Aluminum alloy extrusion profile for elevator

Abstract

The utility model relates to the technical field of elevator guide rails, in particular to an aluminum alloy extruded section bar for an elevator, which comprises a T-shaped outer guide rail sleeve sleeved on a T-shaped elevator foundation guide rail body, and the T-shaped outer guide rail sleeve comprises a longitudinal sleeving part and a transverse sleeving part which are integrally connected front and back. The longitudinal sleeving part comprises a left longitudinal guide rail main plate, a right longitudinal guide rail main plate and a front connecting transverse plate; the left longitudinal guide rail main plate and the right longitudinal guide rail main plate are arranged left and right at an interval; the front connecting transverse plate is integrally connected between the front end of the left longitudinal guide rail main plate and the front end of the right longitudinal guide rail main plate; a front splicing positioning groove which extends up and down and is used for positioning when a plurality of aluminum alloy extruded profiles for the elevator are spliced up and down is formed in the front side plate surface of the front connecting transverse plate; and the T-shaped outer guide rail sleeve is an aluminum alloy sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator guide rails, in particular to an aluminum alloy extruded profile for elevators. Background Art

[0002] Existing elevator guide rails are also beginning to adopt aluminum profiles. Of course, they are generally used in conjunction with the underlying steel rails. This is mainly due to the improvement in heat dissipation and cost control. Because the heat dissipation capacity is better, the structural stability is relatively higher, and the maintenance cost can be reduced accordingly. Of course, there are certainly applications for this type of guide rail in the existing technology.

[0003] For example, the Chinese patent application number 201921135571.0 discloses an aluminum profile elevator guide rail, which includes a guide rail body, a connecting base plate is provided at the bottom of the guide rail body, a T-shaped reinforcing base plate is embedded in the interior of the guide rail body, and a fixing block is provided at the bottom of the T-shaped reinforcing base plate. The guide rail body is an aluminum profile, which is used by being mounted on the T-shaped reinforcing base plate. The T-shaped reinforcing base plate is also a traditional guide rail structure such as a steel rail, which has a good improvement in heat dissipation and cost control.

[0004] However, the existing guide rail structure has some defects in positioning and compactness, which makes it easy to cause shaking and considerable noise. Utility Model Content

[0005] The utility model aims to provide an aluminum alloy extruded profile for elevators with better positioning effect.

[0006] The above-mentioned purpose of the present utility model is achieved through the following technical solutions: an aluminum alloy extruded profile for an elevator, comprising a T-shaped outer guide rail sleeve for sleeved on a T-shaped elevator basic guide rail body, the T-shaped outer guide rail sleeve comprising a longitudinal sleeve portion and a transverse sleeve portion integrally connected front and rear, the longitudinal sleeve portion comprising a left longitudinal guide rail main plate and a right longitudinal guide rail main plate spaced apart on the left and right sides, and a front connecting transverse plate integrally connected between the front ends of the left longitudinal guide rail main plate and the right longitudinal guide rail main plate, the transverse sleeve portion comprising a rear connecting transverse plate, a left longitudinal auxiliary plate integrally connected to the left side edge of the rear connecting transverse plate, a right longitudinal auxiliary plate integrally connected to the right side edge of the rear connecting transverse plate, and a front side edge of the left longitudinal auxiliary plate The left transverse auxiliary plate is integrally connected to the left longitudinal auxiliary plate, and the right transverse auxiliary plate is integrally connected to the front side edge of the right longitudinal auxiliary plate. The rear side edge of the left longitudinal guide rail main plate is integrally connected to the right side edge of the left transverse auxiliary plate, and the rear side edge of the right longitudinal guide rail main plate is integrally connected to the left side edge of the right transverse auxiliary plate. A left guide rail slot extending up and down is formed on the left side plate surface of the left longitudinal guide rail main plate, and a right guide rail slot extending up and down and matching the left guide rail slot is formed on the right side plate surface of the right longitudinal guide rail main plate. A front splicing positioning groove extending up and down is formed on the front side plate surface of the front connecting transverse plate and used for positioning when multiple aluminum alloy extruded profiles for the elevator are spliced ​​up and down, and the T-shaped outer guide rail sleeve is an aluminum alloy sleeve.

[0007] As a preferred embodiment of the present invention, a left splicing positioning groove is formed on the left side plate surface of the left longitudinal auxiliary plate, which extends up and down and is used for positioning when multiple aluminum alloy extruded profiles for elevators are spliced ​​up and down.

[0008] As a preferred embodiment of the present invention, a right splicing positioning groove is formed on the right side plate surface of the right longitudinal auxiliary plate, which extends up and down and is used for positioning when multiple aluminum alloy extruded profiles for elevators are spliced ​​up and down.

[0009] As a preferred embodiment of the present invention, the left guide rail slot is in the shape of an arc concave to the right, the right guide rail slot is in the shape of an arc concave to the left, and the front splicing positioning groove, the left splicing positioning groove and the right splicing positioning groove are all rectangular grooves or dovetail grooves.

[0010] As a preferred embodiment of the present invention, the left longitudinal guide rail main board is provided with a left expansion positioning hole that passes through the main board up and down and is located between the left guide rail slot and the right guide rail slot, and the right longitudinal guide rail main board is provided with a right expansion positioning hole that passes through the main board up and down and is located between the left guide rail slot and the right guide rail slot.

[0011] As a preferred embodiment of the present invention, the left expansion positioning hole and the right expansion positioning hole are both rectangular and are equipped with an expansion rod for expansion. The expansion rod is composed of a first trapezoidal prism part and a second trapezoidal prism part that can be spliced ​​into a complete rectangular column. The inclined surface of the first trapezoidal prism part and the inclined surface of the second trapezoidal prism part serve as upper and lower sliding guide surfaces and fit each other.

[0012] As a preferred embodiment of the present invention, the right side surface of the left longitudinal guide rail main board is formed with a plurality of left heat dissipation grooves arranged at intervals front to back and located in front of the left guide rail slide groove, and the left side surface of the right longitudinal guide rail main board is formed with a plurality of right heat dissipation grooves arranged at intervals front to back and located in front of the right guide rail slide groove.

[0013] As a preferred embodiment of the present invention, the left heat dissipation slot and the right heat dissipation slot are both rectangular.

[0014] As a preferred embodiment of the present invention, the left longitudinal guide rail main board is provided with a plurality of left heat dissipation holes that are spaced apart front to back and extend up and down, and the right longitudinal guide rail main board is provided with a plurality of right heat dissipation holes that are spaced apart front to back and extend up and down.

[0015] As a preferred embodiment of the present invention, both the left transverse auxiliary plate and the right transverse auxiliary plate are formed with fixing holes for vertically splicing and fixing a plurality of the elevator aluminum alloy extruded profiles.

[0016] The beneficial effects of the present invention are as follows: through the design of the front splicing positioning groove, the aluminum alloy extruded profile for the elevator of the present invention is secondary positioned when the upper and lower parts are spliced ​​together, the overall compactness is improved, and the stability of the structure after installation can be improved;

[0017] The design of the expansion hole structure improves the fit between structures and reduces shaking and noise;

[0018] Through the design of the heat dissipation structure, the heat dissipation is further optimized and the basic guide rails are effectively protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 1 is a schematic diagram of the three-dimensional structure of the aluminum alloy extruded profile for elevators in the embodiment from the front side perspective;

[0020] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure from an upper side perspective;

[0021] Figure 3 yes Figure 1 Top view after the heat dissipation structure is replaced;

[0022] Figure 4 yes Figure 1 Schematic diagram of the three-dimensional structure of the middle structure during installation and use;

[0023] Figure 5 yes Figure 4 Schematic diagram of the three-dimensional structure of the expansion rod. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0026] Examples, such as Figure 1-5As shown, the aluminum alloy extruded profile for elevators includes a T-shaped outer guide rail sleeve for being sleeved on the T-shaped elevator basic guide rail body 10. The T-shaped outer guide rail sleeve is an aluminum alloy sleeve, that is, the aluminum alloy extruded profile for elevators in this application can be understood as an outer protective sleeve for the guide rail, and the inner T-shaped elevator basic guide rail body 10 can actually adopt the original traditional steel rail, etc. The design of this overall structure is also reflected in the prior art, and the particularity of this application lies in the improvement of this sleeve structure. Similarly, the T-shaped outer guide rail sleeve includes a longitudinal sleeve portion and a transverse sleeve portion that are integrally connected front and back. Since the T-shaped elevator basic guide rail body is composed of two parts, longitudinal and transverse, correspondingly, the T-shaped outer guide rail sleeve is also composed of two parts. Specifically, the longitudinal sleeve portion includes a left longitudinal guide rail main plate 11 and a right longitudinal guide rail main plate 12 spaced apart on the left and right, and a front connecting transverse plate 13 integrally connected between the front ends of the left longitudinal guide rail main plate 11 and the front ends of the right longitudinal guide rail main plate 12. The front connecting transverse plate 13 is upright and has a plate surface in the front and back directions. The transverse sleeve portion includes a rear connecting transverse plate 21, a left longitudinal auxiliary plate 22 integrally connected to the left side edge of the rear connecting transverse plate 21, a right longitudinal auxiliary plate 23 integrally connected to the right side edge of the rear connecting transverse plate 21, a left transverse auxiliary plate 24 integrally connected to the front side edge of the left longitudinal auxiliary plate 22, and a right transverse auxiliary plate 25 integrally connected to the front side edge of the right longitudinal auxiliary plate 23. The left longitudinal auxiliary plate 22 and the right longitudinal auxiliary plate 23 are located on the front side of the rear connecting transverse plate 21, and the plate surface of the rear connecting transverse plate 21 is also facing the front and rear direction, and the left transverse auxiliary plate 24 is on the left longitudinal auxiliary plate. On the right side of the auxiliary plate 22, the right transverse auxiliary plate 25 is on the left side of the right longitudinal auxiliary plate 23. There is a gap between the left longitudinal auxiliary plate 22 and the right transverse auxiliary plate 25. This gap is used to connect the longitudinal sleeve portion, that is, the rear side edge of the left longitudinal guide main plate 11 is integrally connected to the right side edge of the left transverse auxiliary plate 24, and the rear side edge of the right longitudinal guide main plate 12 is integrally connected to the left side edge of the right transverse auxiliary plate 25. Through this structural design, the longitudinal sleeve portion and the transverse sleeve portion are integrally connected and surround each other to form a T-shaped inner hole, which is through-hole. Of course, the left side surface of the left longitudinal guide main plate 11 forms a left guide groove 111 extending vertically, and the right side surface of the right longitudinal guide main plate 12 forms a right guide groove 121 extending vertically and matching the left guide groove 111. The left guide groove 111 and the right guide groove 121 are arranged opposite each other on the left and right sides to guide the elevator's sliding shoe to move up and down.However, the biggest feature of this application is as follows: the front side panel surface of the front connecting cross plate 13 forms a front splicing positioning groove 131 that extends up and down and is used for positioning when multiple aluminum alloy extruded profiles for elevators are spliced ​​up and down. Similarly, the T-type elevator basic guide rail body in this application adopts a complete guide rail, and the T-type outer guide rail sleeve is used by combining multiple pieces up and down, and multiple T-type outer guide rail sleeves are assembled up and down to form a complete guide rail sleeve. When the existing guide rail body similar to the guide rail sleeve is sleeved on the T-type reinforcing base plate and stacked up and down, in order to facilitate the sleeve, and in accordance with the design requirements of conventional plug holes and connectors, the size of the T-shaped inner hole of the T-type outer guide rail sleeve is slightly larger than the outer contour size of the T-type elevator basic guide rail body, so there will always be a certain gap. Initially, the T-type outer guide rail sleeve can be sleeved on the T-type elevator basic guide rail body from top to bottom more smoothly. Of course, it is also necessary to configure a sleeve that can penetrate into each piece. The connecting rod c and the like in the front splicing positioning groove 131 on the T-shaped outer guide rail sleeve are used in series to connect the structures. The shape of the connecting rod c matches the shape of the front splicing positioning groove 131, so that secondary positioning is achieved. Since the T-shaped elevator basic guide rail body 10 is relatively complex in appearance, the average gap between the T-shaped elevator basic guide rail body and the T-shaped inner hole of the T-shaped outer guide rail sleeve needs to be larger, and the front splicing positioning groove 131 can be set to a simple groove type. In this way, the average gap between the front splicing positioning groove 131 and the connecting rod c can be set to be smaller.

[0027] Furthermore, a left splicing positioning groove 221 is formed on the left side panel of the left longitudinal auxiliary plate 22, which extends up and down and is used for positioning when multiple aluminum alloy extruded profiles for elevators are spliced ​​up and down; a right splicing positioning groove 231 is formed on the right side panel of the right longitudinal auxiliary plate 23, which extends up and down and is used for positioning when multiple aluminum alloy extruded profiles for elevators are spliced ​​up and down. The principles of the left splicing positioning groove 221 and the right splicing positioning groove 231 are consistent with those of the front splicing positioning groove 131. In order to achieve better secondary positioning, corresponding serial rods need to be configured to form a triangular positioning system, so that positioning can be more accurate.

[0028] Preferably, the left guide rail slot 111 is in the shape of an arc that is concave to the right, and the right guide rail slot 121 is in the shape of an arc that is concave to the left, which is also a conventional shape. The front splicing positioning groove 131, the left splicing positioning groove 221, and the right splicing positioning groove 231 can all be rectangular grooves or dovetail grooves. Here, we recommend dovetail grooves. The connecting rod c is a dovetail-shaped rod, that is, the cross-section of the connecting rod c is dovetail-shaped, and the middle main body of the connecting rod c is a dovetail-shaped prism. However, the dovetail cross-section of the connecting rod c gradually decreases towards the end, that is, it is a tapered dovetail column. This is to facilitate the insertion of the ends into the aforementioned splicing positioning grooves. However, the main body should be as completely aligned with the splicing positioning groove as possible, that is, the gap should be as small as possible. Specifically, after each T-shaped outer guide rail is inserted into the T-shaped elevator basic guide rail body 10, secondary positioning is completed by inserting each connecting rod c from top to bottom into the corresponding splicing positioning groove. Furthermore, in order to prevent the connecting rod c from moving up and down, the connecting rod c can be fixed and limited. The upper end of the connecting rod c needs to exceed the upper surface of the uppermost T-shaped outer guide rail sleeve. The upper end of the connecting rod c and the upper surface of the uppermost T-shaped outer guide rail sleeve are detachably connected and fixed by a pin structure, or other existing limiting structures are used for connection and limiting to ensure the stability of the limit, ensure the consistency of each T-shaped outer guide rail sleeve in the vertical direction, reduce the position deviation in the horizontal direction, make the elevator move up and down more smoothly, and also protect the guide rail itself and reduce damage. In addition, this structure is also very suitable for turnover transportation. By splicing the positioning groove and the connecting rod c, multiple T-shaped outer guide rail sleeves are connected in series to ensure the safety and reliability of transportation and convenient placement. Moreover, when installing the guide rail, if there is a relatively high lifting or lifting device and a relatively high upper space, the entire connected T-shaped outer guide rail sleeve can be connected to the T-shaped elevator basic guide rail body 10 in one step. Of course, if conditions do not permit, it is better to place them one by one as mentioned above.

[0029] Preferably, the left longitudinal guide rail main plate 11 is provided with a left expansion positioning hole 112 which passes through the main plate 111 and is located between the left guide rail slot 111 and the right guide rail slot 121, and the right longitudinal guide rail main plate 12 is provided with a right expansion positioning hole 122 which passes through the main plate 12 and is located between the left guide rail slot 111 and the right guide rail slot 121. The left guide rail slot 111, the left expansion positioning hole 112, the right expansion positioning hole 122 and the right guide rail slot 121 are kept in the same front and rear positions as much as possible. The left expansion positioning hole 112 and the right expansion positioning hole 122 are used to further make the T-shaped outer guide rail sleeve and the T-shaped elevator basic guide rail body 10 fit more tightly. At the same time, the elevator slide shoe and the guide rail slot can maintain a good fit. With the expansion positioning hole, a corresponding expansion insert is also required, specifically: the left expansion positioning hole 112 and the right expansion positioning hole 122 are both rectangular and are equipped with an expansion rod for expansion, the expansion rod is composed of a first trapezoidal prism part 31 and a second trapezoidal prism part 32 that can be spliced ​​into a complete rectangular column, the inclined surface of the first trapezoidal prism part 31 and the inclined surface of the second trapezoidal prism part 32 serve as the upper and lower sliding guide surfaces and fit each other, and after the T-shaped outer guide rail sleeve is installed on the T-shaped elevator basic guide rail body 10 and positioned, ... Insert the expansion rods into the right expansion hole 112 and the right expansion positioning hole 122 respectively, first put in the first trapezoidal prism part 31, and then put in the second trapezoidal prism part 32. The first trapezoidal prism part 31 and the second trapezoidal prism part 32 can be understood as two parts cut out of a complete long rectangular column. This cutting surface is cut obliquely from one top surface to the other bottom surface. The cutting position is to divide the top surface into a large and a small rectangle, not in the middle position, and then cut obliquely to the bottom surface, just dividing the oblique surface into a small and a large one. It can be seen that the first The trapezoidal prism portion 31 and the second trapezoidal prism portion 32 are two centrally symmetrical cylinders, and the horizontal dimension of the first trapezoidal prism portion 31 and the second trapezoidal prism portion 32 when forming a complete rectangular body is larger than the aperture of the left expansion positioning hole 112, and also larger than the aperture of the right expansion positioning hole 122, so as to form an expansion effect. Because during the upper and lower staggered sliding process of the two, due to the existence of the inclined surface, as long as there is a height difference between the upper and lower parts, the structure composed of the two will become longer in the upper and lower dimensions, and the horizontal dimension can be smaller than the left expansion positioning hole 112. The aperture of the positioning hole 112 is determined by the diameter of the positioning hole 112. Therefore, when using it, for example, the first trapezoidal prism part 31 is small at the top and large at the bottom and is first placed in the left expansion positioning hole 112, and then the second trapezoidal prism part 32 is placed in the left expansion positioning hole 112. At the beginning, the second trapezoidal prism part 32 is higher than the first trapezoidal prism part 31. As the second trapezoidal prism part 32 moves down along the inclined surfaces of the two, the left expansion positioning hole 112 is gradually stretched open, which can achieve the expansion effect and ensure the fit between the inner and outer sides of the T-shaped outer guide sleeve. The right expansion positioning hole 122 is used in the same way.This structure not only improves structural saturation during initial use, but also, over time, the T-shaped outer guide rail sleeve's slot will wear, widening the gap between it and the elevator shoe. In this case, the second trapezoidal prism portion 32 can be moved downward to achieve further expansion. Of course, in this case, the dimensions of the complete structure of the first and second trapezoidal prism portions 31, 32 must be sufficiently large, that is, significantly larger than the diameter of the left expansion positioning hole 112, to allow for more expansion margin. Of course, the second trapezoidal prism portion 32 must be positioned at a certain point during vertical movement to ensure a stable expansion state. This structure can utilize existing lifting and holding structures, such as a hydraulic cylinder or screw-type lifting mechanism installed at the top of the elevator shaft. The lifting rod of this lifting mechanism abuts or is connected to the second trapezoidal prism portion 32, and the lifting rod moves up and down to achieve vertical movement and positioning of the second trapezoidal prism portion 32. Of course, an existing locking structure may also be used, such as using a pressure structure to press the second trapezoidal prism portion 32 downward to a certain position, and then locking the second trapezoidal prism portion 32 to the elevator guide rail through the locking structure.

[0030] Preferably, the right side surface of the left longitudinal guide rail main board 11 is formed with a plurality of left heat dissipation grooves 113 arranged at intervals front to back and located in front of the left guide rail slot 111, and the left side surface of the right longitudinal guide rail main board 12 is formed with a plurality of right heat dissipation grooves 123 arranged at intervals front to back and located in front of the right guide rail slot 121. The right side of the left longitudinal guide rail main board 11 and the left side of the right longitudinal guide rail main board 12 are located at the rear of the heat dissipation groove, and it is necessary to ensure that the surface is as full and flat as possible, and no heat dissipation groove is opened, because there is a guide rail slot structure on the outside at the rear and there will be a sliding shoe to abut and run, and try to ensure that the inner side of the inner T-shaped outer guide rail sleeve fits more closely with the outer surface of the T-shaped elevator basic guide rail body 10, and the slotted part can be placed at the front. Furthermore, the left heat dissipation slot 113 and the right heat dissipation slot 123 are both rectangular in shape. The rectangular structure allows the structure therein to fit well with the exterior of the T-type elevator basic guide rail body 10, as the surface of the rectangular structure is flat. Alternatively, another heat dissipation structure may be adopted, i.e., the left longitudinal guide rail main plate 11 is provided with a plurality of left heat dissipation holes 114 spaced apart from each other and extending vertically, and the right longitudinal guide rail main plate 12 is provided with a plurality of right heat dissipation holes 124 spaced apart from each other and extending vertically. This structure does not have grooves on the surface, but rather has holes opened inside the longitudinal guide rail main plate, rather than on the surface. In this way, the outer surface is relatively flat and full, ensuring the outer fit and making the structural parts fit more tightly. The heat dissipation holes may also be rectangular in shape and be provided at the front of the slide.

[0031] Furthermore, the left transverse auxiliary plate 24 and the right transverse auxiliary plate 25 are both formed with fixing holes g for splicing and fixing a plurality of the elevator aluminum alloy extruded profiles up and down. This is the same as the prior art. Such fixing holes g can be opened in the elevator aluminum alloy extruded profiles. This further strengthens the strength of the structural connection. For example, after positioning, a connecting plate is set between the upper and lower adjacent T-shaped outer guide rail sleeves. The upper and lower parts of this connecting plate are respectively matched with the fixing holes g on the upper and lower T-shaped outer guide rail sleeves, that is, corresponding holes are opened on the connecting plate, and the structural connecting plate is fixedly connected to the T-shaped outer guide rail sleeve by bolts and other structural connecting plates. Of course, the existing fixed connection structure can also be used.

[0032] In this way, through the above-mentioned entire structural design, the positioning ability, compact structure and strength advantages, as well as heat dissipation and other problems of this elevator aluminum alloy extruded profile have been greatly improved and solved when in use, making it very practical and effective.

[0033] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. Aluminum alloy extruded profile for elevator, characterized by: The invention relates to a T-shaped outer guide rail sleeve for sleeve-mounting on a T-shaped elevator basic guide rail body, wherein the T-shaped outer guide rail sleeve comprises a longitudinal sleeve portion and a transverse sleeve portion which are integrally connected front and rear, wherein the longitudinal sleeve portion comprises a left longitudinal guide rail main plate (11) and a right longitudinal guide rail main plate (12) which are spaced apart from each other on the left and right sides, and a front connecting transverse plate (13) which is integrally connected between the front ends of the left longitudinal guide rail main plate (11) and the front ends of the right longitudinal guide rail main plate (12), and wherein the transverse sleeve portion comprises a rear connecting transverse plate (21), a left longitudinal auxiliary plate (22) which is integrally connected to the left side edge of the rear connecting transverse plate (21), a right longitudinal auxiliary plate (23) which is integrally connected to the right side edge of the rear connecting transverse plate (21), a left transverse auxiliary plate (24) which is integrally connected to the front side edge of the left longitudinal auxiliary plate (22), and a right longitudinal auxiliary plate ( The front side edge of the left longitudinal guide rail main plate (11) is integrally connected to the right side edge of the left transverse auxiliary plate (24), the rear side edge of the right longitudinal guide rail main plate (12) is integrally connected to the left side edge of the right transverse auxiliary plate (25), the left longitudinal guide rail main plate (11) is formed with a left guide rail groove (111) extending up and down on the left side plate surface, the right longitudinal guide rail main plate (12) is formed with a right guide rail groove (121) extending up and down and matching the left guide rail groove (111) on the right side plate surface, the front connecting transverse plate (13) is formed with a front splicing positioning groove (131) extending up and down and used for positioning when multiple aluminum alloy extruded profiles for elevators are spliced ​​up and down, and the T-shaped outer guide rail sleeve is an aluminum alloy sleeve.

2. The aluminum alloy extruded profile for elevator according to claim 1, characterized in that: A left splicing positioning groove (221) is formed on the left side surface of the left longitudinal auxiliary plate (22), extending up and down and used for positioning when a plurality of aluminum alloy extruded profiles for elevators are spliced ​​up and down.

3. The aluminum alloy extruded profile for elevator according to claim 2, characterized in that: A right splicing positioning groove (231) is formed on the right side plate surface of the right longitudinal auxiliary plate (23), extending up and down and used for positioning when a plurality of aluminum alloy extruded profiles for elevators are spliced ​​up and down.

4. The aluminum alloy extruded profile for elevator according to claim 3, characterized in that: The left guide rail slot (111) is in the shape of an arc that is concave to the right, and the right guide rail slot (121) is in the shape of an arc that is concave to the left. The front splicing positioning slot (131), the left splicing positioning slot (221) and the right splicing positioning slot (231) are all rectangular slots or dovetail slots.

5. The aluminum alloy extruded profile for elevator according to claim 3, characterized in that: The left longitudinal guide rail main plate (11) is provided with a left expansion positioning hole (112) which passes through the left guide rail slot (111) and the right guide rail slot (121) vertically, and the right longitudinal guide rail main plate (12) is provided with a right expansion positioning hole (122) which passes through the left guide rail slot (111) and the right guide rail slot (121) vertically.

6. The aluminum alloy extruded profile for elevator according to 5, characterized in that: The left expansion positioning hole (112) and the right expansion positioning hole (122) are both rectangular and are equipped with an expansion rod for expansion. The expansion rod is composed of a first trapezoidal prism part (31) and a second trapezoidal prism part (32) that can be spliced ​​into a complete rectangular column. The inclined surface of the first trapezoidal prism part (31) and the inclined surface of the second trapezoidal prism part (32) serve as upper and lower sliding guide surfaces and fit together.

7. The aluminum alloy extruded profile for elevator according to claim 1, characterized in that: The right side surface of the left longitudinal guide rail main board (11) is formed with a plurality of left heat dissipation grooves (113) arranged at intervals in front of and behind, and located in front of the left guide rail slide groove (111); the left side surface of the right longitudinal guide rail main board (12) is formed with a plurality of right heat dissipation grooves (123) arranged at intervals in front of and behind, and located in front of the right guide rail slide groove (121).

8. The aluminum alloy extruded profile for elevator according to claim 7, characterized in that: The left heat dissipation slot (113) and the right heat dissipation slot (123) are both rectangular.

9. The aluminum alloy extruded profile for elevator according to claim 1, characterized in that: The left longitudinal guide rail main board (11) is provided with a plurality of left heat dissipation holes (114) spaced apart in front and back and extending up and down, and the right longitudinal guide rail main board (12) is provided with a plurality of right heat dissipation holes (124) spaced apart in front and back and extending up and down.

10. The aluminum alloy extruded profile for elevator according to claim 1, characterized in that: The left transverse auxiliary plate (24) and the right transverse auxiliary plate (25) are both formed with fixing holes for vertically splicing and fixing a plurality of the elevator aluminum alloy extruded profiles.

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