the fixed frame 4 is fixed to the mounting frames 3, so as to implement the fixation of the pipeline.

[0035] Please refer to Figures 3-5As a further embodiment of the whole device: a reset spring 24 is movably arranged in the linkage sleeve 5, and the other end of the reset spring 24 is connected with a reset plate 25, and one side of the reset plate 25 is in contact with one end of the linkage rod 6.

[0036] A plurality of limiting grooves 26 are arranged in the linkage sleeve 5.

[0037] The inner wall of the top end of the limiting groove 26, the inner wall of the linkage groove 8, and one side of the linkage block 7 are all designed in a chamfered structure.

[0038] An elastic spring 27 is arranged on the outer side of the linkage sleeve 5, and the outer end of the linkage rod 11 is connected with the outer wall of the linkage sleeve 5 through the elastic spring 27.

[0039] The control plate 16 is connected with a control spring 28 on one side, and the other end of the control spring 28 is in contact with the control plate 16.

[0040] More specifically, when the fixed frame 4 needs to be fixed to the mounting frame 3, first rotate the control plate 16, so that the control plate 16 drives the control slot 17 to rotate, when the control slot 17 rotates to the position corresponding to the clamping plate 19, push the stop sleeve 15, so that the stop sleeve 15 drives the vertical plate 18 and the clamping plate 19 to slide into the control slot 17, at the same time, the stop sleeve 15 will cooperate with the control plate 16 to press the control spring 28, when the control spring 28 is pressed to the limit, the clamping plate 19 near the stop sleeve 15 just completely passes through the control slot 17 and moves to the other side of the control plate 16, then continue to rotate the control plate 16, so that the control plate 16 drives the control slot 17 to move to the position not corresponding to the clamping plate 19, at this time, the vertical plate 18 and the clamping plate 19 cooperate to limit the stop sleeve 15 to one side of the control plate 16, and at this time, the inner wall of the stop sleeve 15 no longer limits the outer end of the movable rod 11, then align the position of the linkage block 7 with the limiting slot 26, and the one end of the movable rod 11 aligns with the unlocking slot 14, then the linkage sleeve 5 is sleeved outside the linkage rod 6, then the movable rod 11 slides along the unlocking slot 14, and the linkage block 7 slides into the limiting slot 26, then one end of the linkage rod 6 abuts against the reset plate 25, and the reset spring 24 is pressed through the reset plate 25, when the reset spring 24 is pressed to the limit, the linkage block 7 enters the end with a chamfer of the limiting slot 26, and the movable rod 11 enters one end of the unlocking slot 14, then rotate the linkage sleeve 5 clockwise, the linkage sleeve 5 will drive the movable rod 11 to move, then the side wall of the unlocking slot 14 presses the inner end of the movable rod 11, because of the round corner design of the side wall of one end of the unlocking slot 14 and the round corner processing of the end of the movable rod 11, then one end of the movable rod 11 will slide out of the unlocking slot 14 and slide into the limiting slot 13, and the other end of the movable rod 11 will drive the movable spring 27 to stretch, at the same time, the linkage sleeve 5 will drive the limiting slot 26 and the linkage slot 8 inside to move, then the side with a chamfer of the inner wall of the limiting slot 26 presses the chamfer part of the linkage block 7, so that the linkage block 7 is pressed into the mounting slot 9, and the linkage block 7 will press the linkage spring 10 arranged in the mounting slot 9, and one end of the movable rod 11 slides along the limiting slot 13, when the linkage slot 8 moves to the position corresponding to the linkage block 7, the linkage spring 10 resets to push the linkage block 7 out of the mounting slot 9 and into the linkage slot 8, at the same time, the movable spring 27 drives the movable rod 11 to slide back to its original position, so that the inner end of the movable rod 11 is inserted into the corresponding movable slot 12, then rotate the control plate 16 again, so that the control plate 16 drives the control slot 17 to rotate again, when the control slot 17 moves again to the position corresponding to the clamping plate 19, the control spring 28 pushes the stop sleeve 15 to slide back to its original position, then the stop sleeve 15 drives the vertical plate 18 and the clamping plate 19 to slide back to their original positions, when the control spring 28 is completely reset, the other two clamping plates 19 will move to the two sides of the control plate 16 respectively, then continue to rotate the control plate 16, so that the control plate 16 drives the control slot 17 to rotate again to the position not corresponding to the clamping plate 19, at this time, the vertical plate 18 and the corresponding two clamping plates 19 cooperate with the control plate 16 to support the stop sleeve 15, and cooperate with the pre-tightening force of the control spring 28,Thus, the stop sleeve 15 cannot slide easily, and then the inner wall of the stop sleeve 15 limits the outer end of the movable rod 11, and then the movable rod 11 cooperates with the movable slot 12 to realize the locking of the linkage sleeve 5 and the linkage rod 6, so that the linkage sleeve 5 cannot rotate, thereby ensuring the stable fixing effect.

[0041] In summary, when the pipeline needs to be installed and fixed, the fixing seat 1 is first stably installed on the installation surface, then the multiple air cylinders 22 are selectively and synchronously opened according to the terrain and installation conditions, the movable seat 2 is driven by the piston rod 23 connected to the output end of the air cylinder 22 to slide along the slide rail 20 and the slide groove 21, and the movable seat 2 will lift the installation frame 3 arranged on both sides, when the installation frame 3 is adjusted to the appropriate height, the air cylinder 22 is synchronously closed, then the pipeline is placed on the installation frame 3, the fixing frame 4 is sleeved outside the pipeline, the linkage rod 6 connected to one side of the fixing frame 4 penetrates through the installation frame 3, and then the fixing frame 4 is fixed to the installation frame 3, thereby implementing the fixation of the pipeline.

[0042] When it is needed to fix the fixing frame 4 to the mounting frame 3, first rotate the control plate 16, so that the control plate 16 drives the control slot 17 to rotate, when the control slot 17 rotates to the position corresponding to the clamping plate 19, push the stop sleeve 15, so that the stop sleeve 15 drives the vertical plate 18 and the clamping plate 19 to slide into the control slot 17, at the same time, the stop sleeve 15 cooperates with the control plate 16 to press the control spring 28, when the control spring 28 is pressed to the limit, the clamping plate 19 close to the stop sleeve 15 just completely passes through the control slot 17 and moves to the other side of the control plate 16, then continue to rotate the control plate 16, so that the control plate 16 drives the control slot 17 to move to the position not corresponding to the clamping plate 19, at this time, the vertical plate 18 and the clamping plate 19 cooperate to limit the stop sleeve 15 to one side of the control plate 16, and at this time, the inner wall of the stop sleeve 15 no longer limits the outer end of the movable rod 11, then align the position of the linkage block 7 with the limiting slot 26, and the one end of the movable rod 11 aligns the unlocking slot 14, then the linkage sleeve 5 is sleeved outside the linkage rod 6, then the movable rod 11 slides along the unlocking slot 14, and the linkage block 7 slides into the limiting slot 26, then one end of the linkage rod 6 abuts against the reset plate 25, and the reset spring 24 is pressed through the reset plate 25, when the reset spring 24 is pressed to the limit, the linkage block 7 enters the end with a chamfer of the limiting slot 26, and the movable rod 11 enters one end of the unlocking slot 14, then rotate the linkage sleeve 5 clockwise, the linkage sleeve 5 drives the movable rod 11 to move, then the side wall of the unlocking slot 14 presses the inner end of the movable rod 11, because of the round corner design of the side wall of one end of the unlocking slot 14 and the round corner processing of the end of the movable rod 11, then the one end of the movable rod 11 slides out of the unlocking slot 14 and slides into the limiting slot 13, and the other end of the movable rod 11 drives the movable spring 27 to stretch, at the same time, the linkage sleeve 5 drives the limiting slot 26 and the linkage slot 8 inside to move, then the side with a chamfer of the inner wall of the limiting slot 26 presses the chamfer part of the linkage block 7, so that the linkage block 7 is pressed into the mounting slot 9, and the linkage block 7 presses the linkage spring 10 arranged in the mounting slot 9, and the one end of the movable rod 11 slides along the limiting slot 13, when the linkage slot 8 moves to the position corresponding to the linkage block 7, the linkage spring 10 resets to push the linkage block 7 to slide out of the mounting slot 9 and clamps into the linkage slot 8, at the same time, the movable spring 27 drives the movable rod 11 to slide and reset, so that the inner end of the movable rod 11 is inserted into the corresponding movable slot 12, then rotate the control plate 16 again, so that the control plate 16 drives the control slot 17 to rotate again, when the control slot 17 moves again to the position corresponding to the clamping plate 19, the control spring 28 pushes the stop sleeve 15 to slide and reset, then the stop sleeve 15 drives the vertical plate 18 and the clamping plate 19 to slide and reset, when the control spring 28 is completely reset, the other two clamping plates 19 just move to the two sides of the control plate 16 respectively, then continue to rotate the control plate 16, so that the control plate 16 drives the control slot 17 to rotate again to the position not corresponding to the clamping plate 19, at this time, the vertical plate 18 and the corresponding two clamping plates 19 cooperate with the control plate 16 to support the stop sleeve 15, cooperate with the pre-tightening force of the control spring 28,Thus, the stop sleeve 15 cannot slide easily, and then the inner wall of the stop sleeve 15 limits the outer end of the movable rod 11, and then the movable rod 11 cooperates with the movable slot 12 to realize the locking of the linkage sleeve 5 and the linkage rod 6, so that the linkage sleeve 5 cannot rotate, thereby ensuring the stable fixing effect.

[0043] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection or other known connection mode, which will not be described one by one here. In the above, whenever it involves a fixed connection, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe fixing device for coal gas engineering design and construction, comprising a fixing base (1), characterized in that: The adjusting device is arranged in the fixed seat (1), the adjusting device comprises a movable seat (2), a mounting frame (3) and a fixed frame (4), the movable seat (2) is mounted on the inner side of the fixed seat (1), the fixed frame (4) is mounted above the mounting frame (3), a clamping device is connected to one side of the fixed frame (4), the clamping device comprises a linkage sleeve (5), a linkage rod (6), a linkage block (7), a linkage groove (8), a mounting groove (9) and a linkage spring (10), the linkage groove (8) is arranged on the inner side of the linkage sleeve (5), the mounting groove (9) is arranged on the inner side of the linkage rod (6), the linkage block (7) is connected to the inner wall of the mounting groove (9) through the linkage spring (10), a limiting mechanism is arranged on the outer side of the linkage rod (6), the limiting mechanism comprises a movable rod (11), a movable groove (12), a limiting groove (13), an unlocking groove (14), a stop sleeve (15), a control plate (16), a control groove (17), a vertical plate (18) and a clamping plate (19), a plurality of movable rods (11) are mounted on the side wall of the linkage sleeve (5), a plurality of movable grooves (12) are arranged in the limiting groove (13), the limiting groove (13) is arranged on the outer side of the linkage rod (6), one end of the unlocking groove (14) is connected with the limiting groove (13), the control groove (17) is arranged on the control plate (16), and the three clamping plates (19) are connected through the vertical plate (18) and the stop sleeve (15).

2. A pipe fixing device for coal gas engineering design and construction according to claim 1, characterized in that: A slide rail (20) is fixedly arranged on the inner side of the fixed seat (1), a sliding groove (21) is correspondingly arranged on the outer side of the movable seat (2), and the sliding groove (21) is matched with the slide rail (20).

3. A pipe fixing device for coal gas engineering design and construction according to claim 2, characterized in that: A plurality of air cylinders (22) are detachably arranged in the fixed seat (1), a piston rod (23) is connected to the output end of the air cylinder (22), and the top end of the piston rod (23) is detachably connected with the bottom end of the movable seat (2).

4. A pipe fixing device for coal gas engineering design and construction according to any one of claims 1 to 3, characterized in that: A reset spring (24) is movably arranged in the linkage sleeve (5), one end of the reset spring (24) is connected with a reset plate (25), and one side of the reset plate (25) is in contact with one end of the linkage rod (6).

5. A pipe fixing device for coal gas engineering design and construction according to claim 4, characterized in that: A plurality of limiting grooves (26) are arranged in the linkage sleeve (5).

6. A pipe fixing device for coal gas engineering design and construction according to claim 5, characterized in that: The top end inner wall of the limiting groove (26), the inner wall of the linkage groove (8) and one side of the linkage block (7) are designed in a chamfer structure.

7. A pipe fixing device for coal gas engineering design and construction according to claim 1, characterized in that: An active spring (27) is arranged on the outer side of the linkage sleeve (5), and the outer end of the movable rod (11) is connected with the outer wall of the linkage sleeve (5) through the active spring (27).

8. A pipe fixing device for coal gas engineering design and construction according to claim 7, characterized in that: A control spring (28) is connected to one side of the stop sleeve (15), and the other end of the control spring (28) is in contact with the control plate (16).

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