Sleeve connected with supporting shaft

Abstract

The sleeve is connected with the supporting shaft, a first connecting cavity is formed in one side of a sleeve body, a second connecting cavity is formed in the other side of the sleeve body, two symmetrical rails are arranged on the side face of the first connecting cavity, and the upper end of the first supporting foot is arranged in the rails through a first rotating shaft; the second supporting leg is fixed to the upper end and the lower end of the rail in an up-and-down moving mode along the rail and corresponds to the folded and unfolded state of the first supporting leg, and the upper end of the second supporting leg is rotatably connected into the second connecting cavity through a second rotating shaft. The folding table has the advantages that the first support can stretch out and draw back through the arrangement of the rail, the amplitude is expanded in the unfolded state, placing is convenient and occupied space is reduced in the folded state, the structure is simple, and installation and use are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting support devices, in particular to a sleeve connecting a support shaft. Background Art

[0002] The existing sleeve cannot be conveniently and reliably folded after the connecting legs, and the existing connecting legs have a small opening range. If a large opening range is required, one of the two legs will be long and the other short, which will be difficult to place when folded. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a sleeve for connecting a support shaft.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a sleeve connected to the support shaft includes a sleeve body, a first connecting cavity is provided on one side of the sleeve body, a second connecting cavity is provided on the other side of the sleeve body, two symmetrical tracks are provided on the side of the first connecting cavity, the upper end of the first support leg is set in the track through a first rotating shaft, and moves up and down along the track and is fixed at the upper and lower ends of the track corresponding to the folded and opened states of the first support leg, and the upper end of the second support leg is rotatably connected to the second connecting cavity through a second rotating shaft.

[0005] Furthermore, the track includes a first horizontal section, a vertical section and a second horizontal section. The vertical section is connected to the first horizontal section above and the second horizontal section is connected to the second horizontal section below. The first horizontal section corresponds to the folded state of the first leg and the second horizontal section corresponds to the opened state of the first leg.

[0006] Furthermore, a nut mounting hole is provided at the end of the first horizontal section, and a thread is provided on one side of the first rotating shaft. The first rotating shaft is locked by turning the knob on the first rotating shaft when the first leg is folded.

[0007] Furthermore, a thread is provided on one side of the second rotating shaft, and the first rotating shaft is locked by a nut.

[0008] Furthermore, a first baffle is provided on the outer side of the first connecting cavity, and a first arc-shaped concave surface for engaging with the first supporting leg is provided on the lower end of the first baffle.

[0009] Furthermore, a second baffle is provided on the outer side of the second connecting cavity, and a second arc-shaped concave surface for engaging with the second supporting leg is provided at the lower end of the second baffle.

[0010] Furthermore, a connecting tube connection cavity is provided in the sleeve body, a V-shaped hollow is provided on the connecting wall above the connecting tube connection cavity, the V-shaped hollow gradually shrinks downward, a thread for connecting and fixing the screw sleeve is provided outside the connecting wall, and the connecting wall gradually thickens from top to bottom.

[0011] Furthermore, support leg sleeves are sleeved on the lower ends of the first support leg and the second support leg.

[0012] Furthermore, the lower end surface of the support leg sleeve is a curved surface.

[0013] Furthermore, ends of the first horizontal section and the second horizontal section are both concave arc surfaces corresponding to the first rotating shaft.

[0014] The beneficial effects of the present invention are as follows: through the setting of the track, the first bracket can be extended and retracted, the amplitude can be expanded in the open state, and it is convenient to place and reduce the occupied space in the folded state. The structure is simple and the installation and use are convenient; the V-shaped hollow and gradually thickened connecting wall gradually closes under the action of the fixing screw sleeve and fits tightly to the corresponding connecting pipe, realizing a convenient connection that does not require external tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the invention.

[0016] Figure 2 It is a schematic diagram of the opening structure of the invention.

[0017] Figure 3 It is a folded schematic diagram of the invention. DETAILED DESCRIPTION

[0018] The following will be combined with the attached embodiment of the present invention Figure 1-3 , the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Example 1 Reference Figure 1-3 The sleeve connected to the support shaft includes a sleeve body 1, a first connecting cavity 2 is provided on one side of the sleeve body, a second connecting cavity 3 is provided on the other side of the sleeve body, two symmetrical tracks 4 are provided on the side of the first connecting cavity, the upper end of the first support leg 6 is set in the track through the first rotating shaft 5, and moves up and down along the track and is fixed at the upper and lower ends of the track corresponding to the folded and opened states of the first support leg, and the upper end of the second support leg 7 is rotatably connected to the second connecting cavity through the second rotating shaft 8.

[0020] The track is connected to the sleeve of the support shaft, and includes a first horizontal section 41, a vertical section 42 and a second horizontal section 43. The first horizontal section is connected to the top of the vertical section, and the second horizontal section is connected to the bottom of the vertical section. The first horizontal section corresponds to the folded state of the first leg, and the second horizontal section corresponds to the opened state of the first leg.

[0021] A sleeve connected to the support shaft has a nut mounting hole 44 at the end of the first horizontal section, and a thread is provided on one side of the first rotating shaft. The first rotating shaft is locked by turning the knob on the first rotating shaft when the first leg is folded.

[0022] A sleeve connected to the support shaft, a thread is provided on one side of the second rotating shaft, and the first rotating shaft is locked by a nut.

[0023] A sleeve connected to the support shaft, a first baffle 21 is provided on the outer side of the first connecting cavity, and a first arc-shaped concave surface 211 is provided at the lower end of the first baffle to engage with the first support leg.

[0024] A sleeve connected to the support shaft, a second baffle 31 is provided on the outer side of the second connecting cavity, and a second arc-shaped concave surface 311 for engaging with the second supporting leg is provided at the lower end of the second baffle.

[0025] A sleeve connected to the support shaft has a connecting pipe connecting cavity 11 in the sleeve body, a V-shaped hollow 12 is opened on the connecting wall above the connecting pipe connecting cavity, the V-shaped hollow gradually shrinks downward, a thread connecting and fixing the screw sleeve 9 is arranged outside the connecting wall, and the connecting wall gradually thickens from top to bottom.

[0026] A sleeve connected to the support shaft, and support leg sleeves 10 are sleeved on the lower ends of the first support leg and the second support leg.

[0027] The sleeve connected to the support shaft has an arc surface at the lower end of the support leg sleeve.

[0028] The ends of the first horizontal section and the second horizontal section of the sleeve connected to the support shaft are both concave arc surfaces 45 corresponding to the first rotating shaft.

[0029] The sleeve connected to the support shaft, the V-shaped hollow and gradually thickened connection wall are gradually contracted under the action of the fixed screw sleeve, and are tightly attached to the corresponding connection pipe, so as to realize a convenient connection without the need for external tools.

[0030] A sleeve connected to the support shaft and an inner wall of the fixed screw sleeve are provided with corresponding threads.

[0031] The sleeve connected to the support shaft has a concave and convex surface on the outside of the fixed screw sleeve for easy force application.

[0032] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sleeve connected to a support shaft, comprising a sleeve body, characterized in that: A first connecting cavity is provided on one side of the sleeve body, and a second connecting cavity is provided on the other side of the sleeve body. Two symmetrical tracks are provided on the side of the first connecting cavity. The upper end of the first leg is set in the track through a first rotating shaft, and moves up and down along the track and is fixed at the upper and lower ends of the track corresponding to the folded and opened states of the first leg. The upper end of the second leg is rotatably connected to the second connecting cavity through a second rotating shaft.

2. The sleeve for connecting the support shaft according to claim 1, characterized in that: The track includes a first horizontal section, a vertical section and a second horizontal section. The vertical section is connected to the first horizontal section above and the second horizontal section is connected to the second horizontal section below. The first horizontal section corresponds to the folded state of the first leg, and the second horizontal section corresponds to the opened state of the first leg.

3. The sleeve for connecting the support shaft according to claim 2, characterized in that: A nut mounting hole is provided at the end of the first horizontal section, and a thread is provided on one side of the first rotating shaft. The first rotating shaft is locked by turning the knob on one side of the first rotating shaft when the first leg is folded through the nut.

4. The sleeve for connecting the support shaft according to claim 3, characterized in that: One side of the second rotating shaft is provided with a thread, and the first rotating shaft is locked by a nut.

5. The sleeve for connecting a support shaft according to claim 1, characterized in that: A first baffle is disposed on the outer side of the first connecting cavity, and a first arc-shaped concave surface for engaging with the first supporting leg is disposed on the lower end of the first baffle.

6. The sleeve for connecting a support shaft according to claim 1, characterized in that: A second baffle is disposed on the outer side of the second connecting cavity, and a second arc-shaped concave surface for engaging with the second supporting leg is disposed on the lower end of the second baffle.

7. The sleeve for connecting a support shaft according to claim 1, characterized in that: A connecting pipe connection cavity is arranged in the sleeve body, a V-shaped hollow is arranged on the connecting wall above the connecting pipe connection cavity, the V-shaped hollow gradually decreases downwards, a thread for connecting and fixing the screw sleeve is arranged outside the connecting wall, and the connecting wall gradually thickens from top to bottom.

8. The sleeve for connecting a support shaft according to claim 1, characterized in that: The lower ends of the first supporting leg and the second supporting leg are both provided with supporting leg sleeves.

9. The sleeve for connecting a support shaft according to claim 8, characterized in that: The lower end surface of the supporting leg sleeve is a curved surface.

10. The sleeve for connecting a support shaft according to claim 2, characterized in that: The ends of the first horizontal section and the second horizontal section are both concave arc surfaces corresponding to the first rotating shaft.

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