Outdoor barrack

By installing threaded rods, guide rods and moving devices on the base plate of the second room body of the outdoor barracks, the base plate is lowered to the ground, which solves the problem of insufficient support strength in the existing outdoor barracks and achieves stronger support capacity and space expansion.

CN222847880UActive Publication Date: 2025-05-09SICHUAN WANBO PETROLEUM MASCH MFG CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202421831600.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2025-05-09
Estimated Expiration
2034-07-31

AI Technical Summary

Technical Problem

The support strength of the extended parts of the existing outdoor barracks is insufficient, resulting in no heavy objects being placed.

Method used

By providing a threaded rod, a guide rod and a bottom plate moving device on the base plate of the second room body, the bottom plate can be lowered to abutment with the ground, thereby increasing the support strength.

Benefits of technology

The bottom plate is no longer suspended, and the support strength is increased, allowing heavy objects to be placed, while further expanding the barracks space when needed.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222847880U_ABST
    Figure CN222847880U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of barracks, aims to solve the problem of poor supporting strength of a barrack body of an outdoor barrack expansion part in the prior art, and provides an outdoor barrack which comprises a first barrack body and a second barrack body, and the second barrack body is sleeved with the first barrack body and is in sliding connection with the first barrack body. The second room body comprises a first movable side plate, a second movable side plate, a threaded rod, a guide rod and a bottom plate, the first movable side plate and the second movable side plate are oppositely arranged, the first movable side plate is provided with a first cavity, and the second movable side plate is provided with a second cavity; the threaded rod is rotationally connected with the cavity wall of the first cavity; the guide rod is connected with the cavity wall of the second cavity; a threaded block is arranged on the side wall of the bottom plate, the threaded rod is in threaded connection with the threaded rod, a guide block is arranged at the end, away from the threaded block, of the bottom plate, and the guide block penetrates through the guide rod. Through the arrangement of the threaded rod, the guide rod and the bottom plate, the bottom plate of the second room body can descend to abut against the ground, the bottom plate is not suspended any more, and heavy objects can be placed on the bottom plate.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the field of barracks, in particular to an outdoor barracks. Background Art

[0002] Since oil drilling is mostly outdoor work, the staff's food and accommodation as well as the storage of tools all require outdoor barracks. Currently, there are generally two ways to build outdoor barracks. One is to build them directly outdoors, and the other is to transport the already built integrated barracks to the outdoors by truck.

[0003] The patent with the publication number CN221143721U discloses a camping house for oil exploration, which uses a brake motor, a rotating rod, a driving bevel gear, a driven bevel gear, a threaded rod, a guide rod, an internal thread block, a mounting plate and a movable wall. When not in use, the movable wall is retracted into the interior of the fixed wall, reducing the overall volume of the device, reducing the occupation of storage space, and facilitating its transportation and transfer. When needed, the movable wall is extended to increase the accommodating space inside the device, thereby improving the convenience of the camping house when in use and increasing the usability and practicality of the device. However, the room body corresponding to the movable wall is only supported by a relatively small roller, and the bottom plate is partially suspended, and the overall support stability is weak, so it is not suitable to place heavy objects in the room body. Utility Model Content

[0004] The utility model aims to provide an outdoor barracks to solve the problem of supporting strength of the extended part of the outdoor barracks in the prior art.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] An outdoor barracks comprises a first room body and a second room body, wherein the side wall of the first room body is provided with an opening, the second room body is sleeved in the first room body and is slidably connected to the first room body, and the second room body comprises: a first movable side plate, a second movable side plate, a threaded rod, a guide rod and a bottom plate, the first movable side plate and the second movable side plate are arranged in pairs, the first movable side plate is provided with a first cavity, and the second movable side plate is provided with a second cavity; the threaded rod is vertically arranged, and the threaded rod is rotatably connected to the cavity wall of the first cavity; the guide rod is vertically arranged, and the guide rod is connected to the cavity wall of the second cavity; the side wall of the bottom plate is provided with a threaded block, and the threaded block is threadedly connected to the threaded rod, and a guide block is provided at one end of the bottom plate away from the threaded block, and the guide block is passed through the guide rod.

[0007] Preferably, the base plate is provided with a first groove and a second groove, the bottom end of the first movable side plate is inserted into the first groove, and the bottom end of the second movable side wall is inserted into the second groove; the side walls in the width direction of the base plate are provided with a first fixing hole, and the first movable side plate and the second movable side plate are provided with a first through hole that cooperates with the fixing hole; when the base plate descends, the first fixing hole can be moved to align with the first through hole.

[0008] Preferably, a second through hole is further provided on the side of the first movable side panel and the second movable side panel away from the first fixing hole, a fixing plate is provided on the top wall of the bottom plate, the fixing plate is located in the second room body, and the fixing plate is provided with a second fixing hole, and when the bottom plate descends, the second fixing hole can be aligned with the second through hole.

[0009] Preferably, the first movable side panel and the second movable side panel are both slidably connected to the side walls of the first room body, and the bottom plate is provided with rollers.

[0010] Preferably, one end of the threaded block away from the guide block passes through the first cavity, and the outdoor barracks also includes: a connecting plate, a rotating shaft and a central shaft, the one end of the threaded block away from the guide block is connected to one end of the connecting plate, and the connecting plate is provided with a sliding groove; one end of the rotating shaft passes through the end of the connecting plate away from the threaded block and is plugged into the first movable side plate; the other end of the rotating shaft is rotatably connected to the roller; one end of the central shaft is inserted into the sliding groove, the central shaft has free mobility in the sliding groove, the other end of the central shaft is connected to the first movable side plate, and the central shaft is located between the connecting plate and the rotating shaft.

[0011] Preferably, the first movable side plate is provided with a clearance groove, and one end of the rotating shaft away from the roller is inserted into the clearance groove, and when the threaded block moves downward, the rotating shaft can move in the clearance groove.

[0012] Preferably, threaded rods are provided at both ends of the first movable side plate in the length direction, and driven gears are provided at the ends of the two threaded rods away from the threaded blocks. The outdoor barracks also includes: a rotating motor, and the output shaft of the rotating motor is provided with a driving gear, and the driving gear is transmission-connected to the driven gear through a transition gear.

[0013] Preferably, the second room body further comprises: a top plate, the top plate is bridged to the top of the first movable side plate and the second movable side plate, and the top plate gradually approaches the bottom plate during the process of extending away from the first room body.

[0014] The utility model has at least the following beneficial effects:

[0015] The utility model enables the bottom plate of the second room body to be lowered to contact the ground through the arrangement of the threaded rod, the guide rod and the bottom plate, so that the bottom plate is no longer suspended in the air and heavy objects can be placed thereon. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the outdoor barracks;

[0018] Figure 2 is a cross-sectional view of the second room;

[0019] Figure 3 for Figure 2 Detailed view of point A in the middle;

[0020] Figure 4 for Figure 3 Schematic diagram of the structure after the midsole plate is lowered;

[0021] Figure 5 is a structural schematic diagram of the first movable side panel or the second movable side panel;

[0022] Figure 6 is a first connection schematic diagram of the connection plate;

[0023] Figure 7 is a second connection schematic diagram of the connection plate;

[0024] Figure 8 It is a driving schematic diagram of the threaded rod;

[0025] Icons: 1-first housing body, 2-second housing body, 21-first movable side plate, 211-first cavity, 212-slide groove, 22-second movable side plate, 221-second cavity, 23-threaded rod, 24-guide rod, 25-bottom plate, 251-threaded block, 252-guide block, 253-first groove, 254-second groove, 255-first fixing hole, 3-first through hole, 4-second through hole, 5-fixing plate, 51-second fixing hole, 6-roller, 7-connecting plate, 71-sliding groove, 8-rotating shaft, 9-middle shaft, 10-yield groove, 11-rotating motor, 12-driving gear, 13-transition gear, 14-driven gear, 15-top plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, method scheme and advantages of the embodiments of the utility model clearer, the method scheme in the embodiments of the utility model is clearly and completely described. Obviously, the described embodiments are part of the embodiments of the utility model, not all embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] In oil exploration and drilling work, barracks are an indispensable part of employee accommodation, entertainment, and tool storage. At present, there are generally two ways to build outdoor barracks. One is to build them directly outdoors, and the other is to transport the built integrated barracks to the outdoors by truck.

[0028] The patent with publication number CN221143721U discloses a camping house for oil exploration, which is used in conjunction with a brake motor, a rotating rod, an active bevel gear, a driven bevel gear, a threaded rod, a guide rod, an internal thread block, a mounting plate and a movable wall. When not in use, the movable wall is retracted into the interior of the fixed wall, reducing the overall volume of the device, reducing the occupation of storage space, and facilitating its transportation and transfer. When it is needed, the movable wall is extended again to increase the accommodating space inside the device, thereby improving the convenience of the camping house when in use and increasing the availability and practicality of the device. However, the part of the house corresponding to the movable wall is only supported by a relatively small roller, and the bottom plate part is suspended in the air. The overall support stability is weak, and it is not suitable to place heavy objects in the house. Therefore, the applicant hopes to conceive a technical solution that can increase the stability of the barracks while increasing the usable area of ​​the barracks as much as possible, as shown in the following embodiments.

[0029] Embodiment 1, as Figure 1-5 As shown, an outdoor barracks includes a first room body 1 and a second room body 2, the side wall of the first room body 1 is provided with an opening, the second room body 2 is sleeved in the first room body 1 and is slidably connected with the first room body 1, and the second room body 2 includes: a first movable side plate 21, a second movable side plate 22, a threaded rod 23, a guide rod 24 and a bottom plate 25, the first movable side plate 21 and the second movable side plate 22 are arranged in pairs, the first movable side plate 21 is provided with a first cavity 211, and the second movable side plate 22 is provided with a second cavity 221; the threaded rod 23 is vertically arranged, and the threaded rod 23 is rotatably connected to the cavity wall of the first cavity 211; the guide rod 24 is vertically arranged, and the guide rod 24 is connected to the cavity wall of the second cavity 221; the side wall of the bottom plate 25 is provided with a threaded block 251, and the threaded block 251 is threadedly connected to the threaded rod 23, and the end of the bottom plate 25 away from the threaded block 251 is provided with a guide block 252, and the guide block 252 is penetrated by the guide rod 24.

[0030] In the specific implementation process, the first room body 1 can be as follows Figure 1 As shown, doors and windows are provided, and a cage for placing the air conditioner outside unit can also be provided. The second room body 2 is in the first room. The driving mechanism for sliding in and out of the room body can refer to the patent with publication number CN221143721U. The existing slide rail technology can also be used to set a slide rail on the side wall of the first room body 1, and a slider on the side wall of the second room body 2, and the movement of the slider on the slide rail is used to realize the movement of the second room body 2. Motor drive is one of the most common driving methods in linear guide sliders. Generally, a DC motor or a stepper motor is used to drive the slider. The DC motor has the characteristics of stable speed and large torque, and usually needs to be used with a reducer or a wheel rubber belt to increase the torque. The stepper motor has the characteristics of high precision and low speed, and usually needs to be used with a drive board. The advantages of motor drive are fast speed, high efficiency, strong reliability and high degree of automation. Cylinder drive is another common driving method in linear guide sliders. Generally, a cylinder is used for driving. The characteristics of cylinder drive are simple and easy to use, easy to operate, no power source is required, and it is reversible. The threaded rod 23 can be driven by a rotary motor 11, and two symmetrical threaded rods 23 and two symmetrical guide rods 24 can be set in the length direction of the bottom plate 25. Other structures corresponding to the threaded rods 23 and the guide rods 24, such as the threaded block 251 and the guide block 252, are also set accordingly. Since the bottom plate 25 needs to move up and down, the first movable side plate 21 or the second movable side plate 22 is also Figure 8 As shown, a slide groove 212 is provided to facilitate the movement of the threaded block 251 or the guide block 252. The second housing 2 is extended outward from the opening of the first housing 1 or retracted inward.

[0031] Since the second room body 2 is extended from the first room body 1, the bottom plate 25 of the second room body 2 is suspended in the air, so a bottom plate 25 moving device is provided in this embodiment, which can be seen in FIG. Figure 2-3 As shown, when the threaded rod 23 rotates, the bottom plate 25 can be driven to move downward along the guide rod 24 until the bottom plate 25 contacts the ground. At this time, the bottom plate 25 is no longer suspended in the air and has sufficient supporting strength to place heavy objects on the second room 2. If the bottom plate 25 of the second room 2 is suspended in the air, in order to avoid poor supporting strength, the length of the bottom plate 25 is not too long, so the length of the bottom plate 25 that can touch the ground in this embodiment can be increased to increase the barracks space. When the barracks need to be recovered, the threaded rod 23 is rotated in the opposite direction, and then the second room 2 is retracted into the first room 1. After the second room 2 is unfolded and placed on the ground, the upper surface of the bottom plate 25 of the second room 2 can be flush with the upper surface of the bottom plate 25 of the first room 1.

[0032] Embodiment 2, in order to increase the connection stability between the bottom plate 25 and the side plate of the second room body 2, an improvement is made on the basis of embodiment 1, such as Figure 3-4As shown, in this embodiment, the bottom plate 25 is provided with a first groove 253 and a second groove 254, the bottom end of the first movable side plate 21 is inserted into the first groove 253, and the bottom end of the second movable side wall is inserted into the second groove 254; the side walls in the width direction of the bottom plate 25 are provided with a first fixing hole 255, and the first movable side plate 21 and the second movable side plate 22 are provided with a first through hole 3 that cooperates with the fixing hole; when the bottom plate 25 descends, the first fixing hole 255 can be moved to align with the first through hole 3.

[0033] In the specific implementation process, when the bottom plate 25 is not lowered, the first through hole 3 and the first fixing hole 255 are as shown in FIG. Figure 3 As shown, the upper and lower staggered arrangements, when the bottom plate 25 is lowered to touch the ground, as shown Figure 4 As shown, the first through hole 3 is aligned with the first fixing hole 255, and the bottom plate 25 and the side plate can be fixed with screws or bolts. In order to further increase the connection stability between the bottom plate 25 and the side plate, multiple first through holes 3 and corresponding first fixing holes 255 can be provided.

[0034] Embodiment 3, in order to further increase the connection stability between the bottom plate 25 and the side plate, an improvement is made on the basis of embodiment 2, such as Figure 3-4 As shown, in this embodiment, a second through hole 4 is further provided on the side of the first movable side plate 21 and the second movable side plate 22 away from the first fixing hole 255, a fixing plate 5 is provided on the top wall of the bottom plate 25, the fixing plate 5 is located in the second room body 2, and the fixing plate 5 is provided with a second fixing hole 51, and when the bottom plate 25 descends, the second fixing hole 51 can be aligned with the second through hole 4.

[0035] In the specific implementation process, Figure 3 As shown, when the bottom plate 25 is not lowered, the second fixing holes 51 and the second through holes 4 are staggered up and down. When the bottom plate 25 is lowered to touch the ground, as shown in FIG. Figure 4 As shown, the second fixing hole 51 is aligned with the second through hole 4, and the bottom plate 25 and the side plate can be fixed with screws or bolts. In order to further increase the connection stability between the bottom plate 25 and the side plate, a plurality of second through holes 4 and second fixing holes 51 corresponding thereto can also be provided.

[0036] Embodiment 4, in order to increase the stability of the second room body 2 when moving, improvements are made on the basis of embodiments 1-3, such as Figure 1 As shown, in this embodiment, the first movable side panel 21 and the second movable side panel 22 are both slidably connected to the side wall of the first room body 1, and the bottom plate 25 is provided with rollers 6.

[0037] In the specific implementation process, the roller 6 can be Figure 1As shown, it is arranged at one end away from the first room body 1. The roller 6 can prevent the second room body 2 from being suspended in the air when sliding out of the first room body 1, and reduce the load of the device driving the second room body 2 to move. During the movement of the second room body 2, the roller 6 touches the ground and supports one end of the second room body 2.

[0038] In the fifth embodiment, in order to avoid the interference of the roller 6 when the bottom plate 25 descends, an improvement is made on the basis of the fourth embodiment, such as Figure 6-7 As shown, in this embodiment, one end of the threaded block 251 away from the guide block 252 passes through the first cavity 211, and the outdoor barracks also includes: a connecting plate 7, a rotating shaft 8 and a central shaft 9, the one end of the threaded block 251 away from the guide block 252 is connected to one end of the connecting plate 7, and the connecting plate 7 is provided with a sliding groove 71; one end of the rotating shaft 8 passes through the end of the connecting plate 7 away from the threaded block 251 and is plugged into the first movable side plate 21; the other end of the rotating shaft 8 is rotatably connected to the roller 6; one end of the central shaft 9 is inserted into the sliding groove 71, and the central shaft 9 has free mobility in the sliding groove 71, and the other end of the central shaft 9 is connected to the first movable side plate 21, and the central shaft 9 is located between the connecting plate 7 and the rotating shaft 8.

[0039] During the specific implementation process, the free movement of the central axis 9 in the sliding groove 71 means that there is a gap between the central axis 9 and one or some side walls of the sliding groove 71, and when the connecting plate 7 moves, the central axis 9 will not completely block the connecting plate 7. The plug-in structure of the rotating shaft 8 and the first movable plate can be inserted but not connected, or can refer to the plug-in structure of the electric toothbrush head to achieve plug-in and fixation. When it is necessary to lower the bottom plate 25, the rotating shaft 8 can be first pulled out from the first movable side plate 21, and then the threaded rod 23 is rotated, so that the threaded block 251 drives the end of the connecting plate 7 away from the roller 6 to move downward, and the end of the connecting plate 7 away from the threaded block 251 moves upward under the restriction of the central axis 9, thereby driving the roller 6 to move upward. The setting method of the roller 6 on the side of the guide block 252 can refer to the roller 6 on the side of the threaded block 251 in this embodiment, and will not be repeated.

[0040] Embodiment 6, in order to reduce the operation of taking the rotating shaft 8 out of the first movable side wall, an improvement is made on the basis of Embodiment 5, such as Figure 7 As shown, in this embodiment, the first movable side plate 21 is provided with a clearance groove 10, and the end of the rotating shaft 8 away from the roller 6 is inserted into the clearance groove 10. When the threaded block 251 moves downward, the rotating shaft 8 can move in the clearance groove 10.

[0041] During the specific implementation, when the bottom plate 25 descends, the rotating shaft 8 moves in the clearance groove 10 . The second movable side plate 22 may also be provided with a clearance groove 10 for the rotating shaft 8 on the guide block 252 side to move.

[0042] Embodiment 7, in order to synchronize the descending speed of the four corners of the bottom plate 25, an improvement is made on the basis of embodiment 4, such as Figure 8 As shown, in this embodiment, threaded rods 23 are provided at both ends of the first movable side plate 21 in the length direction, and driven gears 14 are provided at one end of the two threaded rods 23 away from the threaded block 251. The outdoor barracks also includes: a rotating motor 11, and the output shaft of the rotating motor 11 is provided with a driving gear 12, and the driving gear 12 is transmission-connected to the driven gear 14 through a transition gear 13.

[0043] During the specific implementation process, Figure 8 Only part of the transition gears 13 is shown, and the number of the transition gears 13 can be specifically set according to the length of the second housing 2. When the rotating motor 11 is started, the rotating motor 11 drives the driving gear 12 to rotate, the driving gear 12 drives the transition gear 13 to rotate, the transition gear 13 drives the driven gear 14 to rotate, and the driven gear 14 drives the threaded rod 23 to rotate. It should be noted that in order to ensure that the two threaded rods 23 rotate in the same direction, the number of transition gears 13 on both sides of the driving gear 12 can be one odd and one even.

[0044] In Example 8, in order to prevent rainwater from entering the barracks from the connection between the second room body 2 and the first room body 1, an improvement is made on the basis of Example 4, such as Figure 1 As shown, in this embodiment, the second room body 2 further includes: a top plate 15, the top plate 15 is bridged between the top of the first movable side plate 21 and the top of the second movable side plate 22, and the top plate 15 gradually approaches the bottom plate 25 during the process of extending away from the first room body 1.

[0045] In the specific implementation process, Figure 1 As shown, the end of the top plate 15 away from the first room body 1 is lower than the other end, and rainwater can slide down along the top plate 15. The second room body 2 can also be as shown in FIG. Figure 1 The right side panel is shown as being arranged so as to completely enclose the barracks on all sides.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An outdoor barracks, comprising a first room body and a second room body, wherein the side wall of the first room body is provided with an opening, and the second room body is sleeved in the first room body and slidably connected to the first room body, characterized in that: The second housing comprises: a first movable side plate and a second movable side plate, wherein the first movable side plate and the second movable side plate are arranged in pairs, the first movable side plate is provided with a first cavity, and the second movable side plate is provided with a second cavity; A threaded rod, the threaded rod is vertically arranged and rotatably connected to the cavity wall of the first cavity; A guide rod, which is vertically arranged and connected to a cavity wall of the second cavity; A bottom plate, a side wall of the bottom plate is provided with a threaded block, the threaded block is threadedly connected to the threaded rod, and one end of the bottom plate away from the threaded block is provided with a guide block, and the guide block is penetrated by the guide rod.

2. The outdoor camp according to claim 1, characterized in that: The bottom plate is provided with a first groove and a second groove, the bottom end of the first movable side plate is inserted into the first groove, and the bottom end of the second movable side wall is inserted into the second groove; the side walls in the width direction of the bottom plate are provided with a first fixing hole, and the first movable side plate and the second movable side plate are provided with a first through hole that cooperates with the fixing hole; when the bottom plate descends, the first fixing hole can be moved to align with the first through hole.

3. The outdoor camp according to claim 2, characterized in that: A second through hole is further provided on the side of the first movable side plate and the second movable side plate away from the first fixing hole. A fixing plate is provided on the top wall of the bottom plate. The fixing plate is located in the second room body and is provided with a second fixing hole. When the bottom plate descends, the second fixing hole can be aligned with the second through hole.

4. The outdoor camp according to any one of claims 1 to 3, characterized in that: The first movable side plate and the second movable side plate are both slidably connected to the side walls of the first room body, and the bottom plate is provided with rollers.

5. The outdoor camp according to claim 4, characterized in that: One end of the threaded block away from the guide block passes through the first cavity, and the outdoor camp also includes: A connecting plate, wherein one end of the threaded block away from the guide block is connected to one end of the connecting plate, and the connecting plate is provided with a sliding groove; A rotating shaft, one end of which passes through an end of the connecting plate away from the threaded block and is plugged into the first movable side plate; the other end of the rotating shaft is rotatably connected to the roller; A central axis, one end of which is inserted into the sliding groove, the central axis has free movement in the sliding groove, the other end of which is connected to the first movable side plate, and the central axis is located between the connecting plate and the rotating shaft.

6. The outdoor camp according to claim 5, characterized in that: The first movable side plate is provided with a clearance groove, and one end of the rotating shaft away from the roller is inserted into the clearance groove. When the threaded block moves downward, the rotating shaft can move in the clearance groove.

7. The outdoor camp according to claim 4, characterized in that: Both ends of the first movable side plate in the length direction are provided with threaded rods, and the ends of the two threaded rods away from the threaded blocks are provided with driven gears. The outdoor barracks also includes: A rotating motor, wherein the output shaft of the rotating motor is provided with a driving gear, and the driving gear is transmission-connected with the driven gear through a transition gear.

8. The outdoor camp according to claim 4, characterized in that: The second housing also includes: A top plate is bridged between the first movable side plate and the top of the second movable side plate, and the top plate gradually approaches the bottom plate during the process of extending away from the first room body.

Citation Information

Patent Citations

  • Camping house for petroleum exploration

    CN221143721U