Folding stair fixing assembly

Abstract

The utility model discloses a folding stair fixing assembly, and belongs to the technical field of stairs. The fixing assembly comprises a first limiting piece, a second limiting piece and a fastening piece, the first limiting piece is arranged on the first folding rod on the outer side of the X-shaped folding rod, and the first limiting piece is provided with a first limiting part for limiting rotation of the first folding rod; the second limiting piece is arranged on the second folding rod on the inner side of the X-shaped folding rod, the second limiting piece is provided with a second limiting part for limiting rotation of the second folding rod, and the first limiting piece and the second limiting piece are connected in a fastening mode through a fastening piece. The fixing assembly is extremely easy to mount and dismount, folding of the staircase is not affected after dismounting, fixing of an existing folding staircase after unfolding is facilitated, the first limiting part and the second limiting part can limit rotation of the first folding rod and the second folding rod respectively, the limiting stability is high, and the fixing assembly is convenient to use. And a user only needs to purchase the fixing assembly independently.

Description

TECHNICAL FIELD

[0001] The utility model relates to stair technology field, more specifically refers to a folding stair fixed assembly. BACKGROUND

[0002] With the improvement of people's living standards, family pet-keeping becomes more and more popular. Many keepers will take pets by car or go to bed, but due to the height of the car and bed, it is not convenient for some small pets or heavy pets to get in and out of the car or bed, so pet stairs emerge as the times require. In order to facilitate the storage of pet stairs, many pet stairs currently adopt foldable structure.

[0003] A novel pet stairs is disclosed in a Chinese patent with authorization announcement No. CN 220831383U, which comprises a connecting column, a stand column rotatably connected to the middle part of the connecting column, an X-shaped folding rod rotatably connected to the bottom of the stand column, a plurality of X-shaped folding rods provided with the X-shaped folding rod and rotatably connected through connecting shafts, a climbing platform fixedly arranged on each of the plurality of X-shaped folding rods, and a backfolding prevention rope fixedly connected to the bottom of the connecting column and a buckle fixedly connected to the backfolding prevention rope. The bottom of each of the plurality of X-shaped folding rods is provided with a limiting rope, the limiting rope is fixed to the end of the X-shaped folding rod and the other end is fixed to the top end of the X-shaped folding rod, which further limits the plurality of X-shaped folding rods after unfolding and enhances the stability of the connection between the plurality of X-shaped folding rods.

[0004] However, the installation of the limiting rope is relatively cumbersome, and it is easy to be wound together when the pet stairs are folded, which affects the folding of the pet stairs. Moreover, the pulling force of the limiting rope is limited, and it is easy to be elongated under the action of force, resulting in poor stability of the limiting. UTILITY MODEL CONTENTS

[0005] The utility model provides a folding stair fixed assembly to solve the plurality of X-shaped folding rods after unfolding is positioned by the limiting rope of the existing folding stair, and the installation and dismounting are relatively cumbersome, and the stability of the limiting is poor and the like.

[0006] The utility model adopts the following technical scheme:

[0007] A folding stair fixed assembly comprises a first limiting piece, a second limiting piece and a fastener, the first limiting piece is arranged on a first folding rod outside an X-shaped folding rod, the first limiting piece is provided with a first limiting part for limiting the rotation of the first folding rod when the X-shaped folding rod is unfolded, the second limiting piece is arranged on a second folding rod inside the X-shaped folding rod, the second limiting piece is provided with a second limiting part for limiting the rotation of the second folding rod when the X-shaped folding rod is unfolded, and the first limiting piece and the second limiting piece are fastened and connected through the fastener.

[0008] Further, the second limiting member is provided with a disengaging limiting part, which is located at the side of the inner side wall of the first folding rod.

[0009] In a preferred embodiment, the first limiting part is a first limiting open slot, which is detachably clamped on the first folding rod; and the second limiting part is a second limiting open slot, which is detachably clamped on the second folding rod.

[0010] In a preferred embodiment, the disengaging limiting part is formed by extending the end of the upper side wall and / or the end of the lower side wall of the second limiting open slot to the side of the first folding rod, and is blocked by the inner side wall of the first folding rod.

[0011] In a preferred embodiment, the cross section of the first folding rod and the second folding rod is rectangular, the cross section of the first limiting open slot is L-shaped or “[”-shaped, and the cross section of the second limiting open slot is “[”-shaped.

[0012] In a preferred embodiment, the first limiting member is composed of a first limiting block and a first pressing block, the first limiting block is L-shaped, and the first pressing block is adjustably connected to the upper side of the first limiting block in the height direction, and the first pressing block and the first limiting block form the first limiting open slot.

[0013] In a preferred embodiment, the upper side of the first limiting block is provided with a long slot, the first pressing block is arranged at the side of the long slot and is provided with a first threaded hole, and a first bolt is arranged in the long slot and connected to the first threaded hole.

[0014] In a preferred embodiment, the second limiting member is composed of a second limiting block and a second pressing block, the second limiting block is inverted L-shaped, and the second pressing block is adjustably connected to the lower side of the second limiting block in the height direction, and the second pressing block and the second limiting block form the second limiting open slot.

[0015] In a preferred embodiment, the side of the second limiting block is provided with an open slot in the height direction, the second pressing block is provided with a connecting protrusion, the connecting protrusion is arranged in the open slot and is provided with a second threaded hole, and a second bolt is arranged at the top end of the open slot and connected to the second threaded hole.

[0016] In a preferred embodiment, the fastener is a screw rod, the first limiting member is provided with a first connecting hole, the second limiting member is provided with a second connecting hole, and the second connecting hole is provided with a threaded connecting section or a connecting nut which is matched with the screw rod.

[0017] Further, the first limiting member is further provided with annular protrusions with the center axis of the first connecting hole as the center, and the second limiting member is correspondingly provided with annular grooves with the center axis of the second connecting hole as the center.

[0018] Further, the outer end of the screw rod is fixedly connected with a hand knob.

[0019] Preferably, the first limiting member and the second limiting member are integrally injection molded by plastic.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] 1. The fixing assembly comprises a first limiting member and a second limiting member, the first limiting member limits the rotation of the first folding rod through a first limiting part, the second limiting member limits the rotation of the second folding rod through a second limiting part, and the first limiting member and the second limiting member are fastened and connected through a fastener. The fixing assembly has the advantages that the installation and disassembly are extremely simple, the disassembly does not affect the folding of the stairs, the fixing of the unfolded existing folding stairs is facilitated, the first limiting part and the second limiting part can limit the rotation of the first folding rod and the second folding rod respectively, the limiting stability is high, and the user only needs to purchase the fixing assembly.

[0022] 2. The fixing assembly further comprises a disengaging limiting part on the second limiting member and located on the side surface of the inner side wall of the first folding rod. The disengaging limiting part is blocked by the inner side wall of the first folding rod, so that the whole fixing assembly is prevented from disengaging from the outside.

[0023] 3. The first limiting member is further provided with annular protrusions, and the second limiting member is correspondingly provided with annular grooves. The annular protrusions and the annular grooves are matched, so that the first limiting member and the second limiting member can be positioned at any angle, so as to meet the demand of adjusting the X-shaped folding rod at any angle. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of the utility model embodiment one.

[0025] Figure 2 It is an installation schematic view of the utility model embodiment one. Figure 1 .

[0026] Figure 3 It is an installation schematic view of the utility model embodiment one. Figure 2 .

[0027] Figure 4 It is an exploded schematic view of the utility model embodiment one.

[0028] Figure 5It is the structure schematic view of the second embodiment of the utility model.

[0029] Figure 6 It is the installation schematic view of the second embodiment of the utility model.

[0030] Figure 7 It is the structure schematic view of the third embodiment of the utility model.

[0031] Figure 8 It is the exploded schematic view of the first limiting piece of the third embodiment of the utility model.

[0032] Figure 9 It is the exploded schematic view of the second limiting piece of the third embodiment of the utility model.

[0033] Figure 10 It is the exploded schematic view of the fourth embodiment of the utility model. DETAILED DESCRIPTION

[0034] The specific implementation of the utility model is described below with reference to the drawings. In order to fully understand the utility model, many details are described below, but the utility model can be implemented without these details for those skilled in the art. For well-known components, methods and processes, the following will not be described in detail.

[0035] Embodiment one

[0036] A folding stair fixing assembly, referring to Figure 1 , comprising a first limiting piece 10, a second limiting piece 20 and a fastener 30. In combination Figure 2 , the first limiting piece 10 is arranged on the first folding rod 1 outside the X-shaped folding rod, and the first limiting piece 10 is provided with a first limiting part for limiting the rotation of the first folding rod 1 when the X-shaped folding rod is unfolded. The second limiting piece 20 is arranged on the second folding rod 2 inside the X-shaped folding rod, and the second limiting piece is provided with a second limiting part for limiting the rotation of the second folding rod 2 when the X-shaped folding rod is unfolded. The first limiting piece 10 and the second limiting piece 20 are fastened and connected by the fastener 30.

[0037] Referring to Figure 3 and Figure 4 , the first limiting part shown in the embodiment is a first limiting open slot 11, which is detachably clamped on the first folding rod 1, and the second limiting part is a second limiting open slot 21, which is detachably clamped on the second folding rod 2. In order to clamp the first limiting open slot 11 on the first folding rod 1 and the second limiting slot 21 on the second folding rod 2, a plurality of convex strips (not shown in the figure) can be arranged on the upper and lower inner side walls of the first limiting open slot 11 and the upper and lower inner side walls of the second limiting open slot 21.

[0038] Referring to Figure 2And Figure 4 The common cross section of the first folding rod 1 and the second folding rod 2 is rectangular. The cross section of the first limiting opening slot 11 and the second limiting opening slot 21 of the embodiment is "[".

[0039] Referring to Figure 3 And Figure 4 In order to prevent the entire fixing assembly from being pulled out from the outside after being fixed, the second limiting part 20 is further provided with an out-limiting limiting part 22, which is formed by extending the end of the upper side wall and / or the end of the lower side wall of the second limiting opening slot 21 to the side of the first folding rod 1 and is blocked by the inner side wall of the first folding rod 1. Since the included angle between the first folding rod 1 and the second folding rod 2 of the embodiment is an acute angle, although the out-limiting limiting part 22 is formed by extending the end of the upper side wall and the end of the lower side wall of the second limiting opening slot 21 to the side of the first folding rod 1, in fact, only the out-limiting limiting part 22 formed by the extension of the end of the upper side wall has contact with the inner side of the first folding rod 1.

[0040] Referring to Figure 4 The fastener 30 is a screw, the first limiting part 10 is provided with a first connecting hole 100, the second limiting part 20 is provided with a second connecting hole 200, and a threaded connecting section matched with the screw is arranged in the second connecting hole 200. The screw passes through the first connecting hole 100 and is fastened and connected with the threaded connecting section in the second connecting hole 200. In order to facilitate the rotation of the screw, the outer end of the screw is fixedly connected with a hand knob 31.

[0041] Referring to Figure 4 The first limiting part 10 is further provided with an annular convex tooth 101 with the center axis of the first connecting hole 100 as the center, and the second limiting part 20 is correspondingly provided with an annular tooth groove 201 with the center axis of the second connecting hole 200 as the center. The annular convex tooth 101 and the annular tooth groove 201 can realize the positioning of the first limiting part 10 and the second limiting part 20 at any angle, so as to adapt to the demand of adjusting the X-shaped folding rod at any angle.

[0042] The first limiting part 10 and the second limiting part 20 are preferably integrally injection molded by plastic.

[0043] Embodiment Two

[0044] The main difference between the embodiment and the embodiment one is that referring to Figure 5 And Figure 6 The cross section of the first limiting opening slot 11 of the embodiment is L-shaped, and the cross section of the second limiting opening slot 21 is "[". Since the first folding rod 10 will only move along the direction of the arrow A under force when the X-shaped folding rod is unfolded, Figure 6The first limiting opening slot 11 is L-shaped, so that the first folding rod 1 is limited from rotating when the X-shaped folding rod is unfolded and the stair surface is stressed (by a pet stepping on it). When the folding stairs are folded, the first folding rod 1 is adjusted along the height direction, and the first limiting opening slot 11 is L-shaped, so that the first folding rod 1 is adjusted along the height direction without disassembling the fixed components. Figure 6 The first folding rod 1 is adjusted along the height direction without disassembling the fixed components.

[0045] Embodiment Three

[0046] The main difference between the present embodiment and Embodiment One is that the first limiting member 10 is composed of a first limiting block 13 and a first pressing block 14. Figures 7 to 9 The first limiting block 13 is L-shaped, and the first pressing block 14 is adjustably connected to the upper side of the first limiting block 13 along the height direction, and the first pressing block 14 and the first limiting block 13 form the first limiting opening slot. The second limiting member 20 is composed of a second limiting block 23 and a second pressing block 24. The second limiting block 23 is inverted L-shaped, and the second pressing block 24 is adjustably connected to the lower side of the second limiting block 23 along the height direction, and the second pressing block 24 and the second limiting block 23 form the second limiting opening slot.

[0047] The first limiting block 13 has a long hole 131 on the upper side, and the first pressing block 14 is arranged on the side of the long hole 131 and has a first threaded hole 141. A first bolt 15 is arranged in the long hole 131 and connected to the first threaded hole 141. The second limiting block 23 has an opening slot 231 on the side along the height direction, and the second pressing block 24 has a connecting protrusion 241 arranged in the opening slot 231 and having a second threaded hole 242. A second bolt 25 is arranged in the top end of the opening slot 231 and connected to the second threaded hole 242.

[0048] The structure of the first limiting member 10 and the second limiting member 20 makes the opening of the first limiting opening slot and the second limiting opening slot adjustable, which is applicable to limiting folding rods of different widths and expands the application range of the present utility model.

[0049] Embodiment Four

[0050] The main difference between the present embodiment and Embodiment One is that the first limiting member 10 is composed of a first limiting block 13 and a first pressing block 14. Figure 10In order to make the first limiting piece 10 and the second limiting piece 20 connect more firmly, the second connecting hole on the second limiting piece 20 is not provided with a threaded section, but a sink groove 202 is arranged on the end face opposite to the first connecting hole 100, a connecting nut 23 is fixedly installed in the sink groove 202, and the screw rod is connected with the connecting nut 23 through the first connecting hole 100 and the second connecting hole.

[0051] The above is only a specific embodiment of the present application, but the design concept of the present application is not limited thereto, and any non-substantial change of the present application by using the concept should belong to the act of infringing the protection scope of the present application.

Claims

1. A folding stair fixture assembly, characterized by: The first limiting member is arranged on the first folding rod outside the X-shaped folding rod, and is provided with a first limiting part for limiting rotation of the first folding rod when the X-shaped folding rod is unfolded; the second limiting member is arranged on the second folding rod inside the X-shaped folding rod, and is provided with a second limiting part for limiting rotation of the second folding rod when the X-shaped folding rod is unfolded, and the first limiting member and the second limiting member are fastened and connected through the fastener.

2. A fixed folding stair assembly as defined in claim 1, wherein: The second limiting member is further provided with a disengagement limiting part located on the side of the inner side wall of the first folding rod.

3. A fixed folding stair assembly as defined in claim 2 wherein: The first limiting part is a first limiting open slot which is detachably clamped on the first folding rod; the second limiting part is a second limiting open slot which is detachably clamped on the second folding rod.

4. A fixed folding stair assembly as defined in claim 3 wherein: The disengagement limiting part is formed by extending the end of the upper side wall and / or the end of the lower side wall of the second limiting open slot to the side of the first folding rod, and is blocked by the inner side wall of the first folding rod.

5. A fixed folding stair assembly as defined in claim 3 wherein: The cross sections of the first folding rod and the second folding rod are both rectangular, the cross section of the first limiting open slot is L-shaped or "["-shaped, and the cross section of the second limiting open slot is "["-shaped.

6. A fixed folding stair assembly as defined in claim 3 wherein: The first limiting member is composed of a first limiting block and a first pressing block, the first limiting block is L-shaped, and the first pressing block is adjustably connected to the upper side of the first limiting block in the height direction, and the first pressing block and the first limiting block form the first limiting open slot.

7. A fixed folding stair assembly as claimed in claim 6, wherein: The upper side of the first limiting block is provided with a long hole, the first pressing block is arranged on the side of the long hole and is provided with a first threaded hole, and a first bolt is arranged in the long hole and connected with the first threaded hole.

8. A fixed folding stair assembly as defined in claim 3 wherein: The second limiting member is composed of a second limiting block and a second pressing block, the second limiting block is inverted L-shaped, and the second pressing block is adjustably connected to the lower side of the second limiting block in the height direction, and the second pressing block and the second limiting block form the second limiting open slot.

9. A fixed folding stair assembly as claimed in claim 8, wherein: The side of the second limiting block is provided with an open slot in the height direction, the second pressing block is provided with a connecting convex part, the connecting convex part is arranged in the open slot and is provided with a second threaded hole, and a second bolt is arranged in the top end of the open slot and connected with the second threaded hole.

10. A fixed folding stair assembly as defined in claim 1 wherein: The fastener is a screw rod, the first limiting member is provided with a first connecting hole, the second limiting member is provided with a second connecting hole, and the second connecting hole is provided with a threaded connecting section or a connecting nut matched with the screw rod.

11. A fixed folding stair assembly as claimed in claim 10, wherein: The first limiting member is further provided with an annular convex tooth with the center axis of the first connecting hole as the center, and the second limiting member is correspondingly provided with an annular tooth groove with the center axis of the second connecting hole as the center.

12. A fixed folding stair assembly as defined in claim 10 wherein: The outer end of the screw rod is fixedly connected with a hand knob.

13. A fixed folding stair assembly as defined in claim 1 wherein: The first limiting member and the second limiting member are integrally injection molded by plastic.

Images