Translation sliding type expansion structure

Abstract

The utility model discloses a translation sliding type expansion structure, which relates to the technical field of mobile houses, and comprises a house base, a house main body, a pair of expansion units and a pair of expansion driving units, the house main body is fixedly arranged on the house base, and the house main body is provided with a mounting window penetrating through two sides of the house main body; the pair of expansion units are arranged in the mounting window and are in sliding connection with the house body, the pair of expansion driving units are arranged on the two sides of the house base correspondingly, are matched with the pair of expansion units correspondingly and are used for driving the expansion units, and the problems that when an existing mobile house is built, the expansion process is complex, and the expansion time is long are solved; and meanwhile, the problems that when an existing mobile house is used, the area is small, and the living experience is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile houses, in particular to a translation sliding expansion structure, and more particularly to a mobile house structure with translation sliding expansion. Background Art

[0002] A mobile house is a mobile building, which has the advantages of being easy to transport and can be quickly erected, so it is widely used in emergencies. With the development of mobile house technology, mobile houses are gradually applied to more fields, such as scenic area vacation houses, outdoor camping houses, etc.

[0003] The mobile houses in the prior art generally include a house main body and a manual expansion unit. When erecting a mobile house, the manual expansion unit needs to be changed from a folded and stored state to an unfolded state to complete the erection of the mobile house. In this process, generally, operations such as manually flipping the expansion board and manually fixing are required, which results in the problems of complex expansion process and long expansion time when erecting the current mobile house. At the same time, the current mobile house also has problems such as small area and poor living experience.

[0004] In the invention with the application number: CN201680069281.3 and the publication number: CN109312562B, a movable four-way expansion house is disclosed, including a main frame, an expansion frame, a floor member, a shielding film mechanism and a plurality of eaves mechanisms. When erecting it, there are still problems of complex erection process and long erection time. Summary of the Utility Model

[0005] Based on this, in view of the above problems, the utility model provides a translation sliding expansion structure, which solves the problems of complex expansion process and long expansion time when erecting the current mobile house, and at the same time solves the problems of small area and poor living experience when using the current mobile house.

[0006] The technical solution of the utility model is as follows:

[0007] A translation sliding expansion structure includes a house base, a house main body, a pair of expansion units and a pair of expansion driving units. The house main body is fixedly arranged on the house base. There are installation windows penetrating through both sides of the house main body. A pair of expansion units are arranged in the installation windows and are slidably connected to the house main body. A pair of expansion driving units are respectively arranged on both sides of the house base and are respectively arranged in cooperation with the pair of expansion units for driving the expansion units;

[0008] The expansion drive unit includes a drive member, a connecting rod, a pair of sliding rods and a pair of first connecting members. A pair of sliding grooves are provided on the housing base and are arranged in cooperation with the pair of sliding rods. One end of the sliding rod is arranged in the sliding groove and is slidably connected to the sliding groove. The pair of first connecting members are respectively arranged at the other ends of the pair of sliding rods and are detachably connected to the sliding rods. The connecting rod is arranged between the pair of first connecting members and is detachably connected to the pair of first connecting members at both ends.

[0009] A connecting plate is provided between the pair of first connecting members. The two ends of the connecting plate are respectively detachably connected to the pair of first connecting members. The pair of first connecting members can be detachably connected to the bottom of the expansion unit through the connecting plate. An installation groove is provided on the housing base and is arranged in cooperation with the drive member. The drive member is arranged in the installation groove, and the output end of the drive member is detachably connected to one end of one of the sliding rods through a second connecting member.

[0010] Preferably, the first connecting member includes a connecting sleeve and an L-shaped fixing plate. The connecting sleeve is fixedly arranged on one side of the L-shaped fixing plate. The connecting sleeve can be sleeved on the end of the sliding rod and is detachably connected to the sliding rod through a bolt.

[0011] Preferably, an adjusting bolt is provided on the L-shaped fixing plate. One end of the adjusting bolt penetrates through the L-shaped fixing plate and is threadedly connected to the L-shaped fixing plate. A foot pad is provided at the end of the adjusting bolt, and the foot pad is arranged at the end where the adjusting bolt contacts the ground.

[0012] Preferably, the two ends of the connecting plate are respectively detachably connected to the L-shaped fixing plates of the pair of first connecting members through bolts, and the top of the L-shaped fixing plate is fixedly connected to the bottom of the expansion unit.

[0013] Preferably, the second connecting member includes an installation sleeve, a connecting block, a threaded connecting rod and a limiting sleeve. The installation sleeve is fixedly arranged on the sliding rod and is located on one side of the first connecting member. The connecting block is fixedly arranged on one side of the installation sleeve. One end of the threaded connecting rod is fixedly connected to the output end of the drive member, and the other end penetrates through the connecting block and has a clearance fit with the connecting block. A pair of locking nuts are sleeved on the threaded connecting rod, and the pair of locking nuts are respectively located on both sides of the connecting block and are used to lock the connecting block and the threaded connecting rod. The limiting sleeve is arranged on the threaded connecting rod and is threadedly connected to the threaded connecting rod.

[0014] Preferably, a fixing groove is provided at the end of one end of the sliding rod located in the sliding groove. The fixing groove penetrates through the sliding rod. Two groups of pulleys are provided in the fixing groove, and the pulleys are rotatably connected to the fixing groove. Among them, one group of pulleys is arranged on the upper side of the fixing groove and contacts the top side wall of the sliding groove, and the other group of pulleys is arranged on the lower side of the fixing groove and contacts the bottom side wall of the sliding groove. The two groups of pulleys are arranged in a staggered manner.

[0015] Preferably, a rack is provided at the bottom of one end of the sliding rod located in the sliding groove, and a number of rotation fitting members are provided on the housing base and are arranged to cooperate with the rack on the sliding rod. The rotation fitting members are used to enable the sliding rods in the two expansion drive units to slide stably.

[0016] Preferably, the rotation fitting member includes a fixed sleeve, a rotating shaft rod, a gear and a pair of clamping plates. The fixed sleeve is provided on the housing base and is arranged to cooperate with the sliding groove. One end of the sliding rod can pass through the fixed sleeve and is slidably connected to the fixed sleeve. The pair of clamping plates are respectively fixedly provided on both sides of the bottom of the fixed sleeve. The rotating shaft rod is arranged between the pair of clamping plates and is rotatably connected to the pair of clamping plates at both ends through rotating bearings. The gear is fixedly provided on the rotating shaft rod and is meshed with the rack at the bottom of the sliding rod.

[0017] Preferably, the driving member is any one of a cylinder, an electric cylinder or a hydraulic cylinder.

[0018] Preferably, an access door is provided on one side of the housing main body, and a step is provided on one side of the housing base and is arranged to cooperate with the access door.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] When the present utility model is in use, the second connecting member is driven by the driving member, and then a sliding rod connected to the second connecting member is driven to move. Then, through the transmission of the connecting rod, a sliding rod drives another sliding rod to move. Then, through a pair of first connecting members and a connecting plate arranged between the pair of first connecting members for transmission, the two sliding rods move synchronously. At the same time, the movement of the two sliding rods is transmitted to the expansion unit through the connecting plate, so that the expansion unit can slide in the installation window on the housing main body, thereby achieving the expansion and contraction effects of the house. The present utility model can quickly translate and expand the usable area of the house, and does not require manual and cumbersome installation operations, solving the problems of complex expansion process and long expansion time existing in the construction of current mobile houses. At the same time, it solves the problems of small area and poor living experience existing in the use of current mobile houses. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a translational sliding type expansion structure described in an embodiment of the present utility model;

[0022] Figure 2 is a schematic structural diagram of a translational sliding type expansion structure during expansion in an embodiment of the present utility model;

[0023] Figure 3 is a schematic structural diagram of a translational sliding type expansion structure during single-sided expansion in an embodiment of the present utility model;

[0024] Figure 4It is a schematic diagram of a partial structure of a translational sliding expansion structure described in an embodiment of the present utility model Figure 1 ;

[0025] Figure 5 It is a schematic diagram of a partial structure of a translational sliding expansion structure described in an embodiment of the present utility model Figure 2 ;

[0026] Figure 6 It is a schematic diagram of a partial structure of a translational sliding expansion structure described in an embodiment of the present utility model Figure 3 ;

[0027] Figure 7 It is a schematic diagram of a partial structure of a translational sliding expansion structure described in an embodiment of the present utility model Figure 4 ;

[0028] Figure 8 It is a schematic diagram of a structure of a pair of expansion driving units described in an embodiment of the present utility model Figure 1 ;

[0029] Figure 9 It is a schematic diagram of a structure of a pair of expansion driving units described in an embodiment of the present utility model Figure 2 ;

[0030] Figure 10 It is a schematic diagram of a partial enlarged structure of an expansion driving unit described in an embodiment of the present utility model Figure 1 ;

[0031] Figure 11 It is a schematic diagram of a partial enlarged structure of an expansion driving unit described in an embodiment of the present utility model Figure 2 ;

[0032] Figure 12 It is a schematic diagram of a partial enlarged structure of an expansion driving unit described in an embodiment of the present utility model Figure 3 ;

[0033] Figure 13 It is a schematic diagram of a partial enlarged structure of an expansion driving unit described in an embodiment of the present utility model Figure 4 ;

[0034] Explanation of reference numerals:

[0035] 10 - House base, 100 - Sliding groove, 101 - Installation groove, 20 - House main body, 200 - Installation window, 201 - Entrance door, 202 - Steps, 30 - Expansion unit, 300 - Bottom plate, 301 - Side plate, 302 - Top plate, 303 - Front panel, 40 - Expansion drive unit, 400 - Driving part, 401 - Connecting rod, 402 - Sliding rod, 403 - First connecting part, 404 - Connecting plate, 405 - Second connecting part, 406 - Connecting sleeve, 407 - L-shaped fixing plate, 408 - Adjusting bolt, 409 - Foot pad, 410 - Installation sleeve, 411 - Connecting block, 412 - Threaded connecting rod, 413 - Limiting sleeve, 414 - Locking nut, 415 - Fixing groove, 416 - Pulley, 417 - Rack, 418 - Rotating fitting, 419 - Fixing sleeve, 420 - Rotating shaft rod, 421 - Gear, 422 - Clamping plate, 423 - Rotating bearing. Detailed implementation mode

[0036] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0037] Embodiment:

[0038] As Figures 1 to 9 shown, in order to solve the above problems, this embodiment discloses a translation and sliding type expansion structure, including a house base 10, a house main body 20, a pair of expansion units 30 and a pair of expansion drive units 40. The house main body 20 is fixedly arranged on the house base 10. An installation window 200 penetrating through both sides of the house main body 20 is provided on the house main body 20. A pair of expansion units 30 are arranged in the installation window 200 and are slidably connected to the house main body 20. A pair of expansion drive units 40 are respectively arranged on both sides of the house base 10 and are respectively cooperated with a pair of expansion units 30 for driving the expansion units 30;

[0039] The expansion drive unit 40 includes a driving part 400, a connecting rod 401, a pair of sliding rods 402 and a pair of first connecting parts 403. A pair of sliding grooves 100 cooperated with the pair of sliding rods 402 are provided on the house base 10. One end of the sliding rod 402 is arranged in the sliding groove 100 and is slidably connected to the sliding groove 100. A pair of first connecting parts 403 are respectively arranged at the other ends of the pair of sliding rods 402 and are detachably connected to the sliding rods 402. The connecting rod 401 is arranged between the pair of first connecting parts 403 and is detachably connected to the pair of first connecting parts 403 at both ends;

[0040] A connecting plate 404 is provided between a pair of first connecting members 403. The two ends of the connecting plate 404 are respectively detachably connected to the pair of first connecting members 403. The pair of first connecting members 403 can be detachably connected to the bottom of the expansion unit 30 through the connecting plate 404. An installation groove 101 is provided on the housing base 10 and is arranged in cooperation with the driving member 400. The driving member 400 is arranged in the installation groove 101, and the output end of the driving member 400 is detachably connected to one end of one of the sliding rods 402 through a second connecting member 405.

[0041] When the present utility model is in use, the driving member 400 drives the second connecting member 405, thereby driving the movement of one sliding rod 402 connected to the second connecting member 405. Then, through the transmission of the connecting rod 401, the movement of one sliding rod 402 drives the movement of the other sliding rod 402. Then, through the transmission of the pair of first connecting members 403 and the connecting plate 404 arranged between the pair of first connecting members 403, the two sliding rods 402 move synchronously. At the same time, the movement of the two sliding rods 402 is transmitted to the expansion unit 30 through the connecting plate 404, so that the expansion unit 30 can slide in the installation window 200 on the housing main body 20, thereby achieving the expansion and contraction effects of the house. The present utility model can quickly translate and expand the usable area of the house, without the need for laborious installation operations by workers, solving the problems of complex expansion process and long expansion time existing in the construction of current mobile houses. At the same time, it solves the problems of small area and poor living experience existing in the use of current mobile houses.

[0042] At the same time, the present utility model can avoid the complex expansion steps by workers and can effectively avoid the problem of possible personal injuries during the construction process.

[0043] Through the present utility model, complex expansion operations can be avoided, the living experience can be improved, and personalized needs such as the comprehensive utilization of diverse variable spaces can be satisfied.

[0044] The expansion unit 30 in the present utility model can be retracted into the housing main body 20 without occupying additional space, thereby ensuring the beauty of the appearance of the present utility model. At the same time, since the present utility model can quickly translate and expand the usable area of the house, it is applicable to a variety of application scenarios, such as temporary residence, office, or entertainment space, etc.

[0045] Such as Figure 7As shown, the expansion unit 30 should at least include a bottom plate 300, two side plates 301, a top plate 302 and a front panel 303. The two side plates 301 are fixedly arranged between the bottom plate 300 and the top plate 302, and are respectively perpendicular to the top plate 302 and the bottom plate 300, located at both ends of the bottom plate 300 and the top plate 302. The front panel 303 is fixedly arranged on one side of the bottom plate 300, the two side plates 301 and the top plate 302. Among them, the side without the front panel 303 is in an open shape, and this side is located on the side close to the housing main body 20, so as to communicate with the internal space of the housing main body 20 to form a larger usable space.

[0046] The bottom plate 300 and the inner side surface of the bottom of the housing main body 20 can be slidably connected through a sliding track, or can be directly slidably connected. It can be set according to actual needs.

[0047] The specific shape of the housing main body 20 and the shapes of the bottom plate 300, the side plates 301, the top plate 302 and the front panel 303 in the expansion unit 30 should be set in cooperation to ensure that a fit can be formed between the expansion unit 30 and the housing main body 20. When in the storage state, the expansion unit 30 can be completely retracted into the housing main body 20. As Figures 1 - 7 shown.

[0048] As Figure 10 shown, in order to facilitate the support of the expansion unit 30 and thus increase the stability during use, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the first connecting member 403 includes a connecting sleeve 406 and an L-shaped fixing plate 407. The connecting sleeve 406 is fixedly arranged on one side of the L-shaped fixing plate 407. The connecting sleeve 406 can be sleeved on the end of the sliding rod 402 and is detachably connected to the sliding rod 402 through a bolt.

[0049] During use, the setting of the first connecting member 403 and the connecting plate 404 can facilitate the connection and transmission of the sliding rod 402 and the expansion unit 30. At the same time, the setting of the connecting plate 404 can make the transmission between the two sliding rods 402 have better synchronism.

[0050] Among them, an adjusting bolt 408 is provided on the L-shaped fixing plate 407. One end of the adjusting bolt 408 penetrates through the L-shaped fixing plate 407 and is threadedly connected to the L-shaped fixing plate 407. A foot pad 409 is provided at the end of the adjusting bolt 408, and the foot pad 409 is arranged at the end of the adjusting bolt 408 in contact with the ground.

[0051] By setting the adjusting bolt 408 and the foot pad 409, after the expansion unit 30 is expanded, by rotating the adjusting bolt 408, the foot pad 409 is brought into contact with the ground, so as to play a supporting role for the expansion unit 30, thereby increasing the stability of the expansion unit 30 during use.

[0052] Among them, both ends of the connecting plate 404 are detachably connected to the L-shaped fixing plates 407 in a pair of first connectors 403 through bolts, and the top of the L-shaped fixing plate 407 is fixedly connected to the bottom of the expansion unit 30.

[0053] Both ends of the connecting plate 404 are detachably connected to the L-shaped fixing plates 407 in a pair of first connectors 403 through bolts, which can facilitate the installation between the expansion unit 30 and the first connector 403, and at the same time facilitate the installation between the expansion unit 30 and the sliding rod 402.

[0054] As Figure 11 shown, in order to facilitate driving the sliding rod 402 and ensure that the expansion unit 30 can retract in place, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the second connector 405 includes a mounting sleeve 410, a connecting block 411, a threaded connecting rod 412 and a limiting sleeve 413. The mounting sleeve 410 is fixedly arranged on the sliding rod 402 and is located on one side of the first connector 403. The connecting block 411 is fixedly arranged on one side of the mounting sleeve 410. One end of the threaded connecting rod 412 is fixedly connected to the output end of the driving member 400, and the other end passes through the connecting block 411 and is in clearance fit with the connecting block 411. A pair of locking nuts 414 are sleeved on the threaded connecting rod 412. The pair of locking nuts 414 are respectively located on both sides of the connecting block 411 and are used to lock the connecting block 411 and the threaded connecting rod 412. The limiting sleeve 413 is arranged on the threaded connecting rod 412 and is threadedly connected to the threaded connecting rod 412.

[0055] During use, by locking the threaded connecting rod 412 and the connecting block 411 with a pair of locking nuts 414, it can facilitate the connection between the driving member 400 and the connecting block 411. At the same time, by setting the limiting sleeve 413 with adjustable position, it can facilitate determining the maximum retracted position of the expansion unit 30, so that the expansion unit 30 can be better stored in the house main body 20.

[0056] As Figure 12 shown, in order to make the sliding of the sliding rod 402 more stable and at the same time increase the stability when the sliding rod 402 supports the expansion unit 30, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the end of the sliding rod 402 located inside the sliding groove 100 is provided with a fixing groove 415. The fixing groove 415 penetrates through the sliding rod 402. Two groups of pulleys 416 are arranged in the fixing groove 415. The pulleys 416 are rotatably connected to the fixing groove 415. Among them, one group of pulleys 416 is arranged on the upper side of the fixing groove 415 and is in contact with the top side wall of the sliding groove 100, and the other group of pulleys 416 is arranged on the lower side of the fixing groove 415 and is in contact with the bottom side wall of the sliding groove 100. The two groups of pulleys 416 are arranged staggeredly.

[0057] As Figure 11As shown in the figure, a rack 417 is provided at the bottom of one end of the sliding rod 402 located inside the sliding groove 100. A number of rotation fitting members 418 that cooperate with the rack 417 on the sliding rod 402 are provided on the housing base 10. The rotation fitting members 418 are used to stably slide the sliding rods 402 in the two expansion drive units 40.

[0058] As Figure 13 shown in the figure, the rotation fitting member 418 includes a fixed sleeve 419, a rotating shaft rod 420, a gear 421 and a pair of clamping plates 422. The fixed sleeve 419 is provided on the housing base 10 and is arranged in cooperation with the sliding groove 100. One end of the sliding rod 402 can pass through the fixed sleeve 419 and is slidably connected to the fixed sleeve 419. The pair of clamping plates 422 are respectively fixedly provided on both sides of the bottom of the fixed sleeve 419. The rotating shaft rod 420 is arranged between the pair of clamping plates 422, and both ends are rotatably connected to the pair of clamping plates 422 through rotating bearings 423. The gear 421 is fixedly provided on the rotating shaft rod 420 and is engaged with the rack 417 at the bottom of the sliding rod 402.

[0059] During use, the setting of the pulley 416 can make the sliding between the sliding rods 402 smoother and more stable. The setting of the gear 421 and the rack 417 can facilitate the more synchronous sliding between the two sliding rods 402. At the same time, the gear 421 plays a certain supporting role for the sliding rod 402, which cooperates with the supporting role of the pulley 416, so as to increase the stability of the sliding rod 402 when supporting the expansion unit 30.

[0060] In the above embodiment, the driving member 400 can adopt any one of a cylinder, an electric cylinder or a hydraulic cylinder in the prior art that can achieve the functions of the present invention.

[0061] As Figure 5 shown in the figure, for the convenience of using the present invention, an access door 201 is provided on one side of the housing main body 20, and a step 202 that cooperates with the access door 201 is provided on one side of the housing base 10.

[0062] The setting of the access door 201 and the step 202 can facilitate the use of the present invention.

[0063] The working principle of the present invention:

[0064] When the utility model is in use, a driving member 400 drives a second connecting member 405, thereby driving the movement of a sliding rod 402 connected to the second connecting member 405. Then, through the transmission of a connecting rod 401, the movement of one sliding rod 402 drives the movement of another sliding rod 402. Then, through the transmission of a pair of first connecting members 403 and a connecting plate 404 arranged between the pair of first connecting members 403, the two sliding rods 402 move synchronously. At the same time, the movement of the two sliding rods 402 is transmitted to the expansion unit 30 through the connecting plate 404, so that the expansion unit 30 can slide in the installation window 200 on the housing main body 20, thereby achieving the expansion and contraction effects of the house. The utility model can quickly translate and expand the usable area of the house without cumbersome installation operations by manual labor.

[0065] The above embodiments only represent the specific implementation manners of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the utility model.

Claims

1. A translational sliding expansion structure, characterized in that: The invention comprises a house base (10), a house body (20), a pair of expansion units (30) and a pair of expansion drive units (40); the house body (20) is fixedly arranged on the house base (10); an installation window (200) is provided on the house body (20) and runs through both sides of the house body (20); the pair of expansion units (30) are arranged in the installation window (200) and are slidably connected to the house body (20); and the pair of expansion drive units (40) are respectively arranged on both sides of the house base (10) and are respectively arranged in cooperation with the pair of expansion units (30) to drive the expansion units (30); The expansion drive unit (40) comprises a drive member (400), a connecting rod (401), a pair of sliding rods (402) and a pair of first connecting members (403); a pair of sliding grooves (100) matched with the pair of sliding rods (402) are provided on the house base (10); one end of the sliding rod (402) is arranged in the sliding groove (100) and is slidably connected to the sliding groove (100); a pair of first connecting members (403) are respectively arranged at the other ends of the pair of sliding rods (402) and are detachably connected to the sliding rods (402); the connecting rod (401) is arranged between the pair of first connecting members (403) and has two ends detachably connected to the pair of first connecting members (403); A connecting plate (404) is provided between the pair of first connecting members (403), and both ends of the connecting plate (404) are detachably connected to the pair of first connecting members (403), and the pair of first connecting members (403) can be detachably connected to the bottom of the expansion unit (30) through the connecting plate (404). A mounting groove (101) matched with the driving member (400) is provided on the house base (10), and the driving member (400) is arranged in the mounting groove (101), and the output end of the driving member (400) is detachably connected to one end of one of the sliding rods (402) through the second connecting member (405).

2. The translation and sliding expansion structure according to claim 1, characterized in that: The first connecting member (403) comprises a connecting sleeve (406) and an L-shaped fixing plate (407). The connecting sleeve (406) is fixedly arranged on one side of the L-shaped fixing plate (407). The connecting sleeve (406) can be sleeved on the end of the sliding rod (402) and is detachably connected to the sliding rod (402) via bolts.

3. The translational sliding expansion structure according to claim 2, characterized in that: An adjusting bolt (408) is provided on the L-shaped fixing plate (407), one end of the adjusting bolt (408) passes through the L-shaped fixing plate (407) and is threadedly connected to the L-shaped fixing plate (407), and a foot pad (409) is provided at the end of the adjusting bolt (408), and the foot pad (409) is arranged at the end of the adjusting bolt (408) that contacts the ground.

4. A translation sliding expansion structure according to claim 2 or 3, characterized in that: The two ends of the connecting plate (404) are respectively detachably connected to the L-shaped fixing plates (407) in a pair of first connecting members (403) by bolts, and the top of the L-shaped fixing plate (407) is fixedly connected to the bottom of the expansion unit (30).

5. The translational sliding expansion structure according to claim 4, characterized in that: The second connecting member (405) comprises a mounting sleeve (410), a connecting block (411), a threaded connecting rod (412) and a limiting sleeve (413). The mounting sleeve (410) is fixedly arranged on the sliding rod (402) and is located on one side of the first connecting member (403). The connecting block (411) is fixedly arranged on one side of the mounting sleeve (410). One end of the threaded connecting rod (412) is fixedly connected to the output end of the driving member (400), and the other end passes through the connecting block (411) and is loosely matched with the connecting block (411). A pair of locking nuts (414) are sleeved on the threaded connecting rod (412). The pair of locking nuts (414) are respectively located on both sides of the connecting block (411) and are used to lock the connecting block (411) and the threaded connecting rod (412). The limiting sleeve (413) is arranged on the threaded connecting rod (412) and is threadedly connected to the threaded connecting rod (412).

6. The translational sliding expansion structure according to claim 5, characterized in that: A fixed groove (415) is provided at the end of the sliding rod (402) located in the sliding groove (100), and the fixed groove (415) passes through the sliding rod (402). Two groups of pulleys (416) are provided in the fixed groove (415), and the pulleys (416) are rotatably connected to the fixed groove (415), wherein one group of pulleys (416) is arranged on the upper side of the fixed groove (415) and contacts the top side wall of the sliding groove (100), and the other group of pulleys (416) is arranged on the lower side of the fixed groove (415) and contacts the bottom side wall of the sliding groove (100), and the two groups of pulleys (416) are arranged alternately.

7. The translational sliding expansion structure according to claim 6, characterized in that: A rack (417) is provided at the bottom of one end of the sliding rod (402) located in the sliding groove (100), and a plurality of rotating matching parts (418) are provided on the house base (10) to match the rack (417) on the sliding rod (402). The rotating matching parts (418) are used to enable the sliding rods (402) in the two expansion drive units (40) to slide stably.

8. The translational sliding expansion structure according to claim 7, characterized in that: The rotating matching member (418) comprises a fixed sleeve (419), a rotating shaft (420), a gear (421) and a pair of clamping plates (422). The fixed sleeve (419) is arranged on the housing base (10) and is arranged in cooperation with the sliding groove (100). One end of the sliding rod (402) can pass through the fixed sleeve (419) and is slidably connected with the fixed sleeve (419). The pair of clamping plates (422) are respectively fixedly arranged on both sides of the bottom of the fixed sleeve (419). The rotating shaft (420) is arranged between the pair of clamping plates (422), and the two ends are respectively rotatably connected with the pair of clamping plates (422) through rotating bearings (423). The gear (421) is fixedly arranged on the rotating shaft (420) and is meshed with the rack (417) at the bottom of the sliding rod (402).

9. The translational sliding expansion structure according to claim 1, characterized in that: The driving member (400) is any one of a pneumatic cylinder, an electric cylinder or a hydraulic cylinder.

10. The translational sliding expansion structure according to claim 1, characterized in that: An entrance door (201) is provided on one side of the house body (20), and a step (202) is provided on one side of the house base (10) and is arranged in coordination with the entrance door (201).

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