Clamping structure, pile casing structure and lifting pile casing

Abstract

The utility model discloses a clamping structure, a pile casing structure and a lifting pile casing, the clamping structure comprises a first connecting piece and a second connecting piece, the first connecting piece is provided with a first butt joint edge, the first connecting piece is provided with a limiting part and a buckle, and the limiting part and the buckle are both connected to the first butt joint edge and are arranged in parallel and at intervals in the length direction of the first butt joint edge; the second connecting piece is provided with a second butt joint edge and a clamping edge which are opposite, the second butt joint edge is provided with a limiting groove, the clamping edge is provided with a clamping groove, and the limiting groove and the clamping groove are arranged in a staggered mode in the length direction of the second butt joint edge; and when the first butt joint edge is in butt joint with the second butt joint edge, the limiting part is limited in the limiting groove, and the buckle is buckled in the clamping groove, so that the first connecting piece and the second connecting piece are detachably connected. According to the technical scheme, the pile casing of the operating bed lifting device can be disassembled and assembled without tools, so that the disassembling and assembling efficiency of the pile casing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of operating table accessories, in particular to a clamping structure, a casing structure using the clamping structure, and a lifting casing using the lifting casing. Background Art

[0002] The lifting operating table is mainly a platform for performing various operations in the operating room, and there are mainly electric operating tables and hydraulic operating tables. Both operating tables have the function of lifting, so generally, a protective sleeve that can follow the lifting is provided on the lifting part of the operating table to protect the lifting structure inside the operating table. At present, the protective sleeve has two structures: one-piece structure and half-open structure. Since the one-piece structure protective sleeve is inconvenient to disassemble and assemble, which is not conducive to after-sales maintenance, the half-open structure is the mainstream structure of the current operating table protective sleeve. However, most of the half-open structure protective sleeves are currently fixed by screws, which is not beautiful and not conducive to the disassembly and assembly of the protective sleeve. Utility Model Content

[0003] The main purpose of the utility model is to provide a clamping structure, a protective sleeve structure and a lifting protective sleeve, so as to enable the protective sleeve of the operating table lifting device to be disassembled and assembled without tools, so as to improve the disassembly and assembly efficiency of the protective sleeve.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a clamping structure, which is applied to lifting casing, and the clamping structure includes:

[0005] A first connecting member, wherein the first connecting member has a first butt joint edge, the first connecting member is provided with a limiting portion and a buckle, the limiting portion and the buckle are both connected to the first butt joint edge, and are arranged in parallel and at intervals along the length direction of the first butt joint edge; and

[0006] A second connecting member, the second connecting member having a second butt joint edge and a clamping edge opposite to each other, the second butt joint edge is provided with a limiting groove, the clamping edge is provided with a clamping groove, the limiting groove and the clamping groove are alternately arranged along the length direction of the second butt joint edge;

[0007] Wherein, when the first butting edge is butted with the second butting edge, the limiting portion is limited in the limiting groove, and the buckle is buckled in the buckle groove, so that the first connecting member and the second connecting member are detachably connected.

[0008] In one embodiment of the utility model, the limiting portion and the buckle each include a plurality, and the plurality of limiting portions and the buckle are alternately arranged along the first docking edge, the limiting groove and the limiting portion are arranged in a one-to-one correspondence, and the buckle slot and the buckle are arranged in a one-to-one correspondence.

[0009] In an embodiment of the present invention, at least two of the buckles are provided between two adjacent limiting portions, or at least two of the buckles are provided between two adjacent limiting portions.

[0010] In an embodiment of the present invention, the limiting portion is a protruding structure, and the limiting groove is a groove structure.

[0011] In one embodiment of the utility model, the buckle includes a first bent portion and a second bent portion connected to each other, the first bent portion is connected to the first docking edge of the first connecting member, the second bent portion is connected to an end of the first bent portion away from the first docking edge, the first bent portion encloses a avoidance space, and the avoidance space is used to avoid the second connecting member so that the outer side of the second bent portion is limited to the slot.

[0012] The utility model also provides a protective tube structure, which includes a first cylinder, a second cylinder and the clamping structure as described above, the first cylinder and the second cylinder are detachably enclosed by the clamping structure to form an annular protective cavity and a first opening and a second opening connecting the protective cavity, and the first opening and the second opening are arranged opposite to each other.

[0013] In one embodiment of the present invention, both ends of the first cylinder are connected to the first connecting members, both ends of the second cylinder are connected to the second connecting members, and the first connecting members and the second connecting members are connected one by one so that the first cylinder and the second cylinder can be detachably connected.

[0014] In one embodiment of the utility model, one end of the first cylinder is connected to the first connecting member, the other end of the first cylinder is connected to the second connecting member, one end of the second cylinder is connected to the second connecting member, the other end of the second cylinder is connected to the second connecting member, and the first connecting member and the second connecting member are correspondingly connected so that the first cylinder and the second cylinder are detachably connected.

[0015] The utility model also provides a lifting casing, which comprises a plurality of casing structures as described above, wherein the plurality of casing structures comprise a first casing, at least one second casing and a third casing, wherein the first casing, the second casing and the third casing are sequentially sleeved and connected.

[0016] In one embodiment of the utility model, a first limit block is provided on the outer wall of the first casing, and the first limit block is arranged close to the first opening of the first casing; a second limit block is provided on the inner wall of the second casing, and the second limit block is arranged close to the second opening of the second casing; a third limit block is provided on the outer wall of the second casing, and the third limit block is arranged close to the first opening of the second casing; a fourth limit block is provided on the inner wall of the third casing, and the fourth limit block is arranged close to the second opening of the third casing.

[0017] The clamping structure of the technical solution of the utility model is composed of a first connecting member and a second connecting member. When the first connecting member and the second connecting member are combined, the first butt joint edge of the first connecting member is aligned with the second butt joint edge of the second connecting member, and the limiting part connected to the first butt joint edge is limited to the limiting groove of the second connecting edge, so as to facilitate the positioning connection of the first butt joint edge and the second butt joint edge, and at the same time, the first butt joint edge and the second butt joint edge are aligned and bite, so as to improve the connection strength of the first connecting member and the second connecting member. When the limiting part is limited in the limiting groove, the buckle is buckled in the clamping groove provided on the clamping edge of the second connecting member, so that the buckle provides a force toward the first butt joint edge to the second connecting member, so that the limiting part and the limiting groove are more closely abutted, and the limiting part is prevented from being disengaged from the limiting groove, and the connection between the first connecting member and the second connecting member is completed. When the first connecting member and the second connecting member need to be separated, it is only necessary to pull the buckle out of the clamping groove, and the limiting part is disengaged from the limiting groove, so that the first connecting member and the second connecting member are completed. When the clamping structure is applied to the casing, the staff can realize the disassembly and assembly of the casing by hand without the aid of tools, thus greatly improving the efficiency of disassembly and assembly of the casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the exploded structure of the engaging structure in one embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the combined structure of the locking structure in one embodiment of the utility model;

[0021] Figure 3 This is a structural schematic diagram of the casing structure in one embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the lifting casing in one embodiment of the utility model;

[0023] Figure 5 It is a structural schematic diagram of an embodiment of the utility model in which the lifting sleeve is in a raised state on the operating table;

[0024] Figure 6 It is a structural schematic diagram of the lifting sleeve in an embodiment of the utility model when the operating table is in a retracted state.

[0025] Description of Figure Numbers:

[0026] Label name Label name 100 Snap-fit ​​structure 3 First cylinder 1 First connecting piece 4 Second cylinder 11 First butt edge 5 Protection cavity 12 Limiting part 51 First opening 13 Buckle 52 Second opening 131 First bend 300 Lifting casing 132 Second bend 6 First casing 2 Second connecting piece 61 The first limit block 21 Second butt edge 7 Second casing 22 Limit slot 71 The second limit block 23 Card edge 72 The third limit block 24 Card slot 8 The third casing 200 Casing structure 81 Fourth limit block

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] Please combine Figure 1 , Figure 2 and Figure 3As shown, the utility model proposes a snap-fit ​​structure 100, which is applied to a lifting casing 300. The snap-fit ​​structure 100 includes a first connecting member 1 and a second connecting member 2. The first connecting member 1 has a first butt joint edge 11, and the first connecting member 1 is provided with a limiting portion 12 and a buckle 13. The limiting portion 12 and the buckle 13 are both connected to the first butt joint edge 11, and are parallel and spaced along the length direction of the first butt joint edge 11; the second connecting member 2 has a second butt joint edge 21 and a snap-fit ​​edge 23 opposite to each other, the second butt joint edge 21 is provided with a limiting groove 22, and the snap-fit ​​edge 23 is provided with a snap-fit ​​groove 24, and the limiting groove 22 and the snap-fit ​​groove 24 are staggered along the length direction of the second butt joint edge 21; wherein, when the first butt joint edge 11 is butt jointed with the second butt joint edge 21, the limiting portion 12 is limited to the limiting groove 22, and the buckle 13 is buckled in the snap-fit ​​groove 24, so that the first connecting member 1 and the second connecting member 2 can be detachably connected.

[0033] In this embodiment, the locking structure 100 is composed of a first connecting member 1 and a second connecting member 2. When the first connecting member 1 and the second connecting member 2 are combined, the first butt joint edge 11 of the first connecting member 1 is aligned with the second butt joint edge 21 of the second connecting member 2, and the limiting portion 12 connected to the first butt joint edge 11 is limited to the limiting groove 22 of the second connecting edge, so as to facilitate the positioning connection of the first butt joint edge 11 and the second butt joint edge 21, and at the same time, the first butt joint edge 11 and the second butt joint edge 21 are aligned and bite, thereby improving the connection strength between the first connecting member 1 and the second connecting member 2. When the limiting portion 12 is limited in the limiting groove 22, the buckle 13 is buckled into the clamping groove 24 provided on the locking edge of the second connecting member 2. In this way, the buckle 13 provides a force toward the first butt joint edge 11 to the second connecting member 2, so that the limiting portion 12 and the limiting groove 22 are more closely abutted, thereby preventing the limiting portion 12 from escaping from the limiting groove 22, thereby completing the connection between the first connecting member 1 and the second connecting member 2. When the first connecting member 1 and the second connecting member 2 need to be separated, the buckle 13 only needs to be pulled out of the clamping groove 24, and the limiting portion 12 is disengaged from the limiting groove 22, so that the first connecting member 1 and the second connecting member 2 are completed. The limiting portion 12 and the buckle 13 are arranged parallel and spaced along the length direction of the first butting edge 11, and correspondingly, the limiting groove 22 and the clamping groove 24 are arranged alternately, so as to prevent the buckle 13 from hindering the normal positioning of the limiting portion 12 and the limiting groove 22.

[0034] In actual implementation, when the snap-fit ​​structure 100 is applied to the casing, it is possible to avoid assembling the casing by means of screws or the like, and the staff can disassemble and assemble the casing by hand without the aid of tools, thereby greatly improving the efficiency of disassembling and assembling the casing.

[0035] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the limiting portion 12 and the buckle 13 each include a plurality, and the plurality of limiting portions 12 and the buckle 13 are alternately arranged along the first docking edge 11, the limiting grooves 22 and the limiting portions 12 are arranged in a one-to-one correspondence, and the buckle slots 24 and the buckles 13 are arranged in a one-to-one correspondence.

[0036] In this embodiment, the limiting portion 12 and the buckle 13 are alternately arranged so that the limiting portion 12 is limited in the limiting groove 22 as evenly as possible, so as to avoid the limiting portion 12 being unevenly stressed and falling out of the limiting groove 22 when the first connecting member 1 and the second connecting member 2 are connected, or the limiting portion 12 being unevenly stressed and getting stuck in the limiting groove 22 when the first connecting member 1 and the second connecting member 2 are separated.

[0037] In actual implementation, the limiting groove 22 and the limiting portion 12 have the same shape and size. When the limiting portion 12 is limited in the limiting groove 22, the limiting portion 12 abuts against the inner wall of the limiting groove 22 to prevent relative movement when the first connecting member 1 and the second connecting member 2 are connected. The limiting portion 12 and the buckle 13 can be alternately arranged along the first butt edge 11 in the manner of one limiting portion 12 and one buckle 13.

[0038] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, at least two buckles 13 are provided between two adjacent limiting portions 12 , or at least two limiting portions 12 are provided between two adjacent buckles 13 .

[0039] In this embodiment, the limiting portion 12 and the buckle 13 are alternately arranged along the first docking edge 11 in the manner of one limiting portion 12 and two buckles 13, or the limiting portion 12 and the buckle 13 are alternately arranged along the first docking edge 11 in the manner of two limiting portions 12 and one buckle 13, so as to improve the firmness of the connection between the first connecting member 1 and the second connecting member 2.

[0040] In actual implementation, the limiting portion 12 and the buckle 13 are alternately arranged along the first docking edge 11 in the form of one limiting portion 12 and multiple buckles 13, or the limiting portion 12 and the buckle 13 are alternately arranged along the first docking edge 11 in the form of one buckle 13 and multiple limiting portions 12, or the limiting portion 12 and the buckle 13 are alternately arranged along the first docking edge 11 in the form of multiple limiting portions 12 and multiple buckles 13, and no specific limitation is made here.

[0041] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the limiting portion 12 is a protruding structure, and the limiting groove 22 is a groove structure.

[0042] In this embodiment, the limiting portion 12 and the limiting groove 22 are respectively a protruding structure and a groove structure, so as to achieve a tight connection between the limiting portion 12 and the limiting groove 22 .

[0043] In one embodiment of the present invention, Figure 1As shown, the buckle 13 includes a first bent portion 131 and a second bent portion 132 connected to each other. The first bent portion 131 is connected to the first docking edge 11 of the first connecting member 1, and the second bent portion 132 is connected to an end of the first bent portion 131 away from the first docking edge 11. The first bent portion 131 encloses a avoidance space, and the avoidance space is used to avoid the second connecting member 2, so that the outer side of the second bent portion 132 is limited in the slot 24.

[0044] In this embodiment, the buckle 13 is composed of a first curved portion 131 and a second curved portion 132. The first curved portion 131 encloses an avoidance space. When the first connector 1 and the second connector 2 are connected, the second connector 2 is located in the avoidance space, so that the second curved portion 132 connected to the first curved portion 131 can pass over the second butting edge 21 to reach the clamping edge 23, and the second curved portion 132 is limited in the clamping groove 24 of the clamping edge 23. The outer side of the second curved portion 132 is limited in the clamping groove 24, that is, the end of the second curved portion 132 away from the first curved portion 131 is tilted upward. When the first connector 1 and the second connector 2 are combined, it is only necessary to align the first connector 1 and the second connector 2 and then plug them together. The tilted end of the second curved portion 132 guides the buckle 13 to pass over the second connector 2, thereby reducing the connection resistance of the first connector 1 and the second connector 2. When the first connector 1 and the second connector 2 are disassembled, it is only necessary to break the tilted end of the second curved portion 132 away from the second connector 2. The buckle 13 can be a spring.

[0045] The utility model also provides a casing structure 200, such as Figure 3 As shown, the protective tube structure 200 includes a first cylindrical body 3, a second cylindrical body 4 and the above-mentioned snap-fit ​​structure 100. The specific structure of the protective tube structure 200 refers to the above-mentioned embodiment. Since the operating table adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0046] The first barrel 3 and the second barrel 4 are detachably enclosed by the engaging structure 100 to form an annular protective cavity 5 and a first opening 51 and a second opening 52 communicating with the protective cavity 5 . The first opening 51 and the second opening 52 are arranged opposite to each other.

[0047] In this embodiment, the first cylinder 3 and the second cylinder 4 have two connecting ends respectively, and the two ends of the first cylinder 3 and the two ends of the second cylinder 4 are respectively connected correspondingly. The locking structure 100 is arranged at the connection between the first cylinder 3 and the second cylinder 4, so that the first cylinder 3 and the second cylinder 4 can detachably form a protective tube structure 200.

[0048] In actual implementation, the first barrel 3 and the second barrel 4 are substantially U-shaped to enclose a U-shaped protection cavity 5 and a first opening 51 and a second opening 52 communicating with the protection cavity 5. The locking structure 100 is disposed on the cavity wall of the protection cavity 5.

[0049] Optionally, the two ends of the first cylinder 3 are respectively connected to a first connecting member 1, and correspondingly, the two ends of the second cylinder 4 are respectively connected to a second connecting member 2, or, the two ends of the first cylinder 3 are respectively connected to a second connecting member 2, and correspondingly, the two ends of the second cylinder 4 are respectively connected to a first connecting member 1, and the first connecting member 1 and the second connecting member 2 are connected one by one, so that the first cylinder 3 and the second cylinder 4 can be detachably connected.

[0050] Optionally, one end of the first cylinder 3 is connected to the first connecting member 1, the other end of the first cylinder 3 is connected to the second connecting member 2, one end of the second cylinder 4 is connected to the second connecting member 2, the other end of the second cylinder 4 is connected to the second connecting member 2, and the first connecting member 1 and the second connecting member 2 are connected correspondingly, so that the first cylinder 3 and the second cylinder 4 are detachably connected. The first connecting member 1 and the second connecting member 2 are made of metal and are connected to the first cylinder 3 or the second cylinder 4 by welding or screws.

[0051] The utility model also provides a lifting casing 300, such as Figures 3 to 6 As shown, the lifting sleeve 300 includes a plurality of sleeve structures 200 as described above. The specific structure of the sleeve structure 200 refers to the above embodiment. Since the operating table adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0052] The plurality of protective tube structures 200 include a first protective tube 6 , at least one second protective tube 7 and a third protective tube 8 , and the first protective tube 6 , the second protective tube 7 and the third protective tube 8 are sleeved and connected in sequence.

[0053] In this embodiment, if Figures 4 to 6As shown, the lifting sleeve 300 is composed of a first sleeve 6, at least one second sleeve 7 and a third sleeve 8. The projection area of ​​the protection cavity 5 formed by the first sleeve 6, the second sleeve 7 and the third sleeve 8 increases in sequence along the axial direction. When the lifting sleeve 300 is in the retracted state, the second sleeve 7 is sleeved on the outside of the first sleeve 6, and the first sleeve 6 is completely accommodated in the protection cavity 5 of the second sleeve 7. The third sleeve 8 is sleeved on the outside of the second sleeve 7, and the second sleeve 7 is completely accommodated in the protection cavity 5 of the third sleeve 8. In this way, the enclosed height of the entire lifting sleeve 300 is consistent with the height of the third sleeve 8. When the lifting casing 300 is in use, when the third casing 8 moves to a certain height along the outer wall of the second casing 7, the third casing 8 drives the second casing 7 to move to a certain height along the outer wall of the first casing 6, wherein the third casing 8 is connected to the lifting end of the lifting device, and the first casing 6 is connected to the fixed end of the lifting device. It can be understood that the end of the first casing 6 close to the second opening 52 is provided with a connecting hole to connect the fixed end, and the end of the third casing 8 close to the first opening 51 is provided with a connecting hole to connect the lifting end.

[0054] In actual implementation, the lifting sleeve 300 can be applied to a lifting operating bed, which includes a base frame, a lifting device and a bed body. The lifting device is connected to the base frame, and the bed body is connected to the output end of the lifting device. The lifting sleeve 300 is arranged to enclose the lifting device so that the lifting device is located in the protection cavity 5, one end of the first sleeve 6 is connected to the base, and one end of the third sleeve 8 is connected to the bed body or the accordion cover connected to the bed body. If a second sleeve 7 is provided, and the height of the lifting sleeve 300 when fully raised cannot meet the requirements of the protection height, multiple second sleeves 7 can be provided, and the multiple second sleeves 7 are sleeved and connected in sequence, the innermost second sleeve 7 is sleeved and connected to the first sleeve 6, and the third sleeve 8 is sleeved and connected to the outermost second sleeve 7, thereby increasing the height of the lifting sleeve 300 when fully raised.

[0055] In one embodiment of the present invention, Figure 3 and Figure 4 As shown, the outer wall of the first casing 6 is provided with a first limit block 61, and the first limit block 61 is arranged near the first opening 51 of the first casing 6; the inner wall of the second casing 7 is provided with a second limit block 71, and the second limit block 71 is arranged near the second opening 52 of the second casing 7; the outer wall of the second casing 7 is provided with a third limit block 72, and the third limit block 72 is arranged near the first opening 51 of the second casing 7; the inner wall of the third casing 8 is provided with a fourth limit block 81, and the fourth limit block 81 is arranged near the second opening 52 of the third casing 8.

[0056] In this embodiment, when the lifting casing 300 is lifted, the third casing 8 is lifted until the fourth limit block 81 abuts against the third limit block 72. At this time, the third casing 8 drives the second casing 7 to lift together until the second limit block 71 of the second casing 7 abuts against the first limit block 61 of the first casing 6. The lifting casing 300 completes the lifting. When multiple second casings 7 are provided, the multiple second casings 7 are also driven to lift in this way.

[0057] In actual implementation, a plurality of first limit blocks 61 may be provided, and the plurality of first limit blocks 61 are arranged at intervals along the circumference of the first casing 6, the second limit blocks 71 are arranged one-to-one with the first limit blocks 61, and the first limit blocks 61 and the second limit blocks 71 overlap along the axial projection of the lifting casing 300. A plurality of fourth limit blocks 81 may be provided, and the plurality of fourth limit blocks 81 are arranged at intervals along the circumference of the third casing 8, the third limit blocks 72 are arranged one-to-one with the fourth limit blocks 81, and the fourth limit blocks 81 and the third limit blocks 72 overlap along the axial projection of the lifting casing 300.

[0058] Optionally, the first limit block 61 abuts against the inner wall of the second casing 7 , the second limit block 71 abuts against the outer wall of the first casing 6 , the third limit block 72 abuts against the inner wall of the third casing 8 , and the fourth limit block 81 abuts against the outer wall of the second casing 7 .

[0059] Optionally, the first limit block 61, the second limit block 71, the third limit block 72 and the fourth limit block 81 are all provided with through grooves. When the first limit block 61 and the second limit block 71 are abutted, the groove wall of the through groove of the first limit block 61 is limited in the through groove of the second limit block 71, and the groove wall of the through groove of the second limit block 71 is limited in the through groove of the first limit block 61, so as to realize the bite connection between the first limit block 61 and the second limit block 71. When the third limit block 72 and the fourth limit block 81 are abutted, the groove wall of the through groove of the third limit block 72 is limited in the through groove of the fourth limit block 81, and the groove wall of the through groove of the fourth limit block 81 is limited in the through groove of the third limit block 72, so as to realize the bite connection between the third limit block 72 and the fourth limit block 81. In this way, the lifting casing 300 is more stable when lifting.

[0060] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the concept of the utility model, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A clamping structure, applied to lifting casing, characterized in that: The engaging structure comprises: A first connecting member, wherein the first connecting member has a first butt joint edge, the first connecting member is provided with a limiting portion and a buckle, the limiting portion and the buckle are both connected to the first butt joint edge, and are arranged in parallel and at intervals along the length direction of the first butt joint edge; and A second connecting member, the second connecting member having a second butt joint edge and a clamping edge opposite to each other, the second butt joint edge is provided with a limiting groove, the clamping edge is provided with a clamping groove, the limiting groove and the clamping groove are alternately arranged along the length direction of the second butt joint edge; Wherein, when the first butting edge is butted with the second butting edge, the limiting portion is limited in the limiting groove, and the buckle is buckled in the buckle groove, so that the first connecting member and the second connecting member are detachably connected.

2. The engaging structure according to claim 1, characterized in that: The limiting parts and the buckles are both multiple, and the multiple limiting parts and the multiple buckles are alternately arranged along the first docking edge. The limiting grooves and the limiting parts are arranged in a one-to-one correspondence, and the buckles and the slots are arranged in a one-to-one correspondence.

3. The engaging structure according to claim 2, characterized in that: At least two of the buckles are provided between two adjacent limiting portions, or at least two of the buckles are provided between two adjacent limiting portions.

4. The engaging structure according to any one of claims 1 to 3, characterized in that: The limiting portion is a protruding structure, and the limiting groove is a groove structure.

5. The engaging structure according to claim 2, wherein: The buckle includes a first bent portion and a second bent portion connected to each other, the first bent portion is connected to a first docking edge of the first connector, the second bent portion is connected to an end of the first bent portion away from the first docking edge, the first bent portion encloses a avoidance space, and the avoidance space is used to avoid the second connector so that the outer side of the second bent portion is limited to the slot.

6. A casing structure, characterized in that: The protective tube structure includes a first cylinder, a second cylinder and a snap-fit ​​structure as described in any one of claims 1 to 5, wherein the first cylinder and the second cylinder are detachably enclosed by the snap-fit ​​structure to form an annular protective cavity and a first opening and a second opening connecting the protective cavity, and the first opening and the second opening are arranged opposite to each other.

7. The casing structure according to claim 6, characterized in that: Both ends of the first cylinder are connected to the first connecting piece, and both ends of the second cylinder are connected to the second connecting piece. The first connecting piece and the second connecting piece are connected one by one, so that the first cylinder and the second cylinder are detachably connected.

8. The casing structure according to claim 6, characterized in that: One end of the first cylinder is connected to the first connecting piece, the other end of the first cylinder is connected to the second connecting piece, one end of the second cylinder is connected to the second connecting piece, and the other end of the second cylinder is connected to the second connecting piece. The first connecting piece and the second connecting piece are connected correspondingly so that the first cylinder and the second cylinder can be detachably connected.

9. A lifting casing, characterized in that: The lifting casing comprises a plurality of casing structures according to any one of claims 6 to 8, wherein the plurality of casing structures comprises a first casing, at least one second casing and a third casing, and the first casing, the second casing and the third casing are sequentially sleeved and connected.

10. The lifting casing according to claim 9, characterized in that: A first limit block is provided on the outer wall of the first casing, and the first limit block is arranged close to the first opening of the first casing; a second limit block is provided on the inner wall of the second casing, and the second limit block is arranged close to the second opening of the second casing; a third limit block is provided on the outer wall of the second casing, and the third limit block is arranged close to the first opening of the second casing; a fourth limit block is provided on the inner wall of the third casing, and the fourth limit block is arranged close to the second opening of the third casing.

Images