Ladder for ventilation support in deep and narrow archaeological environment

Abstract

The utility model provides a ladder for ventilation support in a deep and narrow archaeological environment, which belongs to the technical field of support instruments, and comprises a first double vertical rod, an expansion mechanism is arranged on a rod body of the first double vertical rod, the expansion mechanism comprises a first sleeve frame, a telescopic rod, a double-shaft cylinder and a second sleeve frame, the first sleeve frame is sleeved and fixed on the rod body of the first double vertical rod, and the telescopic rod is sleeved and fixed on the second sleeve frame. The trepanning steps, the solid steps and the cavity steps are alternately arranged between the opposite faces of the first sleeve frame from top to bottom, the telescopic rods are inserted into the side portions of the trepanning steps, the double-shaft air cylinders are arranged in the cavity steps, and the second sleeve frame is fixedly connected to the ends of the telescopic rods. By arranging the expansion mechanism, the ladder with a single structure can be conveniently and transversely expanded on the two sides, the ladder can be firmly supported on the two sides of a pit wall through transverse expansion, a more stable climbing platform is provided, and the ladder capable of being transversely expanded can be contracted to a smaller size when not used, so that the ladder is convenient to carry and transport.

Description

TECHNICAL FIELD

[0001] The utility model relates to support instrument technical field, concretely is a ladder for deep narrow archaeological environment ventilation support. BACKGROUND

[0002] Archaeological environment ventilation is the air circulation management measure carried out in the archaeological excavation site and the places of cultural relic storage and protection, and the humidity in the archaeological excavation site and the cultural relic storage environment is crucial to the preservation of cultural relics, good ventilation can help to reduce air humidity, reduce the damage such as corrosion and mildew of cultural relics due to dampness, and ventilation can adjust the environmental temperature to a certain extent to avoid the damage of temperature fluctuation to cultural relics.

[0003] The existing archaeological ladder generally only has the telescopic function in the up-down direction, and when facing a deep narrow archaeological environment, if the horizontal length of the ladder cannot be adjusted, it is difficult to adapt to different spaces, the archaeological environment is complex and various, and the deep narrow space often has specific size requirements, if the horizontal length of the ladder cannot be adjusted, it may not match the width of the archaeological pit, and when the external structure is used to exert horizontal telescopic function, the bottom structure directly contacts the bottom surface, so that a considerable degree of activity obstruction is caused during telescopic operation. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a ladder for deep narrow archaeological environment ventilation support which overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is realized as follows:

[0006] The utility model provides a ladder for deep narrow archaeological environment ventilation support, which comprises a first double vertical rod, and an expansion mechanism is arranged on the rod body of the first double vertical rod.

[0007] The expansion mechanism comprises:

[0008] A first sleeve frame is fixedly connected to the rod body of the first double vertical rod, and a perforated step, a solid step and a cavity step are alternately arranged between the opposite surfaces of the first sleeve frame from top to bottom.

[0009] A telescopic rod is inserted into the side of the perforated step.

[0010] A double-shaft air cylinder is arranged in the cavity step.

[0011] A second sleeve frame is fixedly connected to the end of the telescopic rod, a second double vertical rod is sleeved in the second sleeve frame, a ventilation opening is arranged in the front bottom of the second double vertical rod, and a fan is arranged on the top of the second double vertical rod.

[0012] In an embodiment of the utility model, the top of second double vertical rod is fixedly connected with first mounting plate, the board body of first mounting plate is inserted with plug rod, the top of plug rod is equipped with fan, the input side of fan is equipped with air pipe, air pipe penetrates first mounting plate and extends to the inside of second double vertical rod.

[0013] In an embodiment of the utility model, the output end of double-shaft air cylinder is equipped with driving rod, and the opposite side of second sleeve frame is fixedly connected with driving rod.

[0014] In an embodiment of the utility model, the bottom of solid step is equipped with lifting mechanism, the top of second mounting plate is fixedly connected with placing groove, and the recess of placing groove is mutually clamped with solid step.

[0015] In an embodiment of the utility model, the bottom of second mounting plate is fixedly connected with outer sleeve tube, the bottom of outer sleeve tube is inserted with inner sleeve tube, the pipe body of inner sleeve tube is fixedly inserted with first penetrating shaft and second penetrating shaft, the shaft body both ends of first penetrating shaft are movably inserted with first deflection plate, and the shaft body both ends of second penetrating shaft are movably inserted with second deflection plate.

[0016] In an embodiment of the utility model, one side between the board body of first deflection plate is fixedly connected with first pedal, and one side between the board body of second deflection plate is fixedly connected with second pedal.

[0017] In an embodiment of the utility model, one side of the board body of first deflection plate is fixedly connected with third mounting plate, the second connecting shaft is fixedly connected between third mounting plate, the front and rear top of first deflection plate is equipped with damping pivot, the upper side of first deflection plate is movably equipped with limiting plate through damping pivot, the front and rear side of limiting plate is equipped with shaft pedestal through movable shaft, and the top of limiting plate is connected with the bottom of second mounting plate through shaft pedestal.

[0018] In an embodiment of the utility model, one end of second deflection plate is movably equipped with first connecting block through movable shaft, the first connecting shaft is movably equipped between first connecting block, first connecting block is movably connected with inner sleeve tube through first connecting shaft, one end of first connecting block is fixedly connected with second connecting block, and the end of second connecting block is movably overlapped with second connecting shaft.

[0019] The utility model provides a ladder for deep narrow archaeological environment ventilation support, and its beneficial effects include:

[0020] 1. By setting the expansion mechanism, it is convenient to expand the ladder with single structure laterally on both sides. Through lateral expansion, the ladder can be firmly supported on both sides of the pit wall to provide a more stable climbing platform. The laterally expandable ladder can be shrunk to a smaller size when not in use, facilitating carrying and transportation. As the archaeological work advances, new excavation areas may be encountered or entry into different shaped spaces may be required. The lateral expansion can be performed at any time according to the needs, providing a convenient passage for the archaeologists, without the need to frequently replace ladders of different specifications.

[0021] 2. By setting the lifting mechanism, for the ladder with expandable width length on both sides, when the cylinder is used to extend and retract the expansion structure on both sides, it is convenient to slightly lift the ladder as a whole. At this time, the bottom of the ladder will be away from the ground, giving the device moving parts reasonable space to move, preventing the device from being located on the ground during movement, which causes movement obstacles. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 is a schematic view of the expansion mechanism structure provided by the embodiments of the present application;

[0024] Figure 2 is a perspective view of the expansion mechanism structure provided by the embodiments of the present application;

[0025] Figure 3 is a lifting mechanism provided by the embodiments of the present application;

[0026] Figure 4 is a lifting mechanism provided by the embodiments of the present application.

[0027] In the figure: 1, the first double vertical rod; 2, the expansion mechanism; 2001, the first set of frame; 201, the open hole step; 202, the solid step; 203, the cavity step; 2031, the telescopic rod; 204, the double shaft air cylinder; 2041, the driving rod; 205, the second double vertical rod; 2051, the air vent; 2052, the first mounting plate; 2053, the plug rod; 2054, the fan; 2055, the air pipe; 206, the second set of frame; 3, the lifting mechanism; 301, the second mounting plate; 3011, the shaft base; 302, the placing groove; 303, the outer sleeve tube; 304, the inner sleeve tube; 305, the first through shaft; 306, the second through shaft; 307, the first deflection plate; 3071, the third mounting plate; 3072, the first pedal; 3073, the damping rotating shaft; 308, the limiting plate; 309, the second deflection plate; 3091, the second pedal; 310, the first connecting block; 3101, the first connecting shaft; 311, the second connecting block; 312, the second connecting shaft. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] EMBODIMENT

[0030] WITH REFERENCE Figures 1-4The technical scheme provides a ladder for ventilation support in a deep and narrow archaeological environment, wherein the ladder comprises a first double vertical rod 1, and an expansion mechanism 2 is arranged on the rod body of the first double vertical rod 1; the expansion mechanism 2 comprises a first sleeve frame 2001, a telescopic rod 2031, a double-shaft air cylinder 204 and a second sleeve frame 206, is sleeved and fixed on the rod body of the first double vertical rod 1, and alternatingly arranged from top to bottom between opposite surfaces of the first sleeve frame 2001 are an open hole step 201, a solid step 202 and a cavity step 203; the telescopic rod 2031 is inserted into the side of the open hole step 201; the double-shaft air cylinder 204 is arranged in the cavity step 203; the second sleeve frame 206 is fixedly connected to the end of the telescopic rod 2031; and a second double vertical rod 205 is sleeved in the second sleeve frame 206, a ventilation opening 2051 is arranged at the front bottom of the second double vertical rod 205, and a fan 2054 is arranged at the top of the second double vertical rod 205. By arranging the expansion mechanism 2, the ladder with a single structure can be expanded laterally on both sides. Through lateral expansion, the ladder can be firmly supported on both sides of the pit wall, a more stable climbing platform is provided, the ladder can be shrunk to a smaller size when not in use, and the ladder is convenient to carry and transport. With the advancement of archaeological work, new excavation areas or spaces with different shapes may be encountered, the ladder can be laterally expanded at any time according to requirements, a convenient channel is provided for the archaeologists, and different specifications of ladders need not to be frequently replaced.

[0031] Referring to Figures 1-4 , based on the same concept as in the above embodiment 1, the top of the second double vertical rod 205 is fixedly connected with a first mounting plate 2052, a plug rod 2053 is inserted into the plate body of the first mounting plate 2052, the top of the plug rod 2053 is provided with the fan 2054, the input side of the fan 2054 is provided with an air pipe 2055, the air pipe 2055 penetrates through the first mounting plate 2052 and extends into the second double vertical rod 205, the fan 2054 can be lifted and placed on the ground, at this time, the air pipe 2055 moves in the second double vertical rod 205, and the fan 2054 can work to extract various gases in the archaeological environment through the ventilation opening 2051.

[0032] Referring to Figures 1-4 , based on the same concept as in the above embodiment 1, the output end of the double-shaft air cylinder 204 is provided with a driving rod 2041, the driving rod 2041 is fixedly connected with the opposite side of the second sleeve frame 206. If a plurality of air cylinders are used, the operation may not be synchronized due to environmental influences, for example, if the output shaft telescopic movement of one air cylinder is blocked by dust and dirt, the three air cylinders work asynchronously and cause telescopic obstacles. The device only has one air cylinder structure, and is combined with the telescopic rod 2031 for lateral expansion. There is a gap between the telescopic rods 2031. Even if there is dust and dirt, the offset of the side structure does not matter. Finally, the device side mechanism automatically realizes stable lapping after abutting against the side of the archaeological site channel.

[0033] With reference to Figures 1-4 , based on the same idea as in the above embodiment 1, the bottom of the solid step 202 is provided with a lifting mechanism 3, which comprises a second mounting plate 301, the top of which is fixedly connected with a placing groove 302, the recess of which is clamped with the solid step 202. By setting the lifting mechanism 3, for the ladder with expandable width on both sides, when the cylinder is used to expand the structure on both sides, the ladder can be slightly lifted as a whole, at this time the bottom of the ladder will be away from the ground, giving the device a reasonable space for movement, preventing the device from being located on the ground during movement.

[0034] With reference to Figures 1-4 , based on the same idea as in the above embodiment 1, the bottom of the second mounting plate 301 is fixedly connected with the outer sleeve 303, the bottom of which is inserted with the inner sleeve 304, the pipe body of which is fixedly inserted with the first through shaft 305 and the second through shaft 306, the both ends of the shaft body of the first through shaft 305 are movably inserted with the first deflection plate 307, and the both ends of the shaft body of the second through shaft 306 are movably inserted with the second deflection plate 309.

[0035] With reference to Figures 1-4 , based on the same idea as in the above embodiment 1, the one side between the plate bodies of the first deflection plate 307 is fixedly connected with the first pedal 3072, and the one side between the plate bodies of the second deflection plate 309 is fixedly connected with the second pedal 3091, so as to facilitate the operator to directly operate the foot pedal without squatting.

[0036] With reference to Figures 1-4 , based on the same idea as in the above embodiment 1, the one side of the plate body of the first deflection plate 307 is fixedly connected with the third mounting plate 3071, the second connecting shaft 312 is fixedly connected between the third mounting plates 3071, the front and rear top ends of the first deflection plate 307 are provided with the damping rotation shaft 3073, the upper side of the first deflection plate 307 is movably provided with the limiting plate 308 through the damping rotation shaft 3073, the front and rear sides of the limiting plate 308 are provided with the shaft table 3011 through the movable shaft, the top of the limiting plate 308 is connected with the bottom of the second mounting plate 301 through the shaft table 3011, the second pedal 3091 is stepped on, one side of the second deflection plate 309 is moved upward, at this time one end of the first connecting block 310 moves upward, while the second connecting block 311 fixedly connected with the other end of the second connecting block 311 moves upward at one end and downward at the other end, finally the second connecting block 311 moves the second connecting shaft 312 downward at one side, and then the bottom of the limiting plate 308 is moved to the other side, and the limiting plate 308 is released from the limiting state.

[0037] Referring to Figures 1-4 , based on the same idea as in the above embodiment 1, this embodiment also proposes that one end of the second deflection plate 309 passes through the movable shaft with the first connecting block 310, the first connecting block 310 is movably provided with the first connecting shaft 3101 between them, the first connecting block 310 is movably connected with the inner sleeve 304 through the first connecting shaft 3101, one end of the first connecting block 310 is fixedly connected with the second connecting block 311, and the end of the second connecting block 311 is movably overlapped with the second connecting shaft 312.

[0038] Specifically, the working process or working principle of the ladder for supporting ventilation in deep and narrow archaeological environment is as follows: in use, first place the expansion mechanism 2 of the device on the ground surface in the archaeological environment, then place the lifting mechanism 3 under the horizontal step of the ladder part, step on the first pedal 3072 with the foot for the first time, so that the other end of the first deflection plate 307 approaches the outer sleeve 303 under the action of the first through shaft 305, at this time, under the action of the damping shaft 3073, the whole of the limiting plate 308 is first deflected to be on the same straight line with the upper half of the first deflection plate 307, then continue to deflect until it is overlapped with the outer sleeve 303, at this time, the limiting plate 308 and the upper half of the first deflection plate 307 have a moving angle and the bottom is blocked by the outer sleeve 303, which will not deflect back at the same time, and will also be limited by the outer sleeve 303, in general, the second mounting plate 301 together with the placement groove 302 is lifted up, at this time, the outer sleeve 303 moves upward, that is, the expansion mechanism 2 is considered as the structure of the device ladder part is lifted up, then drive the double-shaft air cylinder 204, the driving rod 2041 extends the second sleeve frame 206 together with the second double vertical rod 205, after the extension or shortening is completed, step on the second pedal 3091 again, one side of the second deflection plate 309 moves upward, at this time, one end of the first connecting block 310 moves upward, while the second connecting block 311 fixedly connected to the other end of the second connecting block 311 moves upward at one end and downward at the other end, finally the second connecting block 311 moves the second connecting shaft 312 downward to one side, that is, the bottom of the limiting plate 308 is moved to the other side, then the limiting plate 308 is in the un-limited state, and the outer sleeve 303 moves downward to release the ladder part.

[0039] It should be noted that the double-shaft air cylinder 204 is a device or equipment existing in the prior art, or a device or equipment that can be realized in the prior art, the power supply, specific composition and principle thereof are clear to those skilled in the art, and therefore will not be described in detail.

Claims

1. A ladder for ventilation support in deep and narrow archaeological environments, comprising a first pair of vertical rods (1), characterized in that: An expansion mechanism (2) is provided on the rod body of the first double vertical rod (1); The expansion mechanism (2) comprises: A first sleeve frame (2001) is sleeved and fixed on the rod body of the first double vertical rod (1), and open steps (201), solid steps (202) and cavity steps (203) are alternately provided between opposite surfaces of the first sleeve frame (2001) from top to bottom; A telescopic rod (2031), wherein the telescopic rod (2031) is plugged into a side portion of the perforated step (201); A double-axis cylinder (204), the double-axis cylinder (204) is arranged inside the cavity step (203); A second sleeve frame (206) is fixedly connected to the end of the telescopic rod (2031); a second double vertical rod (205) is sleeved in the second sleeve frame (206); a ventilation hole (2051) is provided at the front bottom of the second double vertical rod (205); and a fan (2054) is provided at the top of the second double vertical rod (205).

2. A ladder for ventilation support in a deep and narrow archaeological environment according to claim 1, characterized in that: The top of the second double vertical rod (205) is fixedly connected to a first mounting plate (2052), a plug rod (2053) is plugged into the plate body of the first mounting plate (2052), a fan (2054) is provided on the top of the plug rod (2053), an air duct (2055) is provided on the input side of the fan (2054), and the air duct (2055) passes through the first mounting plate (2052) and extends to the interior of the second double vertical rod (205).

3. A ladder for ventilation support in a deep and narrow archaeological environment according to claim 1, characterized in that: The output end of the dual-axis cylinder (204) is provided with a driving rod (2041), and the driving rod (2041) is fixedly connected to the opposite side of the second sleeve frame (206).

4. A ladder for ventilation support in a deep and narrow archaeological environment according to claim 1, characterized in that: A lifting mechanism (3) is provided at the bottom of the solid step (202), and the lifting mechanism (3) comprises a second mounting plate (301). The top of the second mounting plate (301) is fixedly connected with a placement groove (302), and the recessed portion of the placement groove (302) is mutually engaged with the solid step (202).

5. A ladder for ventilation support in a deep and narrow archaeological environment according to claim 4, characterized in that: The bottom of the second mounting plate (301) is fixedly connected to an outer sleeve (303), the bottom of the outer sleeve (303) is plugged with an inner sleeve (304), the tube body of the inner sleeve (304) is fixedly plugged with a first through-shaft (305) and a second through-shaft (306), both ends of the shaft body of the first through-shaft (305) are movably plugged with a first deflection plate (307), and both ends of the shaft body of the second through-shaft (306) are movably plugged with a second deflection plate (309).

6. A ladder for ventilation support in a deep and narrow archaeological environment according to claim 5, characterized in that: A first pedal (3072) is fixedly connected to one side between the plate bodies of the first deflection plate (307), and a second pedal (3091) is fixedly connected to one side between the plate bodies of the second deflection plate (309).

7. A ladder for ventilation support in a deep and narrow archaeological environment according to claim 5, characterized in that: A third mounting plate (3071) is fixedly connected to one side of the plate body of the first deflection plate (307), and a second connecting shaft (312) is fixedly connected between the third mounting plates (3071). A damping shaft (3073) is provided at the top of the front and rear parts of the first deflection plate (307). A limit plate (308) is movably provided above the first deflection plate (307) via the damping shaft (3073). A pillow block (3011) is provided on the front and rear sides of the limit plate (308) via a movable shaft. The top of the limit plate (308) is connected to the bottom of the second mounting plate (301) via the pillow block (3011).

8. The ladder for ventilation support in a deep and narrow archaeological environment according to claim 5, characterized in that: One end of the second deflection plate (309) is provided with a first connecting block (310) via a movable shaft, a first connecting shaft (3101) is movably provided between the first connecting blocks (310), the first connecting block (310) is movably connected to the inner sleeve (304) via the first connecting shaft (3101), one end of the first connecting block (310) is fixedly connected to a second connecting block (311), and an end portion of the second connecting block (311) is movably overlapped with the second connecting shaft (312).

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