CN212203841U - Column device and air supply device - Google Patents

Abstract

The utility model discloses a stand device and air supply arrangement, stand device includes: a sleeve; the upright post is embedded and matched with the sleeve, and can move relative to the sleeve to change the length of the upright post extending out of the sleeve; the guide part is arranged on the upright post and used for limiting the motion stroke of the upright post relative to the sleeve, the guide part and the upright post form an upright post assembly, and the upright post assembly extends into the sleeve from one open end of the sleeve. From this, through sleeve pipe, stand and guide part cooperation, at the in-process of assembly stand device, install the guide part in the stand earlier, then stretch into the intraductal portion of cover with the stand subassembly, compare with prior art, the upper end of stand need not stretch out sheathed tube upper end, sets up the assembly degree of difficulty that can reduce the stand device like this, can promote the assembly efficiency of stand device to can promote the production efficiency of stand device.

Description

Column device and air supply device

Technical Field

The utility model belongs to the technical field of life electrical apparatus and specifically relates to a stand device and have air supply arrangement of this stand device are related to.

Background

Among the correlation technique, current stand device has sleeve pipe and stand, and the length of stand is greater than sheathed tube length, and at the in-process of assembly stand device, need stretch into the sheathed tube earlier the stand from sheathed tube lower extreme, and the upper end of stand stretches out sheathed tube upper end, then installs the guide part in the upper end of stand, leads to the assembly efficiency of stand device to reduce, influences the production efficiency of stand device.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a stand device, this stand device can reduce the assembly degree of difficulty of stand device, can promote stand device's assembly efficiency to can promote stand device's production efficiency.

The utility model discloses a stand device is further provided.

The utility model discloses a stand device is further provided.

The utility model discloses an air supply arrangement is further provided.

According to the utility model discloses a stand device includes: a sleeve; the upright post is embedded and matched with the sleeve, and can move relative to the sleeve to change the length of the upright post extending out of the sleeve; the guide part is arranged on the upright post and used for limiting the motion stroke of the upright post relative to the sleeve, the guide part and the upright post form an upright post assembly, and the upright post assembly extends into the sleeve from one open end of the sleeve.

According to the utility model discloses a stand device through sleeve pipe, stand and guide part cooperation, at the in-process of assembly stand device, installs the guide part in the stand earlier, then stretches into the intraductal portion of cover with the stand subassembly, compares with prior art, and the upper end of stand need not stretch out sheathed tube upper end, sets up the assembly degree of difficulty that can reduce stand device like this, can promote stand device's assembly efficiency to can promote stand device's production efficiency.

In some examples of the invention, the lower end of the sleeve is open, and the post assembly extends upwardly into the sleeve from the lower end of the sleeve.

In some examples of the invention, the upper end of the sleeve has a fuselage connection.

In some examples of the invention, the body connection portion is configured as a body connection thread.

In some examples of the invention, the guide is mounted to an upper end of the upright.

In some examples of the present invention, the column device further includes: the lower stroke limiting piece is fixed in the sleeve and is suitable for being in limiting fit with the guide part so as to limit the limit stroke of the upright post moving downwards relative to the sleeve.

In some examples of the present invention, the lower stroke limiting member is sleeved on the column assembly, with the lower stroke limiting member the column assembly is extended from the open end into the inside of the casing.

In some examples of the present invention, the column device further includes: a first fastener securing the down travel stop to the sleeve.

In some examples of the present invention, the first fastener is inserted into the lower stroke limiter and fixed to the sleeve from a side of the lower stroke limiter away from the sleeve.

In some examples of the present invention, the open end of the sleeve has a convex portion formed thereon, the lower stroke limiting member is embedded in the open end of the sleeve, and the first fixing member is inserted into the lower stroke limiting member from bottom to top and fixed to the convex portion.

In some examples of the present invention, the lower stroke limiting member is sleeved on the column and allows the column to move relative to the lower stroke limiting member, and the column device further comprises: and the locking assembly is used for locking or releasing the upright post and the lower stroke limiting piece.

In some examples of the present invention, the column device further includes: the upper travel limiting part is arranged in the sleeve and is suitable for limiting and matching with the guide part so as to limit the limit travel of the upright column relative to the upward movement of the sleeve.

In some examples of the present invention, a convex portion that protrudes outward is formed on a circumferential wall of the open end of the sleeve, the convex portion defines an assembly space, and the locking member is provided in the assembly space.

In some examples of the invention, the locking assembly comprises: the friction plate is arranged on the outer side of the upright post; the gasket is positioned on the side wall surface of the friction plate, which is far away from the stand column; the thread blocking piece is fixed with the sleeve, the knob is in thread fit with the thread blocking piece, and one end of the knob, opposite to the gasket, is suitable for being abutted against the gasket so as to lock or release the upright column and the lower stroke limiting piece.

In some examples of the invention, the guide portion comprises: the body and the backstop turn-ups, the backstop turn-ups is located the lateral wall of body, the body cover is located the stand.

In some examples of the invention, the stop flange is provided with a first guide portion, the inner wall surface of the sleeve is provided with a second guide portion which is matched with the first guide portion in a guiding manner so as to limit the column to move along the length direction of the sleeve.

In some examples of the invention, the length of the post is less than the length of the sleeve.

According to the utility model discloses a stand device includes: a sleeve open at one end to form an end opening; the stand column assembly comprises a stand column and a guide part, the stand column is embedded in the sleeve and can move relative to the sleeve, the guide part is arranged at one end of the stand column and limits the movement stroke of the stand column relative to the sleeve, and the size of the end opening allows the stand column with the guide part to pass through.

According to the utility model discloses a stand device includes: a sleeve; the upright post is embedded and matched with the sleeve, and can move relative to the sleeve to change the length of the upright post extending out of the sleeve; the guide part is arranged on the upright post and used for limiting the motion stroke of the upright post relative to the sleeve, and the length of the upright post is smaller than that of the sleeve.

According to the utility model discloses an air supply arrangement, including foretell stand device.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a column arrangement according to an embodiment of the invention;

fig. 2 is a top view of a column arrangement according to an embodiment of the invention;

fig. 3 is a bottom view of a post assembly according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a post assembly according to an embodiment of the present invention;

FIG. 5 is an enlarged view at A in FIG. 4;

fig. 6 is an exploded view of a column arrangement according to an embodiment of the invention;

fig. 7 is an exploded view of another angle of a column assembly according to an embodiment of the present invention;

fig. 8 is a schematic view of a guide portion of a pillar device according to an embodiment of the present invention.

Reference numerals:

a column device 10;

a sleeve 1; a body connecting portion 11; a convex portion 12; an assembly space 13; a second guide portion 14;

a column 2;

a guide part 3; a body 31; a stop flange 32; a first guide portion 33;

a lower stroke limiting member 4; a first fastener 5;

a locking assembly 6; a friction plate 61; a spacer 62; a threaded stop 63; a knob 64;

an upper travel limit 7; a column assembly 8; a second fastening member 9.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A pillar device 10 according to an embodiment of the present invention is described below with reference to fig. 1 to 8.

As shown in fig. 1 to 8, a pillar device 10 according to an embodiment of the present invention includes: a sleeve 1, a column 2 and a guide 3. The stand 2 inlays with sleeve pipe 1 and establishes the cooperation, and it should be noted that, sleeve pipe 1 can overlap the outside at stand 2, and stand 2 can move relative to sleeve pipe 1, that is to say, stand 2 and sleeve pipe 1 can relative motion, when needing to change the stand 2 and stretch out the outer length of sleeve pipe 1, through the relative position of control stand 2 and sleeve pipe 1, can change the stand 2 and stretch out the outer length of sleeve pipe 1 to can make stand device 10 have raising and lowering functions. The guide portion 3 is mounted on the column 2, it can also be understood that the guide portion 3 is disposed on the column 2, the guide portion 3 is used for limiting the movement stroke of the column 2 relative to the casing 1, the guide portion 3 and the column 2 form a column assembly 8, and the column assembly 8 extends into the casing 1 from one open end of the casing 1.

When the upright column 2 and the sleeve 1 move relatively, the guide part 3 limits the movement stroke of the upright column 2 relative to the sleeve 1, so that the upright column 2 and the sleeve 1 can be prevented from being separated, and the assembly reliability of the upright column device 10 can be improved. And, in the in-process of assembling stand device 10, use stand 2 as the benchmark earlier, install guide part 3 on stand 2 with the screw and form stand subassembly 8, then make stand subassembly 8 stretch into the sleeve pipe 1 from one of sleeve pipe 1 open inside, compared with the prior art, when installation guide part 3, this application installs guide part 3 in stand 2 earlier and constitutes stand subassembly 8, then install stand subassembly 8 in sleeve pipe 1, the upper end of stand 2 need not stretch out the upper end of sleeve pipe 1, set up like this and to reduce the assembly degree of difficulty of stand device 10, can promote the assembly efficiency of stand device 10, thereby can promote the production efficiency of stand device 10.

From this, through sleeve pipe 1, stand 2 and the cooperation of guide part 3, at the in-process of assembly stand device 10, install guide part 3 in stand 2 earlier, then stretch into inside the sleeve pipe 1 with stand subassembly 8, compare with prior art, the upper end of stand 2 need not stretch out sleeve pipe 1's upper end, set up the assembly degree of difficulty that can reduce stand device 10 like this, can promote stand device 10's assembly efficiency to can promote stand device 10's production efficiency.

In some embodiments of the utility model, as shown in fig. 4, the lower extreme of sleeve pipe 1 opens the setting, and inside stand subassembly 8 upwards stretched into sleeve pipe 1 from sleeve pipe 1's lower extreme, wherein, when installing stand subassembly 8 and sleeve pipe 1, made stand subassembly 8 stretch into sleeve pipe 1 from sleeve pipe 1's lower extreme, so set up can be convenient for assemble stand subassembly 8 and sleeve pipe 1 together, can make sleeve pipe 1's the form of setting more reasonable.

In some embodiments of the present invention, as shown in fig. 1, 4, 6 and 7, the upper end of the casing 1 has a body connecting portion 11, and the body connecting portion 11 can be connected to the body of the air supply device, so that the assembly of the column device 10 and the body can be realized.

In some embodiments of the present invention, as shown in fig. 1, 4, 6 and 7, the body connecting portion 11 may be configured as a body connecting thread. Wherein, in prior art, the upper end of sleeve pipe is provided with the switching cover, and the stand device links together through switching cover and fuselage. And in this application, be connected with the fuselage through fuselage connecting thread, compared with the prior art, need not set up the switching cover, can reduce the spare part quantity of constituteing stand device 10, can simplify stand device 10's structure, thereby can further promote stand device 10's assembly efficiency, and then can further promote stand device 10's production efficiency, and, also can guarantee the assembly precision of stand device 10 and fuselage, can avoid sleeve pipe 1 and the junction of fuselage to produce the noise, thereby can solve the problem that sleeve pipe and switching cover cooperation produced the noise easily among the prior art. At the same time. The upright post device 10 is connected with the machine body through the threads, so that the upright post device 10 is more reliably connected with the machine body, and the assembling reliability of the upright post device 10 and the machine body can be improved. However, the present invention is not limited to this, and the body connecting portion 11 may be configured to have the same function as the body connecting screw.

In some embodiments of the utility model, as shown in fig. 4, the guide part 3 can be installed in the upper end of stand 2, and the guide part 3 can be installed in the upper end of stand 2 through second fastener 9, and second fastener 9 can be the screw, and when stand subassembly 8 upwards stretched into the sleeve pipe 1 from the lower extreme of sleeve pipe 1 in, the setting can be convenient for assemble guide part 3 inside sleeve pipe 1 like this, can make the arrangement position of guide part 3 more reasonable.

In some embodiments of the present invention, as shown in fig. 4-7, the pillar device 10 may further include: the lower stroke limiting piece 4, the lower stroke limiting piece 4 can be fixed in the sleeve 1, and it can also be understood that the lower stroke limiting piece 4 is located in the sleeve 1 and is fixedly connected with the sleeve 1, wherein, when the upright column 2 moves downwards relative to the sleeve 1, the lower stroke limiting piece 4 is suitable for limiting and matching with the guide part 3, the lower stroke limiting piece 4 can limit the limit stroke of the upright column 2 moving downwards relative to the sleeve 1, and it needs to be explained that after the lower stroke limiting piece 4 is stopped against the guide part 3, the lower stroke limiting piece 4 can block the upright column 2 from continuing to move downwards relative to the sleeve 1, so that the upright column 2 can be prevented from moving out of the sleeve 1, and further the separation of the upright column 2 and the sleeve 1 can be avoided.

In some embodiments of the present invention, the lower stroke limiting piece 4 is sleeved on the outer side of the column assembly 8, and the column assembly 8 with the lower stroke limiting piece 4 extends into the casing 1 from the opened end. In the process of assembling the column device 10, firstly, the column 2 is used as a reference, then the lower stroke limiting piece 4 is sleeved outside the column 2, then the guide part 3 is installed on the column 2 by using a screw, and then the column assembly 8 with the lower stroke limiting piece 4 extends into the interior of the casing 1 from the open end of the casing 1.

In some embodiments of the present invention, as shown in fig. 6 and 7, the pillar device 10 may further include: the lower stroke limiting piece 4 is fixed on the first fastening piece 5 of the sleeve 1, and it can also be understood that the lower stroke limiting piece 4 and the sleeve 1 are assembled together through the first fastening piece 5, wherein the first fastening piece 5 can be set as a screw, so that the lower stroke limiting piece 4 and the sleeve 1 can be stably assembled together, the overall structural strength of the lower stroke limiting piece 4 and the sleeve 1 can be improved, and the lower stroke limiting piece 4 and the sleeve 1 can be prevented from being separated.

The utility model discloses an in some embodiments, first fastener 5 from the lower journey stopper 4 keep away from sleeve pipe 1 one side wear to establish lower journey stopper 4 and with sleeve pipe 1 fixed connection, wherein, as shown in figure 6, first fastener 5 links together with sleeve pipe 1 after wearing to establish lower journey stopper 4 from the downside of lower journey stopper 4, set up like this and can avoid increasing the ascending size of stand device 10 in radial direction, can make the form that sets up of first fastener 5 more reasonable.

In some embodiments of the present invention, as shown in fig. 1 and 4, a convex portion 12 protruding outward is formed on the circumferential wall of the open end of the sleeve 1, the lower stroke limiting piece 4 is embedded into the open end of the sleeve 1, the first fixing piece is fixed with the convex portion 12 by penetrating the lower stroke limiting piece 4 from the bottom to the top, so as to further avoid increasing the size of the column device 10 in the radial direction, and also to ensure that the sleeve 1 and the lower stroke limiting piece 4 are fixedly assembled together.

The utility model discloses an in some embodiments, the outside of stand 2 can be located to lower journey spacing piece 4 cover, and allow the 4 motion of stand 2 relative lower journey spacing piece, that is to say, stand 2 relative lower journey spacing piece 4 can relative motion, when needing to increase the length of stand device 10, the length that makes stand 2 stretch out sleeve pipe 1 through the 4 motion of stand 2 relative lower journey spacing piece increases, thereby increase the length of stand device 10, when needing to reduce the length of stand device 10, the length that makes stand 2 stretch out sleeve pipe 1 through the 4 motion of stand 2 relative lower journey spacing piece reduces, thereby reduce the length of stand device 10.

As shown in fig. 4 and 6, the pillar device 10 may further include: locking Assembly 6, locking Assembly 6 is used for locking or releasing stand 2 and lower journey spacing piece 4, wherein, when needing to adjust the length that stand 2 stretches out sleeve pipe 1, adjust locking Assembly 6 and make locking Assembly 6 release stand 2 and lower journey spacing piece 4, then control stand 2 and 4 movements of 4 relative lower journey spacing pieces, thereby realize the work purpose that adjustment stand 2 stretches out the length of sleeve pipe 1, stand 2 stretches out behind the length control completion of sleeve pipe 1, adjust locking Assembly 6 locking stand 2 and lower journey spacing piece 4, stand 2 does not move relative lower journey spacing piece 4 this moment, the length of stand device 10 can not change.

In some embodiments of the present invention, as shown in fig. 4, the pillar device 10 may further include: the upper stroke limiting part 7 is arranged in the sleeve 1, the upper stroke limiting part 7 is positioned above the lower stroke limiting part 4 and is arranged at intervals, the guide part 3 is positioned between the upper stroke limiting part 7 and the lower stroke limiting part 4, wherein when the upright post 2 moves upwards relative to the sleeve 1, the upper stroke limiting part 7 is suitable for being in limit fit with the guide part 3, the upper stroke limiting part 7 can limit the limit stroke of the upright post 2 moving upwards relative to the sleeve 1, and it needs to be explained that after the upper stroke limiting part 7 is abutted against the guide part 3, the upper stroke limiting part 7 can stop the upright post 2 from moving upwards relative to the sleeve 1, so that the upright post 2 can be further prevented from moving out of the sleeve 1, and further separation of the upright post 2 and the sleeve 1 can be avoided.

In some embodiments of the present invention, as shown in fig. 4, a convex portion 12 protruding outward can be formed on the circumferential wall of the open end of the sleeve 1, the convex portion 12 can define an assembly space 13, the locking component 6 can be disposed in the assembly space 13, the locking component 6 can be assembled on the sleeve 1 by such an arrangement, in the process of assembling the column device 10, the sleeve 1 and the locking component 6 can be assembled together, and then the column component 8 extends upward into the sleeve 1 from the lower end of the sleeve 1, thereby completing the assembly of the column device 10.

In some embodiments of the present invention, as shown in fig. 4 and 6, the locking assembly 6 may include: friction plate 61, spacer 62, threaded catch 63 and knob 64. The friction plate 61 is arranged in the assembly space 13 and located on the outer side of the stand column 2, the gasket 62 can be an iron plate, the gasket 62 is located on the side wall surface, away from the stand column 2, of the friction plate 61, the gasket 62 is in contact with the friction plate 61, the threaded blocking piece 63 is fixedly connected with the sleeve 1, the knob 64 is in threaded fit with the threaded blocking piece 63, it needs to be explained that the threaded blocking piece 63 is provided with a threaded hole, the knob 64 is provided with a bolt, the bolt penetrates through the threaded hole and is in threaded connection with the threaded hole, one end, opposite to the gasket 62, of the knob 64 is suitable for being abutted against the gasket 62, one end, away from the gasket 62, of the bolt is provided with a control portion, the control. Wherein, when needing to release stand 2 and lower journey spacing piece 4, make knob 64 move towards the direction of keeping away from gasket 62 through rotating knob 64, make the frictional force between friction disc 61 and the stand 2 diminish, thereby release stand 2 and lower journey spacing piece 4, make stand 2 relative sleeve pipe 1 can move, when needing to lock stand 2 and lower journey spacing piece 4, make knob 64 move towards the direction of being close to gasket 62 through rotating knob 64, make the frictional force between friction disc 61 and the stand 2 grow, thereby lock stand 2 and lower journey spacing piece 4, make stand 2 relative sleeve pipe 1 can not move, and then can realize the work purpose of locking or releasing stand 2 and lower journey spacing piece 4, so set up the length that can be convenient for adjust stand 2 and stretch out sleeve pipe 1, thereby be convenient for adjust the lift of stand device 10.

In some embodiments of the present invention, as shown in fig. 4 and 8, the guide portion 3 may include: the body 31 and backstop turn-ups 32, backstop turn-ups 32 set up in the lateral wall of body 31, and the outside of body 31 can be located to the stand 2 cover. When the upright column 2 moves downward relative to the sleeve 1, the downward movement of the upright column 2 relative to the sleeve 1 can be limited after the downward movement limiting piece 4 abuts against the stop flange 32, and when the upright column 2 moves upward relative to the sleeve 1, the upward movement of the upright column 2 relative to the sleeve 1 can be limited after the upward movement limiting piece 7 abuts against the stop flange 32.

In some embodiments of the present invention, as shown in fig. 4, the stop flange 32 may be provided with a first guiding portion 33, the first guiding portion 33 may be one of a guiding groove and a guiding protrusion, as shown in fig. 6, the inner wall surface of the casing 1 may be provided with a second guiding portion 14 guiding-engaged with the first guiding portion 33, and the second guiding portion 14 may be the other one of the guiding groove and the guiding protrusion, for example: first guide part 33 is the guide way, and second guide part 14 is the direction arch, and the direction arch extends along sleeve pipe 1's length direction and arranges, and post device assembly is accomplished the back, and the protruding assembly of direction is in the guide way, and when stand 2 removed sleeve pipe 1 relatively, guide way and direction arch can play the direction, limiting displacement, can restrict stand 2 and move along sleeve pipe 1's length direction to can guarantee that stand 2 only moves sleeve pipe 1 relatively in sleeve pipe 1's length direction.

In some embodiments of the present invention, the length of the column 2 is less than the length of the sleeve 1. Wherein, compare with prior art, because the upper end of stand 2 need not stretch out sleeve pipe 1's upper end when the assembly of stand device 10 of this application, consequently set up the length of stand 2 for being less than sleeve pipe 1's length, so set up the material that can save production stand device 10, can reduce stand device 10's manufacturing cost to can make stand 2's length setting more reasonable.

As shown in fig. 1 to 8, a pillar device 10 according to an embodiment of the present invention includes: a sleeve 1 and a post assembly 8. One end of the sleeve 1 is opened to form an end opening, the upright post assembly 8 comprises an upright post 2 and a guide part 3, the upright post 2 is embedded in the sleeve 1 and can move relative to the sleeve 1, the guide part 3 is arranged at one end of the upright post 2 and limits the movement stroke of the upright post 2 relative to the sleeve 1, the size of the end opening allows the upright post 2 with the guide part 3 to pass through, the arrangement can ensure that the upright post 2 with the guide part 3 can be assembled in the sleeve 1 from the end opening, and the smooth assembly completion of the upright post device 10 can be ensured.

And, through sleeve pipe 1, stand 2 and the cooperation of guide part 3, at the in-process of assembly stand device 10, install guide part 3 in stand 2 earlier, then stretch into inside sleeve pipe 1 with stand subassembly 8 from the tip opening, compare with prior art, the upper end of stand 2 need not stretch out sleeve pipe 1's upper end, set up the assembly degree of difficulty that can reduce stand device 10 like this, can promote stand device 10's assembly efficiency to can promote stand device 10's production efficiency.

As shown in fig. 1 to 8, a pillar device 10 according to an embodiment of the present invention includes: a sleeve 1, a column 2 and a guide 3. The cooperation is established with sleeve pipe 1 to stand 2, stand 2 can be relative sleeve pipe 1 motion with the change stand 2 and stretch out the outer length of sleeve pipe 1, guide part 3 is installed in stand 2, guide part 3 is used for restricting the relative sleeve pipe 1's of stand 2 motion stroke, wherein the length of stand 2 is less than sleeve pipe 1's length, wherein, compared with the prior art, because the stand device 10 of this application need not stretch out sleeve pipe 1's upper end when the assembly stand 2's upper end, consequently set up the length of stand 2 into the length that is less than sleeve pipe 1, so set up the material that can save production stand device 10, can reduce stand device 10's manufacturing cost, thereby can make stand 2's length setting more reasonable. And, at the in-process of assembly stand device 10, install guide part 3 in stand 2 earlier, then stretch into inside the sleeve pipe 1 with stand subassembly 8, compare with prior art, the upper end of stand 2 need not stretch out the upper end of sleeve pipe 1, sets up the assembly degree of difficulty that can reduce stand device 10 like this, can promote stand device 10's assembly efficiency to can promote stand device 10's production efficiency.

According to the utility model discloses air supply arrangement, stand device 10 including above-mentioned embodiment, stand device 10 is installed on air supply arrangement, can make air supply arrangement have raising and lowering functions, can adjust air supply arrangement's height, and, at the in-process of assembling stand device 10, install guide part 3 in stand 2 earlier, then stretch into inside sleeve pipe 1 with stand subassembly 8, compared with the prior art, stand 2's upper end need not stretch out sleeve pipe 1's upper end, the setting can reduce stand device 10's the assembly degree of difficulty like this, can promote stand device 10's assembly efficiency, thereby can promote stand device 10's production efficiency, and then can promote air supply arrangement's production efficiency.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (20)

1. A post assembly, comprising:

a sleeve;

the upright post is embedded and matched with the sleeve, and can move relative to the sleeve to change the length of the upright post extending out of the sleeve;

the guide part is arranged on the upright post and used for limiting the motion stroke of the upright post relative to the sleeve, the guide part and the upright post form an upright post assembly, and the upright post assembly extends into the sleeve from one open end of the sleeve.

2. The mast apparatus of claim 1, wherein the lower end of the casing is open, the mast assembly projecting upwardly into the casing from the lower end of the casing.

3. The mast assembly of claim 2, wherein the upper end of the sleeve has a fuselage connection.

4. The mast assembly of claim 3, wherein the fuselage connection portion is configured as a fuselage connection thread.

5. The mast apparatus of claim 2, wherein the guide portion is mounted to an upper end of the mast.

6. The mast apparatus of claim 1, further comprising: the lower stroke limiting piece is fixed in the sleeve and is suitable for being in limiting fit with the guide part so as to limit the limit stroke of the upright post moving downwards relative to the sleeve.

7. The mast apparatus of claim 6, wherein the lower travel limiter is sleeved on the mast assembly, the mast assembly with the lower travel limiter extending from the open end into the interior of the sleeve.

8. The mast apparatus of claim 6, further comprising: a first fastener securing the down travel stop to the sleeve.

9. The column apparatus according to claim 8, wherein the first fastener penetrates the lower stroke limiter from a side of the lower stroke limiter away from the sleeve and is fixed with the sleeve.

10. The column apparatus according to claim 9, wherein a convex portion is formed on a peripheral wall of the open end of the sleeve, the lower stroke limiter is inserted into the open end of the sleeve, and the first fixing member penetrates the lower stroke limiter from bottom to top and is fixed with the convex portion.

11. The mast assembly of claim 6, wherein said lower travel limiter is sleeved on said mast and allows said mast to move relative to said lower travel limiter, said mast assembly further comprising: and the locking assembly is used for locking or releasing the upright post and the lower stroke limiting piece.

12. The mast apparatus of claim 1, further comprising: the upper travel limiting part is arranged in the sleeve and is suitable for limiting and matching with the guide part so as to limit the limit travel of the upright column relative to the upward movement of the sleeve.

13. The post assembly of claim 11 wherein said open end of said sleeve has a peripheral wall formed with a convex projection defining an assembly space, said locking assembly being disposed in said assembly space.

14. The mast assembly of claim 13, wherein the locking assembly comprises:

the friction plate is arranged on the outer side of the upright post;

the gasket is positioned on the side wall surface of the friction plate, which is far away from the stand column;

the thread blocking piece is fixed with the sleeve, the knob is in thread fit with the thread blocking piece, and one end of the knob, opposite to the gasket, is suitable for being abutted against the gasket so as to lock or release the upright column and the lower stroke limiting piece.

15. The post device according to claim 6 or 12, wherein the guide portion comprises: the body and the backstop turn-ups, the backstop turn-ups is located the lateral wall of body, the body cover is located the stand.

16. The column apparatus according to claim 15, wherein the stopper flange is provided with a first guide portion, and the inner wall surface of the sleeve is provided with a second guide portion which is in guide engagement with the first guide portion to restrict the column from moving in the longitudinal direction of the sleeve.

17. A post arrangement according to any of claims 1-14, 16, wherein the length of the post is less than the length of the sleeve.

18. A post assembly, comprising:

a sleeve open at one end to form an end opening;

the stand column assembly comprises a stand column and a guide part, the stand column is embedded in the sleeve and can move relative to the sleeve, the guide part is arranged at one end of the stand column and limits the movement stroke of the stand column relative to the sleeve, and the size of the end opening allows the stand column with the guide part to pass through.

19. A post assembly, comprising:

a sleeve;

the upright post is embedded and matched with the sleeve, and can move relative to the sleeve to change the length of the upright post extending out of the sleeve;

the guide part is arranged on the upright post and used for limiting the motion stroke of the upright post relative to the sleeve, and the length of the upright post is smaller than that of the sleeve.

20. An air supply arrangement, characterized by comprising a post arrangement according to any of claims 1-19.

Images