Folding escalator for temporarily built accommodation room

Abstract

The utility model discloses a folding escalator for a temporarily-built accommodation room, and relates to the technical field of escalators. The folding escalator comprises a supporting assembly, a folding escalator assembly is arranged on one side of the supporting assembly, an inserting assembly is arranged between the folding escalator assembly and the supporting assembly, a limiting assembly is arranged at the inserting end of the inserting assembly, and a locking assembly is arranged on the outer side of the folding escalator assembly. The folding escalator assembly and the supporting assembly can be connected together through the inserting assembly, meanwhile, the limiting assembly enables the inserting end of the inserting assembly not to be separated from the supporting assembly, and the folding escalator assembly is installed mainly in an inserting mode. Therefore, when the folding escalator assembly is disassembled, the folding escalator assembly can be separated from the supporting assembly only by releasing limiting of the inserting end of the inserting assembly through the limiting assembly and then lifting the folding escalator assembly upwards, and the whole disassembling process is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of escalator, specifically, especially relates to a folding escalator for temporary housing. BACKGROUND

[0002] Temporary housing is a kind of temporary building for living.For the temporary housing with two or more floors, an escalator needs to be erected outside the housing to make it easier for people to enter the high-level housing through the escalator.

[0003] In the case of limited space of temporary housing, in order to save space, the escalator needs to be installed outside the housing, so a turning table is needed to support and fix the two escalators.When installing the escalator on the turning table, it is usually done with fixed bolts.When the escalator is in use, the fixed bolts will bear a large force, and both the fixed bolts and the escalator are exposed to the outside, so the fixed bolts are easily corroded by rain and deformed.This phenomenon makes it difficult to remove the fixed bolts from the turning table, making it difficult to disassemble the escalator.

[0004] For the problems in the related art, there is no effective solution at present. CONTENT OF THE UTILITY MODEL

[0005] To overcome the above technical problems existing in the prior art, the utility model provides a folding escalator for temporary housing.

[0006] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0007] The utility model is a kind of folding escalator for temporary housing, including support assembly, the one side of support assembly is provided with folding escalator assembly, folding escalator assembly and support assembly between being provided with the plug-in component, the plug-in end of plug-in component is provided with limiting component, the outside of folding escalator assembly is provided with locking assembly.

[0008] The locking assembly is used to lock the opened folding escalator assembly, the folding escalator assembly is inserted into the support assembly through the plug-in end of the plug-in assembly, so that the support assembly supports the folding escalator assembly, and the limiting assembly is used to limit the plug-in end of the plug-in assembly.

[0009] Further, the support assembly includes a turning table, a plurality of support legs are fixedly installed at the bottom of the turning table, and reinforcing ribs are fixedly installed between adjacent support legs.

[0010] Further, the folding escalator assembly comprises a first connecting plate and a second connecting plate, two of the first connecting plate and the second connecting plate are symmetrically arranged, a rotating groove is formed in the adjacent side of the first connecting plate and the second connecting plate, a rotating plate is rotatably connected in the rotating groove, a foot plate is fixedly connected to the inner side of the first connecting plate and the second connecting plate, and a handrail is fixedly installed on the top of the first connecting plate and the second connecting plate.

[0011] Further, the plug-in assembly comprises a placing groove formed in the top of the turning table, a plug-in groove is formed in the bottom of the placing groove, a plug-in block is movably connected in the plug-in groove, the plug-in block is fixedly connected with the uppermost foot plate of the second connecting plate, and the foot plate is movably connected with the placing groove.

[0012] Further, the limiting assembly comprises a receiving groove formed in one side of the plug-in block, a limiting block is movably connected in the receiving groove, a limiting plate is fixedly connected to the back surface of the limiting block, a guide rod is fixedly connected to the inner wall of the receiving groove, the limiting plate is movably connected with the guide rod, and a pushing groove is formed in the back surface of the receiving groove.

[0013] Further, a sliding cavity is formed in the bottom of the plug-in block, a sliding disc is movably connected in the sliding cavity, a sliding rod is fixedly connected to the bottom of the sliding disc, the bottom end of the sliding rod penetrates through the plug-in block and is fixedly connected with an L-shaped moving plate, limiting holes are formed in the bottom of the inner wall of the receiving groove, the limiting holes penetrate through the limiting plate, two limiting holes are formed corresponding to the limiting plate, limiting rods are movably connected in the limiting holes, the limiting rods are fixedly connected with the L-shaped moving plate, a handle is fixedly connected to the bottom of the L-shaped moving plate, and limiting springs are fixedly connected between the bottom of the sliding disc and the inner wall of the sliding cavity.

[0014] Further, the locking assembly comprises a locking frame arranged on the outer side of the first connecting plate and the second connecting plate, an L-shaped locking plate is movably connected in the locking frame, a locking hole is formed in one side of the L-shaped locking plate, the locking hole penetrates through the locking frame, a receiving cylinder is fixedly connected to one side of the locking frame corresponding to the locking hole, a locking rod is movably connected in the locking hole, a moving disc is fixedly connected to the outer surface of the locking rod, the moving disc is movably connected with the receiving cylinder, a locking spring is fixedly connected between one side of the moving disc and the inner wall of the receiving cylinder, and a pulling disc is fixedly connected to one end of the locking rod penetrating through the receiving cylinder.

[0015] The utility model has the following beneficial effects:

[0016] 1. The folding escalator assembly and the supporting assembly are connected together through the plug-in assembly, and the plug-in end of the plug-in assembly cannot be separated from the supporting assembly due to the limiting assembly. Since the folding escalator assembly is mainly installed through the plug-in mode, when the folding escalator assembly is disassembled, only the plug-in end of the plug-in assembly is limited by the limiting assembly, and then the folding escalator assembly is lifted upwards to separate the folding escalator assembly from the supporting assembly. The whole disassembly process is relatively convenient.

[0017] 2. The handle is pulled downwards to the L-shaped moving plate, so that the limiting rod does not limit the limiting plate, and then the limiting plate is pushed through the pushing groove, so that the limiting block can move out of the inside of the storage groove and limit the plug-in block. When the limiting block moves to the predetermined position, the handle is released. At this time, the limiting spring moves the limiting rod into the limiting hole on the limiting plate through the sliding disc, the sliding rod and the L-shaped moving plate, so that the limiting block limits the plug-in block. The above-mentioned setting makes the plug-in block not move out of the inside of the plug-in groove under the limiting of the limiting block, and only needs to pull the handle downwards when moving the limiting block. The operation is relatively convenient.

[0018] Of course, any product implementing the present utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced the drawings needed to be used for the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0020] Figure 1 It is the external contour structure schematic diagram of the utility model;

[0021] Figure 2 It is the turning table down view structure schematic diagram of the utility model;

[0022] Figure 3 It is the limiting assembly structure schematic diagram of the utility model;

[0023] Figure 4 It is the plug-in block sectional view structure schematic diagram of the utility model;

[0024] Figure 5 It is the Figure 4 A enlarged structure schematic diagram;

[0025] Figure 6The utility model discloses a folding escalator assembly structure schematic diagram.

[0026] Figure 7 The utility model discloses a connecting plate folding structure schematic diagram.

[0027] Figure 8 The utility model discloses a Figure 7 B place enlarged structure schematic diagram.

[0028] Figure 9 The utility model discloses a support assembly structure schematic diagram.

[0029] In the drawings, the component list that each sign represents is as follows:

[0030] 1, support assembly;101, turning table;102, support leg;103, reinforcing rib;2, folding escalator assembly;201, first connecting plate;202, second connecting plate;203, rotating groove;204, rotating plate;205, pedal;206, handrail;3, plug-in assembly;301, placing groove;302, plug-in groove;303, plug-in block;4, limiting assembly;401, storage groove;402, limiting block;403, limiting plate;404, guide rod;405, push groove;406, sliding cavity;407, sliding disc;408, sliding rod;409, L type moving plate;410, limiting hole;411, limiting rod;412, handle;413, limiting spring;5, locking assembly;501, locking frame;502, L type locking plate;503, locking hole;504, storage cylinder;505, locking rod;506, moving disc;507, locking spring;508, pull disc. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model protection.

[0032] In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "top", "middle", "inner" and the like indicate the orientation or positional relationship, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0033] Please refer to Figures 1-9The utility model discloses a folding escalator for temporary building lodging room, including support assembly 1, one side of support assembly 1 is provided with folding escalator assembly 2, and the folding escalator assembly 2 with support assembly 1 is provided with the plug-in component 3 between, and the plug-in end of plug-in component 3 is provided with the limiting component 4, and the outside of folding escalator assembly 2 is provided with locking assembly 5.

[0034] Locking assembly 5 is used for locking the folding escalator assembly 2 that opens, and the folding escalator assembly 2 is plugged into support assembly 1 through the plug-in end of plug-in component 3, so that support assembly 1 supports folding escalator assembly 2, and limiting component 4 is used for limiting the plug-in end of plug-in component 3.

[0035] When installing folding escalator assembly 2, open folding escalator assembly 2, then lock the opened folding escalator assembly 2 through locking assembly 5, then place the locked folding escalator assembly 2 on the top of support assembly 1, and make the plug-in end of plug-in component 3 penetrate support assembly 1, and finally limit the plug-in end of plug-in component 3 through limiting component 4.

[0036] By placing folding escalator assembly 2 on the top of support assembly 1, and making the plug-in end of plug-in component 3 move to the inside of support assembly 1, and limiting the plug-in end of plug-in component 3 through limiting component 4, so that the plug-in end of plug-in component 3 does not separate from support assembly 1, when installing folding escalator assembly 2, mainly through the plug-in mode to connect support assembly 1 and folding escalator assembly 2 together, the installation mode makes it only need to remove the limitation of the plug-in end of plug-in component 3 through limiting component 4 when disassembling folding escalator assembly 2, then lifting folding escalator assembly 2 upwards to separate folding escalator assembly 2 and support assembly 1, the whole disassembly process is relatively convenient.

[0037] In an embodiment, for the above-mentioned support assembly 1, the support assembly 1 includes a turntable 101, and a plurality of support legs 102 are fixedly installed at the bottom of the turntable 101, and a reinforcing rib 103 is fixedly installed between adjacent support legs 102.

[0038] The plurality of support legs 102 can support the turntable 101, so that the turntable 101 can support the folding escalator assembly 2. Meanwhile, the arrangement of the reinforcing rib 103 makes the connection of the plurality of support legs 102 more stable, so that the stability of the support legs 102 when supporting the turntable 101 can be guaranteed, and the turntable 101 can better support the folding escalator assembly 2.

[0039] In one embodiment, for the above-mentioned folding escalator assembly 2, the folding escalator assembly 2 comprises a first connecting plate 201 and a second connecting plate 202, the first connecting plate 201 and the second connecting plate 202 are symmetrically provided with two, the first connecting plate 201 and the second connecting plate 202 are provided with a rotating groove 203 on one side adjacent to each other, the rotating groove 203 is rotatably connected with a rotating plate 204 inside, the inner side of the first connecting plate 201 and the second connecting plate 202 is fixedly connected with a stepping plate 205, and the top of the first connecting plate 201 and the second connecting plate 202 is fixedly installed with a handrail 206.

[0040] By rotating the first connecting plate 201 and the second connecting plate 202, the rotating plate 204 can rotate inside the rotating groove 203 provided on the two rotating plates at this time, and the first connecting plate 201 and the second connecting plate 202 can be in a straight line, and then the first connecting plate 201 and the second connecting plate 202 in this state are locked by the locking assembly 5, so that the first connecting plate 201 and the second connecting plate 202 can be folded together. The arrangement of the first connecting plate 201 and the second connecting plate 202 can save a lot of space when they are transported. After the second connecting plate 202 is installed on the top of the turning table 101, the handrail 206 is installed on the first connecting plate 201, the second connecting plate 202 and the turning table 101.

[0041] In one embodiment, for the above-mentioned plug-in assembly 3, the plug-in assembly 3 comprises a placing groove 301, the placing groove 301 is provided on the top of the turning table 101, the bottom of the placing groove 301 is provided with a plug-in groove 302, the plug-in groove 302 is movably connected with a plug-in block 303 inside, the plug-in block 303 is fixedly connected with the stepping plate 205 on the uppermost side of the second connecting plate 202, and the stepping plate 205 is movably connected with the placing groove 301.

[0042] By placing the uppermost stepping plate 205 on the second connecting plate 202 inside the placing groove 301, the plug-in block 303 at the bottom of the stepping plate 205 can be directly moved into the plug-in groove 302, so that the second connecting plate 202 is connected with the turning table 101, and since the stepping plate 205 can support the second connecting plate 202 through the placing groove 301, the plug-in block 303 is not easy to deform when other stepping plates 205 bear a large force. When the stepping plate 205 is placed inside the placing groove 301, the top of the stepping plate 205 is flush with the top of the turning table 101, so that the turning table 101 supports the second connecting plate 202 through the stepping plate 205, and at the same time, the surface of the turning table 101 can remain flat.

[0043] In one embodiment, for the above-mentioned limiting assembly 4, the limiting assembly 4 comprises a receiving groove 401, which is opened on one side of the plug-in block 303, the inside of the receiving groove 401 is movably connected with a limiting block 402, the back of the limiting block 402 is fixedly connected with a limiting plate 403, the inner wall of the receiving groove 401 is fixedly connected with a guide rod 404, the limiting plate 403 is movably connected with the guide rod 404, and the back of the receiving groove 401 is provided with a pushing groove 405.

[0044] When the plug-in block 303 moves to the inside of the plug-in groove 302, the limiting plate 403 inside the receiving groove 401 is pushed through the pushing groove 405, so that the limiting plate 403 can move the limiting block 402 out of the inside of the receiving groove 401 and contact the bottom of the turning table 101, at this time, the plug-in block 303 is not easy to separate from the inside of the plug-in groove 302 under the limitation of the limiting block 402. The guide rod 404 can guide the moving limiting plate 403, so that the stability of the limiting plate 403 driving the limiting block 402 to move can be guaranteed, and the setting of the limiting plate 403 makes the limiting block 402 not easy to separate from the inside of the receiving groove 401.

[0045] In one embodiment, for the above-mentioned plug-in block 303, the bottom of the plug-in block 303 is provided with a sliding cavity 406, the inside of the sliding cavity 406 is movably connected with a sliding disc 407, the bottom of the sliding disc 407 is fixedly connected with a sliding rod 408, the bottom end of the sliding rod 408 penetrates the plug-in block 303 and is fixedly connected with an L-shaped moving plate 409, the inner wall bottom of the receiving groove 401 is provided with a limiting hole 410, the limiting hole 410 penetrates the limiting plate 403, the limiting hole 410 is provided with two corresponding limiting plate 403, the inside of the two limiting holes 410 is movably connected with a limiting rod 411, the limiting rod 411 is fixedly connected with the L-shaped moving plate 409, the bottom of the L-shaped moving plate 409 is fixedly connected with a handle 412, and the bottom of the sliding disc 407 and the inner wall of the sliding cavity 406 are fixedly connected with a limiting spring 413.

[0046] By pulling the handle 412 downwards to the L-shaped moving plate 409, the L-shaped moving plate 409 is extruded downwards to the limiting spring 413 through the sliding rod 408 and the sliding disc 407, and the limiting rod 411 is driven by the L-shaped moving plate 409 to move out of the limiting hole 410, so that the limiting plate 403 drives the limiting block 402 to move in the storage slot 401, the limiting hole 410 is provided with two according to the position of the limiting plate 403 when the limiting block 402 is in the storage slot 401 or limits the plug-in block 303, which makes the limiting block 402 not move randomly when it is in the storage slot 401 or limits the plug-in block 303, and only needs to pull the handle 412 downwards when moving the limiting block 402, which is more convenient to operate.

[0047] In one embodiment, for the above-mentioned locking assembly 5, the locking assembly 5 comprises a locking frame 501, which is arranged outside the first connecting plate 201 and the second connecting plate 202, an L-shaped locking plate 502 is movably connected inside the locking frame 501, a locking hole 503 is formed on one side of the L-shaped locking plate 502, the locking hole 503 penetrates through the locking frame 501, a storage cylinder 504 is fixedly connected to one side of the locking frame 501 corresponding to the locking hole 503, a locking rod 505 is movably connected inside the locking hole 503, a moving disc 506 is fixedly connected to the outer surface of the locking rod 505, the moving disc 506 is movably connected with the storage cylinder 504, a locking spring 507 is fixedly connected between one side of the moving disc 506 and the inner wall of the storage cylinder 504, and one end of the locking rod 505 penetrates through the storage cylinder 504 and is fixedly connected with a pull disc 508.

[0048] When the first connecting plate 201 and the second connecting plate 202 are in a straight line, the L-shaped locking plate 502 is directly moved, so that the L-shaped locking plate 502 can be moved to the inside of the two locking frames 501, at this time the L-shaped locking plate 502 can lock the first connecting plate 201 and the second connecting plate 202 through the two locking frames 501, so that the two connecting plates cannot be randomly rotated, at the same time the locking spring 507 can push the moving disc 506 downward, so that the locking rod 505 can be moved to the inside of the locking hole 503 under the pushing of the moving disc 506, so that the L-shaped locking plate 502 cannot move in the locking frame 501, so that the locking effect of the L-shaped locking plate 502 can be guaranteed. When the first connecting plate 201 and the second connecting plate 202 are folded together, the locking rod 505 is pulled through the pull disc 508, so that the locking rod 505 can move out of the inside of the locking hole 503, then the L-shaped locking plate 502 is pulled, so that the L-shaped locking plate 502 can move out of the inside of the locking frame 501 on the first connecting plate 201, at the same time the locking rod 505 locks the L-shaped locking plate 502 at this position through the corresponding locking hole 503, so that the L-shaped locking plate 502 cannot be randomly moved to the inside of the locking frame 501 on the first connecting plate 201, and when the L-shaped locking plate 502 is moved, the locking of the L-shaped locking plate 502 can be released by directly pulling the pull disc 508, which is convenient to operate.

[0049] Through the technical scheme, 1, the folding escalator assembly 2 and the supporting assembly 1 are connected together through the plug-in assembly 3, and the plug-in end of the plug-in assembly 3 cannot be separated from the supporting assembly 1 through the limiting assembly 4. Since the folding escalator assembly 2 is mainly installed through the plug-in mode, when the folding escalator assembly 2 is disassembled, the plug-in end of the plug-in assembly 3 is only limited through the limiting assembly 4, and then the folding escalator assembly 2 is lifted upwards to separate the folding escalator assembly 2 from the supporting assembly 1, so that the whole disassembly process is relatively convenient. 2, the handle 412 is pulled downwards to the L-shaped moving plate 409, so that the limiting rod 411 is not limited to the limiting plate 403, and then the limiting plate 403 is pushed through the pushing groove 405, so that the limiting block 402 can be moved out of the inside of the storage groove 401 and limited to the plug-in block 303. When the limiting block 402 moves to the predetermined position, the handle is released, and at this time, the limiting spring 413 moves the limiting rod 411 to the inside of the limiting hole 410 on the limiting plate 403 through the sliding disc 407, the sliding rod 408 and the L-shaped moving plate 409, so that the limiting block 402 is limited to the plug-in block 303. The above-mentioned setting makes the plug-in block 303 not move out of the inside of the plug-in groove 302 under the limiting of the limiting block 402, and only needs to pull the handle 412 downwards when moving the limiting block 402, which is relatively convenient to operate.

[0050] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The above disclosed preferred embodiments of the utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A folding escalator for temporary accommodation, comprising a support assembly (1), characterized in that, A folding escalator assembly (2) is provided on one side of the support assembly (1), and a plug-in assembly (3) is provided between the folding escalator assembly (2) and the support assembly (1). A limit assembly (4) is provided at the plug-in end of the plug-in assembly (3), and a locking assembly (5) is provided on the outside of the folding escalator assembly (2). The locking component (5) is used to lock the opened folding escalator component (2). The folding escalator component (2) is inserted into the support component (1) through the insertion end of the insertion component (3) so that the support component (1) supports the folding escalator component (2). The limiting component (4) is used to limit the insertion end of the insertion component (3).

2. The folding escalator for temporary accommodation rooms according to claim 1, characterized in that, The support assembly (1) includes a turning platform (101), and a plurality of support legs (102) are fixedly installed on the bottom of the turning platform (101), and reinforcing ribs (103) are fixedly installed between adjacent support legs (102).

3. A folding escalator for temporary accommodation rooms according to claim 2, characterized in that, The folding escalator assembly (2) includes a first connecting plate (201) and a second connecting plate (202). There are two symmetrically arranged first connecting plates (201) and second connecting plates (202). A rotating groove (203) is opened on the adjacent side of the first connecting plate (201) and the second connecting plate (202). A rotating plate (204) is rotatably connected inside the rotating groove (203). A footboard (205) is fixedly connected to the inner side of the first connecting plate (201) and the second connecting plate (202). A handrail (206) is fixedly installed on the top of the first connecting plate (201) and the second connecting plate (202).

4. A folding escalator for temporary accommodation rooms according to claim 3, characterized in that, The plug-in assembly (3) includes a placement groove (301) which is located on the top of the turning platform (101). A plug-in groove (302) is located at the bottom of the placement groove (301). A plug-in block (303) is movably connected inside the plug-in groove (302). The plug-in block (303) is fixedly connected to the uppermost pedal (205) of the second connecting plate (202). The pedal (205) is movably connected to the placement groove (301).

5. A folding escalator for temporary accommodation rooms according to claim 4, characterized in that, The limiting component (4) includes a storage slot (401), which is located on one side of the plug-in block (303). A limiting block (402) is movably connected inside the storage slot (401). A limiting plate (403) is fixedly connected to the back of the limiting block (402). A guide rod (404) is fixedly connected to the inner wall of the storage slot (401). The limiting plate (403) is movably connected to the guide rod (404). A pushing groove (405) is provided on the back of the storage slot (401).

6. A folding escalator for temporary accommodation rooms according to claim 5, characterized in that, The bottom of the plug-in block (303) is provided with a sliding cavity (406), and a sliding disk (407) is movably connected inside the sliding cavity (406). A sliding rod (408) is fixedly connected to the bottom of the sliding disk (407). The bottom end of the sliding rod (408) passes through the plug-in block (303) and is fixedly connected to an L-shaped moving plate (409). A limiting hole (410) is provided at the bottom of the inner wall of the storage groove (401). The limiting hole (410) passes through the limiting plate. Position plate (403), the limiting hole (410) is opened in two corresponding to the limiting plate (403), the two limiting holes (410) are movably connected to the internal limit rod (411), the limiting rod (411) is fixedly connected to the L-shaped moving plate (409), the bottom of the L-shaped moving plate (409) is fixedly connected to the handle (412), and the bottom of the sliding plate (407) and the inner wall of the sliding cavity (406) are fixedly connected to the limiting spring (413).

7. A folding escalator for temporary accommodation rooms according to claim 3, characterized in that, The locking assembly (5) includes a locking frame (501), which is provided on the outer sides of both the first connecting plate (201) and the second connecting plate (202). An L-shaped locking plate (502) is movably connected inside the locking frame (501). A locking hole (503) is provided on one side of the L-shaped locking plate (502), and the locking hole (503) passes through the locking frame (501). A receiver is fixedly connected to one side of the locking frame (501) corresponding to the locking hole (503). The storage cylinder (504) has a locking rod (505) movably connected inside the locking hole (503). A movable disk (506) is fixedly connected to the outer surface of the locking rod (505). The movable disk (506) is movably connected to the storage cylinder (504). A locking spring (507) is fixedly connected between one side of the movable disk (506) and the inner wall of the storage cylinder (504). One end of the locking rod (505) passes through the storage cylinder (504) and is fixedly connected to a pull plate (508).

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