Integrated fracturing command shelter transmission system

By designing a fracturing command cabin transmission system including a transmission mechanism, the problems of insufficient stability and bending resistance in the existing technology are solved, the smooth expansion and retraction of the expansion cabin is achieved, energy consumption is reduced and the overall strength of the cabin is enhanced.

CN223314909UActive Publication Date: 2025-09-09CHONGQING AIWATE MACHINERY MFG
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Patent Information

Application Number
CN202422661634.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-09-09
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

The existing expansion mechanism and transmission system have poor stability in the fracturing command cabin in the oil extraction field, insufficient anti-bending ability of the track, and cannot adapt to the harsh working environment.

Method used

A transmission system for a fracturing command cabin including a transmission mechanism was designed. The transmission mechanism consists of a drive assembly and a slide groove arranged at the bottom of the fixed cabin and the expansion cabin. A limit assist member is set in the slide groove. The sliding assembly adopts an H-shaped slide rail and a sliding rack structure. The drive assembly realizes smooth sliding of the sliding assembly through a motor, a reducer and a transmission gear.

Benefits of technology

The stability and bending resistance of the expansion cabin are improved, making expansion and folding smoother and more labor-saving, reducing the requirements for motor torque, reducing energy consumption, and enhancing the overall strength of the cabin.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of oil and gas field fracturing equipment, in particular to an integrated fracturing command square cabin transmission system which comprises a transmission mechanism arranged at the bottom of a fixed cabin and the bottom of an expansion cabin, and the transmission mechanism comprises a driving assembly and a sliding groove which are arranged on a base main beam of the fixed cabin and a sliding assembly fixedly arranged at the bottom of the expansion cabin. The driving assembly is used for driving the sliding assembly to slide in the sliding groove, and a plurality of limiting power assisting pieces are arranged on the two opposite side walls of the sliding groove. The sliding assembly comprises an H-shaped sliding rail fixedly arranged at the bottom of the expansion cabin and a sliding rack fixedly arranged at the bottom of the H-shaped sliding rail, the H-shaped sliding rail is arranged in the sliding groove in a sliding mode, and two U-shaped grooves of the H-shaped sliding rail are in rolling contact with the limiting power assisting piece; the driving assembly comprises a motor, a speed reducer, a transmission shaft and a transmission gear fixedly arranged on the transmission shaft which are sequentially connected, and the transmission gear is meshed with the sliding rack. The problems that an existing expansion mechanism and an existing transmission system are poor in stability, and a rail is poor in bending resistance can be solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas field fracturing equipment, in particular to an integrated fracturing command cabin transmission system. Background Art

[0002] In the oil production industry, fracturing command vehicles are the core control center for fracturing equipment, sending signals to other vehicles through control instruments to complete fracturing operations. Currently, an oil production well site typically requires at least four vehicles: a command vehicle, an instrument vehicle, an office, and a supervision room. However, this multi-vehicle configuration results in high command and control costs, and the multiple devices occupy a large amount of space. For some small production well sites, multiple vehicles are even difficult to arrange. Therefore, the need for integrated multi-vehicle systems has emerged.

[0003] Expandable shelters are a new type of shelter that can expand workspace, accommodate ample command and communication equipment, and provide a user-friendly operating environment. They are widely used in military, medical, rescue, exhibitions, and sporting events. For example, Chinese utility model patent publication number CN210852187U discloses an expansion mechanism and an expandable shelter. The expansion mechanism utilizes a rack and pinion mechanism to facilitate the expansion and retraction of the expandable shelter. However, in the field of oil extraction, the working environment is extremely harsh, often in extremely cold plateau regions, so the performance requirements of expandable shelters are even higher.

[0004] For example, it is necessary to use higher-strength profiles, better thermal insulation performance (more filling materials), and larger expansion space to configure and integrate multiple instrument equipment, which leads to an extremely large overall weight of the cabin; for example, an integrated fracturing command cabin currently used by our company can weigh up to 5-8 tons on one side, so higher requirements are placed on the strength of the expansion mechanism and the performance of the transmission system. The expansion mechanism and transmission system disclosed in the prior art have poor stability and poor anti-bending ability of the track, and are simply not suitable for the fracturing command cabin of this application.

[0005] Based on this, the inventors of the present application have developed an integrated fracturing command cabin transmission system with strong stability, strong bending resistance, smoother expansion and contraction, and labor-saving. Utility Model Content

[0006] The utility model provides an integrated fracturing command cabin transmission system, which can solve the technical problems of poor stability of the existing expansion mechanism and transmission system and poor anti-bending ability of the track.

[0007] This application provides the following technical solutions:

[0008] The integrated fracturing command cabin transmission system includes a transmission mechanism arranged at the bottom of the fixed cabin and the expansion cabin. The transmission mechanism includes a driving assembly and a slide groove arranged on the base main beam of the fixed cabin, and a sliding assembly fixedly arranged at the bottom of the expansion cabin. The driving assembly is used to drive the sliding assembly to slide in the slide groove. The slide groove is arranged along the width direction of the base main beam, and several groups of limiting assisting parts are arranged on the two opposite side walls of the slide groove; the sliding assembly includes an H-shaped slide rail fixedly arranged at the bottom of the expansion cabin and a sliding rack fixedly arranged at the bottom of the H-shaped slide rail. The H-shaped slide rail is slidably arranged in the slide groove, and the two U-shaped grooves of the H-shaped slide rail are in rolling contact with the limiting assisting parts; the driving assembly includes a motor, a reducer, a transmission shaft, and a transmission gear fixedly arranged on the transmission shaft, which are connected in sequence, and the transmission gear is meshed with the sliding rack.

[0009] Beneficial effects:

[0010] 1. By arranging limit assist parts on both sides of the slide, the limit assist parts are located in the U-shaped groove of the H-shaped slide rail and are in rolling contact with the H-shaped slide rail. On the one hand, the position angle of the H-shaped slide rail is limited to ensure that the H-shaped slide rail does not deviate in the slide groove. On the other hand, the friction between the H-shaped slide rail and the slide groove is reduced when the expansion cabin moves horizontally, providing assistance to the movement of the H-shaped slide rail, thereby making the expansion and retraction of the expansion cabin more labor-saving and stable, and lowering the torque requirement for the motor, which is conducive to reducing energy consumption.

[0011] 2. The slide rail adopts H-shaped steel beam, which has a relatively large section modulus. Therefore, the entire slide rail has strong bending resistance and does not require additional support after unfolding, making the entire cabin stronger.

[0012] 3. By fixing the H-shaped slide rail at the bottom of the expansion cabin, fixing the sliding rack at the bottom of the H-shaped slide rail, and setting the drive assembly on the base main beam of the fixed cabin, a rigid connection between the drive assembly, the slide trough and the base main beam and a rigid connection between the sliding assembly and the expansion cabin are achieved. Compared with the existing connection between the gear and the rack through the rack box, the connection of this application is more stable and reduces the structures such as the rack box and the fixed bracket.

[0013] 4. By adopting the transmission system of the present application, the fixed cabin can be expanded, thereby expanding the space of the fixed cabin, which is conducive to integrating various equipment for fracturing operations into one command cabin, thereby reducing the space occupied by multiple work vehicles, especially for small well sites, which is more conducive to setting up a command vehicle position; and the setting of an integrated fracturing command cabin is conducive to reducing command and control costs compared to the original multiple work equipment, while concentrating operators, facilitating operations and work coordination, reducing communication costs, and improving work efficiency.

[0014] Furthermore, the position-limiting assisting member is a bearing, and the position-limiting assisting member is unevenly arranged in the slide groove, and the number of the position-limiting assisting members increases along the expansion direction of the expansion cabin.

[0015] Beneficial effects: The farther the expansion cabin expands outward, the higher the control requirements. This application can optimize the force distribution during the sliding process by setting different numbers of bearings at different positions of the slide groove, making the sliding more uniform and smooth; and the rear end is a free end, and by setting more support points, the offset of the slide rail during the sliding process can be reduced, thereby improving the reliability of the system.

[0016] Furthermore, multiple groups of slide grooves are arranged on the main beam of the base of the fixed cabin, and the multiple groups of slide grooves are evenly arranged along the length direction of the main beam of the base. Each group of slide grooves includes adjacent left slide grooves and right slide grooves. The left slide groove is used for the sliding of the H-shaped slide rail located on the left side of the fixed cabin, and the right slide groove is used for the sliding of the H-shaped slide rail located on the right side of the fixed cabin.

[0017] Beneficial effect: Multiple groups of slide grooves are evenly arranged along the length of the main beam of the base, so that the sliding components have uniform support points during the entire sliding process, which can ensure uniform force distribution during the sliding process and reduce instability caused by excessive local force.

[0018] Furthermore, two groups of drive components are provided, which are located on the left and right sides of the base main beam respectively, and are used to drive the expansion cabins arranged on the left and right sides of the fixed cabin to expand or retract; each group of drive components includes multiple transmission shafts, and adjacent transmission shafts are connected by universal joints. Multiple transmission shafts are arranged along the length direction of the base main beam and are located at the bottom of the slide groove. The transmission gear is welded to the transmission shaft, and the transmission gear is located in the slide groove and engages vertically with the sliding rack.

[0019] Beneficial effects: Each set of drive components includes multiple transmission shafts, which are connected by universal joints, which helps to ensure the stability and reliability of the transmission process; and the design of the universal joint can adapt to the angle changes between the transmission shafts, reducing vibration and noise during the transmission process.

[0020] Furthermore, fixed floors are provided at the bottom of the fixed cabin and the expansion cabin, and a folding floor is provided between the fixed floor of the fixed cabin and the fixed floor of the expansion cabin. When the expansion cabin expands outward, the folding floor unfolds accordingly, and when the expansion cabin is folded inward, the folding floor folds vertically.

[0021] Beneficial effects: By setting up a folding floor, when the expansion cabin is unfolded, the floor of the expansion cabin is flush with the floor of the fixed cabin, ensuring the flatness of the platform after the expansion cabin is unfolded, facilitating personnel walking and equipment operation, and improving the convenience and safety of operation; when the expansion cabin is folded, the folding floor folds in the vertical direction, reducing the overall occupied space, making the fixed cabin and the expansion cabin more compact when not in use, and convenient for transportation and storage.

[0022] Furthermore, the fixed floor in the expansion cabin is arranged on the side of the expansion cabin away from the fixed cabin, and the folding floor includes a first folding plate and a second folding plate hinged to each other, the free side of the first folding plate is hinged to the fixed floor in the expansion cabin, and the free side of the second folding plate is hinged to the fixed floor in the fixed cabin.

[0023] Beneficial effects: The hinged design makes the first folding plate and the second folding plate move more smoothly when unfolding and folding, increasing the flexibility of the system. In addition, it can also make the folding floor more compact when folded, reducing the occupied space and facilitating transportation and storage.

[0024] Furthermore, a first lifting block is provided at the bottom of the second folding plate close to the fixed floor, and a second lifting block is provided on the upper surface of the H-shaped slide rail. The first lifting block and the second lifting block are matched through inclined surfaces, and the second lifting block is used to push the first lifting block to move upward.

[0025] Beneficial effect: By setting the first jacking block and the second jacking block, when the expansion cabin is folded inward, the H-shaped slide rail slides inward, thereby driving the second jacking block to move inward. Since the second jacking block and the first jacking block cooperate with each other through the inclined surface, when the second jacking block moves inward, it will push the first jacking block to move upward, thereby driving the second folding plate to arch upward. When the H-shaped slide rail continues to move inward, the first folding plate and the second folding plate gradually move upward to achieve folding.

[0026] Furthermore, a support column is provided on the upper surface of the H-shaped slide rail. When the foldable floor is unfolded horizontally, the bottom of the foldable floor contacts the top of the support column.

[0027] Beneficial effect: The support columns provide a certain support for the unfolded folding floor, further ensuring the strength and stability of the floor during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a front view of the fixed cabin of the command cabin in Example 1;

[0029] Figure 2 for Figure 1 Top view from the middle BB direction;

[0030] Figure 3 for Figure 1 A magnified schematic diagram of point A1 in the middle;

[0031] Figure 4 This is a schematic diagram of the expansion cabin on one side of the fixed cabin;

[0032] Figure 5 This is a cross-sectional view of the expansion compartments on both sides of the fixed compartment;

[0033] Figure 6 for Figure 5A magnified schematic diagram of A2 in the middle;

[0034] Figure 7 This is a cross-sectional view of the expanded compartments on both sides of the second embodiment after they are unfolded;

[0035] Figure 8 for Figure 7 A magnified schematic diagram of point A3 in the middle. DETAILED DESCRIPTION

[0036] The following is further described in detail through specific implementation methods:

[0037] The marks in the drawings of the specification include: fixed cabin 100, base main beam 101, cross beam 1010, longitudinal beam 1011, expansion cabin 200, sliding assembly 1, H-shaped slide rail 11, sliding rack 12, slide trough 2, limit assist bearing 21, drive assembly 3, motor 31, reducer 32, transmission shaft 33, universal joint 331, transmission gear 34, fixed floor 4, folding floor 5, first folding plate 51, second folding plate 52, first lifting block 61, second lifting block 62, support column 7.

[0038] Example 1

[0039] like Figure 1-4 As shown, the integrated fracturing command cabin transmission system includes a transmission mechanism arranged at the bottom of the fixed cabin 100 and the expansion cabin 200, the expansion cabin 200 is arranged on the left and right sides of the fixed cabin 100, and the bottom of the fixed cabin 100 is provided with a base main beam 101, the base main beam 101 includes a plurality of cross beams 1010 and longitudinal beams 1011; the transmission mechanism includes a drive component 3 and a slide 2 arranged on the base main beam 101 of the fixed cabin 100, and a sliding component 1 fixedly arranged at the bottom of the expansion cabin 200, the slide 2 is arranged along the width direction of the base main beam 101, and the drive component 3 is used to drive the sliding component 1 to slide in the slide 2.

[0040] like Figure 3 As shown, the sliding assembly 1 includes an H-shaped slide rail 11 fixedly arranged at the bottom of the expansion compartment 200 and a sliding rack 12 fixedly arranged at the bottom of the H-shaped slide rail 11; Figure 4 As shown, one end of the H-shaped slide rail 11 is welded to the side wall of the expansion cabin 200, and the other end is a free end slidingly set in the slide groove 2, and the sliding rack 12 is welded to the H-shaped slide rail 11. In this embodiment, multiple groups of H-shaped slide rails 11 and sliding racks 12 are evenly set at the bottom of the expansion cabin 200 on one side. Specifically, four groups are set as an example for detailed description.

[0041] like Figure 2As shown, four groups of slide grooves 2 are arranged on the base main beam 101 of the fixed cabin 100, and the four groups of slide grooves 2 are evenly arranged along the length direction of the base main beam 101, corresponding one to one with the sliding components 1; each group of slide grooves 2 includes adjacently arranged left slide grooves and right slide grooves, and the left slide grooves and the right slide grooves are welded to the top of the cross beam 1010 and the longitudinal beam 1011. The left slide groove is used for the H-shaped slide rail 11 located on the left side of the fixed cabin 100 to slide, and the right slide groove is used for the H-shaped slide rail 11 located on the right side of the fixed cabin 100 to slide.

[0042] like Figure 3 As shown, in this embodiment, a plurality of groups of position-limiting assisting members are provided on the two opposite side walls of each slide 2. The position-limiting assisting members are bearings, which are called position-limiting assisting bearings 21 in this embodiment. The two U-shaped grooves of the H-shaped slide rail 11 are in rolling contact with the position-limiting assisting bearings 21 on both sides of the slide 2; a better example is Figure 5 As shown, the limiting assist bearings 21 are unevenly arranged in the slide groove 2, and the number increases along the expansion direction of the expansion cabin 200, which is beneficial to optimizing the force distribution during the sliding process and making the sliding more uniform and smooth.

[0043] like Figure 2 As shown, the drive assembly 3 includes a motor 31, a reducer 32, a transmission shaft 33, and a transmission gear 34 fixedly mounted on the transmission shaft 33, which meshes with the sliding rack 12. Specifically, two drive assemblies 3 are provided, one on the left and one on the right side of the base main beam 101, respectively, to drive the expansion cabin 200, which is located on the left and right sides of the fixed cabin 100, to expand or retract. In this embodiment, the motor 31 is a servo motor, and the reducer 32 is a worm gear reducer. The rotating shaft of the motor 31 is rigidly connected to the rotating shaft of the reducer 32 coaxially, and the transmission shaft 33 is connected to the rotating shaft of the reducer 32 via a universal joint 331. The motor 31 and the reducer 32 are fixed to the crossbeam 1010 of the base main beam 101 via a mounting plate and bolts.

[0044] Specifically, each group of drive components 3 includes multiple transmission shafts 33, and adjacent transmission shafts 33 are connected by universal joints 331. Multiple transmission shafts 33 are arranged along the length direction of the base main beam 101 and are located at the bottom of the chute 2, as shown in FIG. Figure 6 As shown, the transmission gear 34 is welded to the transmission shaft 33 , and the transmission gear 34 is located in the sliding groove 2 for vertical engagement with the sliding rack 12 .

[0045] During use, the motor 31 drives the reducer 32 to rotate, the reducer 32 drives the transmission shaft 33 to rotate, the rotation of the transmission shaft 33 drives the transmission gear 34 to rotate, the transmission gear 34 drives the sliding rack 12 engaged with it to move horizontally, and then drives the H-shaped slide rail 11 to move horizontally in the slide groove 2, and the H-shaped slide rail 11 drives the expansion cabin 200 fixed to it to move horizontally, thereby realizing the expansion or contraction of the expansion cabin 200, so that the space of the fracturing command cabin is expanded or reduced.

[0046] The transmission system provided in the present application realizes the expansion of the fracturing command cabin, expands the operation command space, is conducive to integrating the equipment of multiple operation vehicles into one command cabin, reduces the space occupied by multiple operation vehicles, and is conducive to reducing command and control costs. At the same time, it concentrates the operation personnel, facilitates operation and work coordination, reduces communication costs, and improves work efficiency.

[0047] Example 2

[0048] The difference between this embodiment and the first embodiment is that Figure 7-8 As shown, a fixed floor 4 is provided at the bottom of the fixed cabin 100 and the expansion cabin 200, and a folding floor 5 is also provided between the fixed floor 4 of the fixed cabin 100 and the fixed floor 4 of the expansion cabin 200. When the expansion cabin 200 expands outward, the folding floor 5 unfolds accordingly. When the expansion cabin 200 is folded inward, the folding floor 5 folds in the vertical direction.

[0049] Specific examples Figure 8 As shown, the fixed floor 4 in the expansion cabin 200 is arranged on the side of the expansion cabin 200 away from the fixed cabin 100, and the folding floor 5 includes a first folding plate 51 and a second folding plate 52 hinged to each other, the free side of the first folding plate 51 is hinged to the fixed floor 4 in the expansion cabin 200, and the free side of the second folding plate 52 is hinged to the fixed floor 4 in the fixed cabin 100; in this embodiment, the first folding plate 51 and the second folding plate 52 are connected by stainless steel hinges, the first folding plate 51 and the fixed floor 4 of the expansion cabin 200 are connected by stainless steel hinges, and the second folding plate 52 and the fixed floor 4 of the fixed cabin 100 are also connected by stainless steel hinges.

[0050] Among them, a first lifting block 61 is provided at the bottom of one side of the second folding plate 52 close to the fixed floor 4. The first lifting block 61 is welded to the second folding plate 52, and the cross-section of the first lifting block 61 is a triangular structure; a second lifting block 62 is welded to the upper surface of the H-shaped slide rail 11, and the cross-section of the second lifting block 62 is also a triangular structure. The first lifting block 61 and the second lifting block 62 are matched through the inclined surface, and the second lifting block 62 is used to push the first lifting block 61 to move upward.

[0051] When the expansion cabin 200 is folded inward, the H-shaped slide rail 11 slides inward, thereby driving the second lifting block 62 to move inward. Since the second lifting block 62 and the first lifting block 61 are matched through the inclined surface, when the second lifting block 62 moves inward, it will push the first lifting block 61 to move upward, thereby causing the second folding plate 52 to arch upward; when the H-shaped slide rail 11 continues to move inward, the first folding plate 51 and the second folding plate 52 gradually move upward to achieve folding.

[0052] More preferably, in this embodiment, a support column 7 is further provided on the upper surface of the H-shaped slide rail 11. When the folding floor 5 is horizontally unfolded, the bottom of the folding floor 5 contacts the top of the support column 7; thereby providing a certain support for the folding floor 5, which is beneficial to further ensure the strength and stability of use.

[0053] The above is only an embodiment of the present invention. The present invention is not limited to the field involved in this implementation case. Common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. The integrated fracturing command cabin transmission system includes a transmission mechanism arranged at the bottom of the fixed cabin and the expansion cabin, characterized in that: The transmission mechanism includes a driving assembly and a slide groove arranged on the main beam of the base of the fixed cabin, and a sliding assembly fixedly arranged on the bottom of the expansion cabin. The driving assembly is used to drive the sliding assembly to slide in the slide groove. The slide groove is arranged along the width direction of the main beam of the base, and several groups of limiting assisting parts are arranged on the two opposite side walls of the slide groove; the sliding assembly includes an H-shaped slide rail fixedly arranged at the bottom of the expansion cabin and a sliding rack fixedly arranged at the bottom of the H-shaped slide rail. The H-shaped slide rail is slidably arranged in the slide groove, and the two U-shaped grooves of the H-shaped slide rail are in rolling contact with the limiting assisting parts; the driving assembly includes a motor, a reducer, a transmission shaft, and a transmission gear fixedly arranged on the transmission shaft, which are connected in sequence, and the transmission gear is meshed with the sliding rack.

2. The integrated fracturing command cabin transmission system according to claim 1 is characterized in that: The position-limiting assisting member is a bearing, and the position-limiting assisting member is unevenly arranged in the slide groove, and the number of the position-limiting assisting members increases along the expansion direction of the expansion cabin.

3. The integrated fracturing command cabin transmission system according to claim 2 is characterized in that: There are multiple groups of slide grooves on the base main beam of the fixed cabin, and the multiple groups of slide grooves are evenly arranged along the length direction of the base main beam. Each group of slide grooves includes adjacent left slide grooves and right slide grooves. The left slide groove is used for the H-shaped slide rail located on the left side of the fixed cabin to slide, and the right slide groove is used for the H-shaped slide rail located on the right side of the fixed cabin to slide.

4. The integrated fracturing command cabin transmission system according to claim 3 is characterized in that: The drive components are arranged in two groups, which are respectively located on the left and right sides of the base main beam, and are used to drive the expansion cabins arranged on the left and right sides of the fixed cabin to expand or retract; each group of drive components includes multiple transmission shafts, and adjacent transmission shafts are connected by universal joints. Multiple transmission shafts are arranged along the length direction of the base main beam and are located at the bottom of the slide groove. The transmission gear is welded to the transmission shaft, and the transmission gear is located in the slide groove and vertically meshes with the sliding rack.

5. The integrated fracturing command cabin transmission system according to any one of claims 1 to 4, characterized in that: The fixed cabin and the expansion cabin are provided with fixed floors at the bottom, and a folding floor is provided between the fixed floor of the fixed cabin and the fixed floor of the expansion cabin. When the expansion cabin is expanded outward, the folding floor is unfolded accordingly, and when the expansion cabin is folded inward, the folding floor is folded in the vertical direction.

6. The integrated fracturing command cabin transmission system according to claim 5, characterized in that: The fixed floor in the expansion cabin is arranged on a side of the expansion cabin away from the fixed cabin, and the folding floor includes a first folding plate and a second folding plate hinged to each other, the free side of the first folding plate is hinged to the fixed floor in the expansion cabin, and the free side of the second folding plate is hinged to the fixed floor in the fixed cabin.

7. The integrated fracturing command cabin transmission system according to claim 6, characterized in that: A first lifting block is provided at the bottom of the second folding plate close to the fixed floor, and a second lifting block is provided on the upper surface of the H-shaped slide rail. The first lifting block and the second lifting block are matched through an inclined surface, and the second lifting block is used to push the first lifting block to move upward.

8. The integrated fracturing command cabin transmission system according to claim 7, characterized in that: The upper surface of the H-shaped slide rail is further provided with a support column. When the foldable floor is unfolded horizontally, the bottom of the foldable floor contacts the top of the support column.

Citation Information

Patent Citations

  • Extension mechanism for extending square cabin and extended square cabin

    CN210852187U