CN210932443U - Gas spring assembly, lifting structure and medical trolley - Google Patents

Abstract

The utility model discloses a gas spring assembly, a lifting structure and a medical cart, which comprises a stand column, wherein the stand column comprises a first stand column, a guide assembly and a second stand column, and the second stand column is movably arranged on the first stand column through the guide assembly; the gas spring assembly comprises a gas spring having a first locking end and a second locking end, the gas spring is connected to the first upright by the first locking end, and the gas spring is connected to the second upright by the second locking end; wherein, the air spring subassembly still includes retaining member and elastic component, first stand is keeping away from the one end of second stand extension direction is equipped with the installation department that is U type groove structure, set up the bayonet socket that is C shape on the lateral wall of installation department, so that the elastic component passes through the retaining member is installed behind first locking end, the retaining member can pass the bayonet socket will first locking end is fixed on the installation department.

Description

Gas spring assembly, lifting structure and medical trolley

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a gas spring assembly, elevation structure and medical shallow.

Background

Medical shallow is the transport means who is indispensable in the operation of current hospital, and medical shallow can direct influence work efficiency, and traditional medical shallow generally comprises mesa, elevation structure and base, and the mesa passes through elevation structure and is connected with the base.

However, the existing lifting structure generally comprises a gas spring and a vertical column, wherein the gas spring is fixed on the vertical column through a pin shaft or a screw, and the vertical column comprises a second vertical column and a first vertical column, and the gas spring is installed between the second vertical column and the first vertical column and used for driving the second vertical column to move relative to the first vertical column. Therefore, the length of the pin shaft or the screw which is at least greater than or equal to the length of the pin shaft or the screw needs to be vacated on the second upright post or the first upright post for fixing the pin shaft or the screw, so that the structure of the lifting structure is relatively large, and the light and handy design of the medical cart is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gas spring assembly, elevation structure and medical shallow has reduced the air spring and has installed the assembly space at the stand, realizes the light and handy design of medical shallow, also is convenient for the dismantlement and the installation of air spring simultaneously.

According to a first aspect of embodiments of the present application, there is provided a lifting structure for a medical cart, comprising:

the stand column comprises a second stand column, a guide component and a first stand column, wherein the second stand column is movably arranged on the first stand column through the guide component;

a gas spring assembly comprising a gas spring having a first locking end and a second locking end, said gas spring being connected to said first post by said first locking end, said gas spring being connected to said second post by said second locking end;

wherein, the air spring subassembly still includes retaining member and elastic component, first stand is lieing in the one end of second stand extension direction is equipped with the installation department that is U type groove structure, set up the bayonet socket that is C shape on the lateral wall of installation department, work as the retaining member will the elastic component is installed behind the first locking end, first locking end can pass through the retaining member with the cooperation of bayonet socket is fixed on the installation department.

The utility model discloses an among the elevation structure, be equipped with the draw-in groove on the retaining member, the bayonet socket includes:

the first bayonet is circular, and the diameter of the first bayonet is matched with that of the locking piece;

the second bayonet socket is connected on first bayonet socket, and the width is less than the diameter of first bayonet socket and with the diameter looks adaptation of draw-in groove, so that the retaining member can pass through the draw-in groove passes get into behind the second bayonet socket behind the first bayonet socket, first locking end passes through the retaining member is fixed in the first bayonet socket.

The utility model discloses an among the elevation structure, the second bayonet socket all is equipped with the chamfer structure at the both ends of keeping away from first bayonet socket one side.

The utility model discloses an among the elevation structure, the installation department has first lateral wall and second lateral wall, first lateral wall and second lateral wall constitute U type groove structure, the bayonet socket sets up on the first lateral wall, the second lateral wall is equipped with the through-hole structure, the axis of through-hole structure with the axis of first bayonet socket aligns.

The utility model discloses an among the elevation structure, the retaining member is the round pin axle, so that first locking end is installed behind the U type groove structure, the round pin axle can along the axis direction removal and the joint of first bayonet socket are in among the through-hole structure.

The utility model discloses an among the elevation structure, the second stand is keeping away from the one end of installation department is equipped with the fixed part that is used for installing second locking end, the structure of fixed part with the structure of installation department is the same.

The utility model discloses an among the elevation structure, first stand and second stand form by panel rolling or welding, the transversal C font of personally submitting of first stand, the transversal mountain font of personally submitting of second stand, second stand nested install in the first stand.

The utility model discloses an among the elevation structure, first stand includes first stand bottom and two certainly first edge, two that first stand bottom extends perpendicularly upwards first edge sets up respectively the both sides of first stand bottom, and two first edge is keeping away from the mid portion of first stand bottom one end is equipped with the orientation the inboard second edge of first stand.

The utility model discloses an among the elevation structure, the second stand includes second stand bottom, boss and two certainly the first outer fringe of second stand bottom perpendicular upwards extending, two first outer fringe sets up the both sides of second stand bottom, the boss is formed and sets up two by a plurality of panel welding between the first outer fringe.

According to a second aspect of the embodiment of the application, a gas spring assembly is provided for a lifting structure of a medical cart, the lifting structure comprises a second stand column and a first stand column movably installed in the second stand column, the gas spring assembly comprises a locking member, an elastic member and a gas spring with a first locking end and a second locking end, the elastic member is installed behind the first locking end or the second locking end through the locking member, the first locking end and the elastic member are connected with one of the second stand column or the first stand column through the locking member, and/or the second locking end and the elastic member are connected with the other of the second stand column or the first stand column through the locking member.

According to the third aspect of the embodiment of the application, a medical cart is provided, which comprises a base, a table top for placing a host and the lifting structure, wherein the base is provided with rollers, a first upright column in the lifting structure is arranged on an end face of the base, which deviates from the rollers, and a second upright column in the lifting structure is connected with the table top and used for adjusting the height between the table top and the base.

The technical scheme provided by the embodiment of the application can have the following beneficial effects: the application designs an air spring assembly, a lifting structure and a medical cart, wherein the lifting structure comprises a stand column, the stand column comprises a second stand column and a first stand column, the air spring assembly comprises an air spring, a locking part and an elastic part, one end, far away from the extension direction of the second stand column, of the first stand column is provided with an installation part in a U-shaped groove structure, and a C-shaped bayonet is arranged on the side wall of the installation part, so that the locking part and the elastic part can be installed at the first locking end firstly, and then the locking part is matched with the bayonet to fix the first locking end on the installation part, so that the situation that a part of space is required to be arranged on the first stand column or the second stand column for installation of the locking part is reduced, the structure of the lifting structure is more compact, and the light design of the; and the structure is simple, the installation and the disassembly of the gas spring are convenient, and the maintenance of the subsequent gas spring assembly is facilitated.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a lifting structure according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic cross-sectional view of the lift structure of FIG. 1;

FIG. 4 is an enlarged schematic view of FIG. 3 at B;

FIG. 5 is an exploded schematic view of the lift structure of FIG. 1;

FIG. 6 is a schematic structural view of the second upright of FIG. 1;

FIG. 7 is a schematic structural view of the first upright of FIG. 1;

FIG. 8 is an enlarged schematic view of FIG. 7 at C;

FIG. 9 is a schematic structural view of the gas spring of FIG. 1;

FIG. 10 is a schematic view of the retaining member of FIG. 9;

FIG. 11 is a schematic structural view of the guide assembly of FIG. 1;

fig. 12 is a schematic structural view of a medical cart according to another embodiment of the present invention;

fig. 13 is another schematic structural view of the medical cart in fig. 12.

Description of reference numerals:

100. a lifting structure;

10. a column; 11. a first upright post; 111. a base mounting portion; 112. a movable cavity; 113. an installation part; 1131. a bayonet; 11311. a first bayonet; 11312. a second bayonet; 1132. a via structure; 114. a guide rail mounting part; 115. the bottom of the first upright post; 116. a first edge; 117. a second edge; 12. a second upright post; 121. a table top mounting part; 122. a fixed part; 123. the bottom of the second upright post; 124. a first outer edge; 125. a boss; 1251. a protrusion; 126. an accommodating cavity; 13. a guide assembly; 131. a guide slide rail; 132. a guide slider;

20. a gas spring assembly; 21. a gas spring; 211. a first locking end; 212. a second locking end; 213. releasing the valve; 22. a locking member; 221. a card slot; 23. an elastic member;

200. a table top;

300. a base; 301. a roller;

400. a host.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

The lifting structure is mainly used for medical carts, the medical carts can comprise one or more of rescue carts, treatment carts, emergency carts, instrument carts and instrument carts, but the lifting structure is not limited to the above list, and users can set according to actual conditions. In the following embodiments, the lifting structure is mainly described by taking the instrument cart as an example, and for other medical carts, the description of this embodiment is omitted.

As shown in fig. 1 to 3, the lifting structure 100 of the present application includes a column 10 and a gas spring assembly 20, wherein the column 10 includes a first column 11, a second column 12 and a guide assembly 13, wherein the first column 11 may be an outer column of the column 10, and the second column 12 may be an inner column of the column 10. Specifically, the first upright post 11 is provided with a movable cavity 112 penetrating through two ends of the first upright post 11, and the second upright post 12 is movably installed in the movable cavity 112 in the first upright post 11 through the guide component 13. Gas spring assembly 20 includes a gas spring 21 having a first locking end 211 and a second locking end 212, gas spring 21 being coupled to first column 11 via first locking end 211, and gas spring 21 being coupled to second column 12 via second locking end 212 such that second column 12 is movable relative to first column 11 via gas spring 21.

In this embodiment, gas spring assembly 20 further includes retaining member 22 and elastic member 23, and first pillar 11 is equipped with mounting portion 113 that is a U-shaped groove structure at the one end that is located second pillar 12 extension direction, and bayonet 1131 that is C-shaped is seted up on the lateral wall of this mounting portion 113, can install retaining member 22 and elastic member 23 behind first locking end 211 like this, and retaining member 22 is fixed on mounting portion 113 together with first locking end 211 through bayonet 1131 again.

The width of the movable cavity 112 is matched with the width of the second upright post 12, the lower end surface of the second upright post 12 is attached to the bottom of the movable cavity 112, the gas spring 21 is installed on the second upright post 12, wherein one end of the gas spring 21 passes through the second upright post 12 and then is fixed on the first upright post 11, and the other end of the gas spring 21 is directly fixed on the second upright post 12, so that the structure of the upright post 10 is more compact, and the design requirement of miniaturization of the medical cart is facilitated.

Specifically, because the installation department 113 is U type groove structure, and the bayonet 1131 that is the C-shaped is seted up to the lateral wall of installation department 113, can install elastic component 23 on first locking end 211 through retaining member 22 earlier like this, and then utilize the breach of bayonet 1131 to pass retaining member 22 behind bayonet 1131 and fix on installation department 113 to can reduce the required installation space of the positive direct mount retaining member 22 of installation department 113 and elastic component 23. For example, the first locking end 211 is first installed on the installation portion 113, and then is fixed by the locking member 22 and the elastic member 23, such a fixing method requires a large space, especially the locking member 22 is just put into one side of the installation portion 113, and the reserved space is at least equal to the length of the locking member 22, which is not favorable for the light design of the medical cart.

In addition, the first upright column 11 is connected with the second upright column 12 through the guide assembly 13, so that the second upright column 12 can always move along the guide direction of the guide assembly 13, and the bearing capacity of the lifting structure 100 is improved. In addition, the gas spring 21 needs to be limited by the elastic part 23 in the assembling process, the accuracy of the elastic part 23 is not high, and particularly, the accuracy of the elastic part 23 is easy to deform and fall off in the assembling process, so that the service life of the gas spring 21 is indirectly shortened; or the gas spring 21 is directly fixed to the mounting portion 113 to achieve rigid fixation of the gas spring 21, which tends to cause deflection of the gas spring 21 during assembly to affect the service life of the gas spring. The present application utilizes the guide assembly 13 without concern about the accuracy of the spring 23 and the deflection of the gas spring 21 during installation.

Referring to fig. 2 to 10, in an alternative embodiment, the bayonet 1131 includes a first bayonet 11311 in a circular shape and a second bayonet 11312 connected to the first bayonet 11311, wherein the locking member 22 is provided with a slot 221, specifically, the slot 221 is disposed in the middle of the locking member 22, the diameter of the first bayonet 11311 is adapted to the diameter of the locking member 22, the width of the second bayonet 11312 is smaller than the diameter of the first bayonet, and the width of the second bayonet 11312 is adapted to the diameter of the slot 221.

In the present embodiment, the second bayonet 11312 is similar to a strip shape, and the main purpose of the strip shape is to communicate the first bayonet 11311 with the side wall of the mounting portion 113, so that the locking member 22 can enter the first bayonet 11311 through the second bayonet 11312, specifically, the clamping groove 221 enters the first bayonet 11311 along the second bayonet 11312, and then the locking member 22 moves along the axis of the first bayonet 11311, since the diameter of the locking member 22 is greater than the width of the second bayonet 11312, that is, the first locking end 211 can lock the locking member 22 in the first bayonet 11311.

In an alternative embodiment, the second bayonet 11312 is provided with a chamfer structure (not shown) at both ends of the side away from the first bayonet, so that the locking member 22 can rapidly enter the second bayonet 11312 for guiding.

In an alternative embodiment, the mounting portion 113 has a first side wall (not shown) and a second side wall (not shown), wherein the first side wall and the second side wall form the U-shaped groove structure, in this embodiment, the bayonet 1131 is disposed on the first side wall, the second side wall is provided with a through hole structure 1132, and an axis of the through hole structure 1132 is aligned with an axis of the first bayonet 11311 (see fig. 2).

Specifically, install two elastic component 23 in the both sides of first locking end 211 respectively earlier, then pass one of them of two elastic component 23, another of first locking end 211 and two elastic component 23 with retaining member 22 in proper order, remove first locking end 211 to installation part 113 again for draw-in groove 221 aligns with second bayonet 11312, so that retaining member 22 can move to first bayonet 11311 along second bayonet 11312 through draw-in groove 221, then press fit retaining member 22 makes the other end of retaining member 22 fix in through-hole structure 1132.

Wherein, retaining member 22 can be the round pin axle, installs behind U type groove structure as first locking end 211 together with retaining member 22 and elastic component 23, can make retaining member 22 remove and get into through-hole structure 1132 completely along the axis direction of first bayonet 11311 through promoting retaining member 22 for retaining member 22 joint is in through-hole structure 1132, thereby accomplishes the fixed of first locking end 211. Of course, the locking member 22 may also be a screw, and the screw may then adopt a lateral wrench to perform a lateral rotation locking mode, and in addition, the elastic member 23 may be an elastic pad, and the through hole structure 1132 on the second side wall may also be replaced by the bayonet 1131 on the first side wall, which is not limited in this application.

After the technical scheme is adopted, the occupied space during installation of the locking member 22 can be reduced, the increase of the whole space of the lifting structure 100 is avoided, the installation and the disassembly of the locking member 22 are facilitated, the subsequent maintenance of the lifting structure 100 is facilitated, and the design requirement of miniaturization of the medical cart is also facilitated. In addition, because the second side wall is equipped with through-hole structure 1132, combines bayonet 1131 on the first side wall, can ensure the bearing capacity of installation department 113, thereby avoid promptly leading to first locking end 211 to break away from because of the air spring atress is too big and come out, simple structure is but practical.

In an alternative embodiment, the second upright 12 is provided with a fixing portion 122 (as shown in fig. 6) for installing the second locking end 212 at an end away from the installation portion 113, wherein the structure of the fixing portion 122 is the same as that of the installation portion 113, so that the installation space required for installing the second locking end 212 on the second upright 12 can be reduced, the overall structure of the lifting structure 100 is more compact, the design requirement for miniaturization of the medical cart is facilitated, and meanwhile, the installation and the disassembly of the second locking end 212 are facilitated, which is beneficial to the subsequent maintenance of the lifting structure 100.

In an alternative embodiment, the first upright post 11 and the second upright post 12 are both formed by rolling or welding plates, wherein the cross section of the first upright post 11 is C-shaped, the cross section of the second upright post 12 is chevron-shaped, and the second upright post 12 is nested in the first upright post 11.

Specifically, the first upright post 11 and the second upright post 12 can be made by bending plates after cutting, so that the production efficiency is extremely high, and the cost is correspondingly low, thereby greatly improving the production efficiency of the whole upright post 10 and reducing the production cost. In addition, because the upright post 10 is formed by nesting the second upright post 12 in the first upright post 11, in the process of assembling the upright post 10, a worker can firstly install the guide assembly 13 on the movable cavity 112 and then nest the second upright post 12 in the first upright post 11, so that the assembly efficiency is greatly improved.

In an alternative embodiment, the first pillar 11 includes a first pillar bottom 115 and two first edges 116 extending vertically upward from the first pillar bottom 115, wherein the two first edges 116 are respectively disposed on two sides of the first pillar bottom 115 to form the movable cavity 112. In the present embodiment, the two first edges 116 are provided with the second edge 117 facing the inner side of the first upright 11 at the middle part of the end far away from the bottom 115 of the first upright, which not only enables the second upright 12 to be nested in the first upright 11, but also improves the bearing capacity of the first upright 11 in the length direction.

Specifically, the plate is cut and then placed into a bending machine, and the second edge 117 and the first edge 116 are sequentially folded in the bending machine, so as to form the first upright post 11, wherein the distance between the two first edges 116 after being bent is adapted to the width of the second upright post 12, and the distance between the second edge 117 and the bottom 115 of the first upright post is adapted to the thickness of the second upright post 12, so that the design is simple and the structure is compact.

In addition, the length of the second edge 117 relative to the first edge 116 may be designed according to the load-bearing capacity of the first upright 11 in the length direction, and the number of the second edge 117 may be one, or may be provided on the first edge 116 at intervals, which is not limited in the present application.

In an alternative embodiment, the second pillar 12 includes a second pillar bottom 123, a boss 125 and two first outer edges 124 extending vertically upward from the second pillar bottom 123, wherein the two first outer edges 124 are disposed on two sides of the second pillar bottom 123, and the boss 125 is formed by welding a plurality of plates and disposed between the two first outer edges 124, which not only improves the bearing capacity of the second pillar 12 in the length direction, but also makes the structure of the pillar 10 more compact.

Specifically, the second pillar 12 is formed by bending a plate material, wherein the boss 125 is partially welded by at least two layers of protrusions 1251 with the same shape, so as to increase the thickness of the boss 125 and the shape of the second pillar 12 itself to improve the load-bearing capacity of the second pillar 12 in the length direction. In addition, since the boss 125 is disposed between the two first outer edges 124, a receiving cavity 126 is formed between the boss 125 and the first outer edge 124, so that the gas spring 21 can be disposed in the receiving cavity 126, and the structure of the whole upright 10 is more compact.

Referring to fig. 5 to fig. 11, in an alternative embodiment, the guiding assembly 13 includes a guiding slide rail 131 and a guiding slide 132, wherein the guiding slide 132 is configured to cooperate with the guiding slide rail 131. In the present embodiment, the guide slide rail 131 is mounted on the first vertical column 11, the number of the guide sliders 132 is two, and the two guide sliders 132 are respectively fixed to the second vertical column 12, so that the second vertical column 12 can be slidably mounted on the first vertical column 11 by the cooperation of the guide sliders 132 and the guide slide rail 131.

In an alternative embodiment, the guide rail 131 and the guide slider 132 are provided with a first locking portion (not shown) and a second locking portion (not shown) when the second upright 12 is in the longest state or the shortest state with respect to the first upright 11, so as to ensure the stability of the upright 10 in the longest state or the shortest state.

In an alternative embodiment, the middle of the first upright 11 is provided with a guide rail mounting portion 114, the middle of the second upright 12 is provided with a recessed portion (not shown), the position of the recessed portion corresponds to the position of the guide rail mounting portion 114, and the depth of the recessed portion matches the height of the guide slider 132.

Specifically, the recessed portion is formed by the protrusion 1251, when the second upright post 12 is nested on the first upright post 11, since the height of the guide slider 132 is adapted to the depth of the recessed portion, the distance between two opposite end surfaces of the second upright post and the first upright post 11 can be ensured, so that the bearing capacity of the lifting structure 100 can be indirectly improved, and meanwhile, the structure of the lifting structure 100 is more compact, which is favorable for the design requirement of miniaturization of the lifting structure 100.

In an alternative embodiment, the lower end of the first upright 11 is provided with a base mounting portion 111 and the upper end of the second upright 12 is provided with a table mounting portion 121, wherein the gas spring 21 is disposed between the base mounting portion 111 and the table mounting portion 121. Specifically, the distance between the mounting portion 113 and the base mounting portion 111 is far greater than the distance between the mounting portion 113 and one end far away from the base mounting portion 111, and the distance between the fixing portion 122 and the table-board mounting portion 121 is far greater than the distance between the fixing portion 122 and one end far away from the table-board mounting portion 121, so as to improve the bearing capacity of the lifting structure 100.

In an alternative embodiment, the gas spring 21 is a lockable gas spring, wherein the lockable gas spring is freely retractable and can lock itself in any stroke position. Specifically, the second locking end 212 of the gas spring 21 is provided with a release valve 213, by which release valve 213 the gas spring 21 can be made to extend or contract with a small force.

The application designs and provides a gas spring assembly for a lifting structure 100 of a medical trolley, wherein the lifting structure 100 comprises a second upright 12 and a first upright 11 movably arranged in the second upright 12, the gas spring assembly 20 comprises a locking member 22, an elastic member 23 and a gas spring 21 with a first locking end 211 and a second locking end 212, the elastic member 23 is arranged behind the first locking end 211 or the second locking end 212 through the locking member 22, the first locking end 211 and the elastic member 23 are connected with one of the second upright 12 or the first upright 11 through the locking member 22, and/or the second locking end 212 and the elastic member 23 are connected with the other of the second upright 12 or the first upright 11 through the locking member 22.

Referring to fig. 12 and 13, the present application provides a medical cart, which includes a table 200 for placing a main body 400, a base 300, and the lifting structure 100, wherein the base 300 is provided with rollers 301, and the main body 400 can be an ultrasonic diagnostic apparatus. In this embodiment, the first upright 11 of the lifting structure 100 is installed on an end surface of the base 300 away from the roller 301, and the second upright 12 of the lifting structure 100 is connected with the table top 200 for adjusting the height between the table top 200 and the base 300, so that not only the bearing capacity of the medical cart can be ensured, but also the requirement of the medical cart for miniaturization design can be met.

After the technical scheme is adopted, as shown in fig. 1 to 13, the lifting structure 100 has a compact structure, so that the design requirements of compact structure and miniaturization of the medical cart are met, and in addition, the relative height between the table board 200 and the base 300 can be adjusted through the gas spring 21, so that the medical cart can adapt to users with different heights.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (12)

1. A lifting structure for a medical cart, comprising:

the stand column comprises a first stand column, a guide component and a second stand column, and the second stand column is movably arranged on the first stand column through the guide component;

a gas spring assembly comprising a gas spring having a first locking end and a second locking end, said gas spring being connected to said first post by said first locking end, said gas spring being connected to said second post by said second locking end;

wherein, the air spring subassembly still includes retaining member and elastic component, first stand is lieing in the one end of second stand extension direction is equipped with the installation department that is U type groove structure, set up the bayonet socket that is C shape on the lateral wall of installation department, work as the retaining member will the elastic component is installed behind the first locking end, first locking end can pass through the retaining member with the cooperation of bayonet socket is fixed on the installation department.

2. The lifting structure according to claim 1, wherein the locking member is provided with a locking groove, and the locking groove comprises:

the first bayonet is circular, and the diameter of the first bayonet is matched with that of the locking piece;

the second bayonet socket is connected on first bayonet socket, and the width is less than the diameter of first bayonet socket and with the diameter looks adaptation of draw-in groove, so that the retaining member can pass through the draw-in groove passes get into behind the second bayonet socket behind the first bayonet socket, first locking end passes through the retaining member is fixed in the first bayonet socket.

3. The lifting structure according to claim 2, wherein the second bayonet is provided with a chamfer structure at both ends of one side far away from the first bayonet.

4. The lift structure of claim 2, wherein the mounting portion has a first sidewall and a second sidewall, the first and second sidewalls forming the U-shaped slot structure, the bayonet being disposed on the first sidewall, the second sidewall being provided with a through-hole structure, an axis of the through-hole structure being aligned with an axis of the first bayonet.

5. The lifting structure as claimed in claim 4, wherein the locking member is configured such that after the first locking end is mounted in the U-shaped groove structure, the locking member can move along an axial direction of the first bayonet and be engaged with the through-hole structure.

6. The lifting structure according to any one of claims 1 to 5, wherein the second column is provided with a fixing portion at an end remote from the mounting portion, the fixing portion having the same structure as the mounting portion, for mounting the second locking end.

7. The lifting structure as claimed in claim 1, wherein the first and second columns are each formed by rolling or welding a plate, the first column has a C-shaped cross section, the second column has a chevron-shaped cross section, and the second column is nested in the first column.

8. The lift structure of claim 7, wherein the first post includes a first post bottom and two first edges extending vertically upward from the first post bottom, the two first edges being disposed on opposite sides of the first post bottom, and the two first edges having a second edge facing inward of the first post in a middle portion of an end thereof remote from the first post bottom.

9. The lift structure of claim 7, wherein the second column includes a second column bottom, a boss, and two first flanges extending vertically upward from the second column bottom, the two first flanges being disposed on opposite sides of the second column bottom, the boss being welded from a plurality of plates and disposed between the two first flanges.

10. The lift structure of claim 1, wherein the lower end of the first mast is provided with a base mount and the upper end of the second mast is provided with a table mount, the gas spring being disposed between the base mount and the table mount.

11. The utility model provides a gas spring assembly for the elevation structure of medical shallow, elevation structure includes second stand and movably installs the first stand in the second stand, its characterized in that includes:

a locking piece is arranged on the upper surface of the shell,

the elastic piece is arranged on the base plate,

the air spring has first locking end and second locking end, the elastic component passes through the retaining member is installed behind first locking end or second locking end, first locking end and elastic component pass through the retaining member with one of them of second stand or first stand is connected, and/or second locking end and elastic component pass through the retaining member with another of second stand or first stand is connected.

12. A medical cart, comprising:

the base is provided with rollers;

the table top is used for placing a host; and

the lifting structure as claimed in any one of claims 1-10, wherein a first column of the lifting structure is mounted on an end surface of the base facing away from the roller, and a second column of the lifting structure is connected to the table top for adjusting the height between the table top and the base.

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