CN216996263U

CN216996263U - Transmission case, electric guide rail conveying system and electric opening and closing curtain

Info

Publication number: CN216996263U
Application number: CN202220285883.5U
Authority: CN
Inventors: 金帅; 金旗; 李玉滨; 赵碧章
Original assignee: Hangzhou Zafur Intelligent Technology Co ltd
Current assignee: Hangzhou Zafur Intelligent Technology Co ltd
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-07-19
Anticipated expiration: 2032-02-11

Abstract

The utility model provides a transmission case which comprises a case shell with an opening at one end, a support frame comprising an upper support arm and a lower support arm, a guide wheel and a detachable connecting assembly. During installation, the support frame enters the box shell from the open end of the box shell, at least one part on the support frame is positioned in a channel of the guide rail, the guide wheel is arranged between an upper support arm and a lower support arm on the support frame, the axial direction of the guide wheel is basically parallel to the height direction of the guide rail, a transmission piece in the guide rail is firstly wound on one part outside the guide wheel during installation, then the transmission piece, the guide wheel enters the box shell from the open end of the box shell along with the support frame, the detachable connecting assembly is arranged between one part adjacent to the open end on the box shell and one part adjacent to the open end of the box shell on the support frame, and the box shell, the support frame and one part of the guide rail between the box shell and the support frame are fixed together. And an associated motorized track transport system and motorized roller shades.

Description

Transmission case, electric guide rail conveying system and electric opening and closing curtain

Technical Field

The utility model belongs to the technical field of guide rail type conveying equipment, and particularly relates to a transmission case, an electric guide rail conveying system provided with the transmission case, and an electric opening and closing curtain.

Background

The guide rail type conveying equipment comprises a guide rail, a conveying piece (such as a conveying belt, a conveying chain and other flexible conveying parts), a driving motor and a transmission case arranged at two ends of the guide rail.

The wheel body for guiding the transmission member to change the conveying direction in the transmission case is fixedly arranged in the transmission case, and when the transmission member is installed, one end of the transmission member is close to the wheel body through one of the narrow channels arranged on the two sides in the transmission case, then bypasses the wheel body and penetrates out of the other narrow channel. During the shuttling of the transport element, it is easy to cause the transport element to deflect during its movement and thus to rub against the side walls of the narrow passage, which affects the passage of the transport element through the narrow passage.

Further improvements in the transmission housing are therefore desirable.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to propose a transmission case which makes it possible to increase the installation space of the transmission member when it is installed in the transmission case, without increasing the installation space in the transmission case itself, and thus to make it possible to install the transmission member in the transmission case relatively easily, as well as a related electric rail transport system and electric opening and closing curtain.

In view of the above, the present invention provides a transmission case for connecting with one end of an external guide rail having a passage therein, the transmission case comprising:

a case housing having an opening at one end for inserting one end of the guide rail;

the support frame, during the installation, follow this case shell of case shell open end entering, just at least one position on the support frame is in the passageway of guide rail includes:

an upper support arm; and

a lower support arm;

the guide wheel is arranged between the upper support arm and the lower support arm on the support frame, the axial direction of the guide wheel is basically parallel to the height direction of the guide rail, when the guide wheel is installed, a transmission piece in the guide rail is wound on one part of the outer side of the guide wheel, and then the transmission piece and the guide wheel enter the box shell along with the support frame from the open end of the box shell; and

the detachable connecting assembly is arranged between one part of the box shell adjacent to the opening end and one part of the supporting frame adjacent to the opening end of the box shell, and when the detachable connecting assembly is installed, the box shell, the supporting frame and one part of the guide rail between the box shell and the supporting frame are fixed together;

the transmission piece is of a ring-shaped structure and comprises a pair of linear sides and a pair of arc sides, the linear sides are correspondingly arranged and arranged along the longitudinal direction of the guide rail, the arc sides are correspondingly arranged, two ends of one arc side are connected to the same end of the pair of straight sides, and two ends of the other arc side are connected to the same other end of the pair of straight sides;

when the transmission piece is installed, at least the part of the radial peripheral side of the guide wheel, which is adjacent to a pair of linear sides on the transmission piece, is not blocked by the support frame with the outside.

Optionally, during installation, a part of the radial circumferential side of the guide wheel, which is matched with one arc-shaped side of the transmission member, is not blocked by the support frame from the outside.

Optionally, the largest cross section of the support frame provided with the guide wheel is smaller than the smallest cross section of the channel in the guide rail;

the supporting frame provided with the guide wheels can completely enter and exit a channel in the guide rail.

Optionally, the elastic telescopic assembly is arranged on the support frame and can extend into the part of the channel in the guide rail, and the elastic telescopic assembly comprises:

the telescopic channel is arranged on the support frame, and two ends of the telescopic channel are communicated with the outside;

the pair of telescopic heads are respectively and movably arranged at two ends in the telescopic channel; and

the two ends of the elastic piece are respectively connected with the pair of telescopic heads;

when the elastic telescopic assembly is positioned in the channel in the guide rail, the pair of telescopic heads is elastically clamped with the inner side of the guide rail, and the elastic piece is in an elastic deformation state;

when the elastic telescopic assembly moves out of the channel in the guide rail, the elastic piece is restored to the original shape, and at least one part of the pair of telescopic heads respectively extends out of the telescopic channel to prevent the support frame from moving towards the channel in the guide rail.

Optionally, the pair of pressing surfaces are symmetrically arranged, the opposite inner sides of the pair of pressing surfaces are respectively connected with the matching surfaces on the pair of telescopic heads, which are tightly matched with the inner sides of the guide rails, and the pressing surfaces are obliquely arranged downwards from the opposite inner sides to the opposite outer sides of the pressing surfaces.

Optionally, the guide opening is formed in one side of the box shell, and one end of the guide opening is communicated with the outside;

the limiting convex part is arranged on the supporting frame;

when one part of the support frame positioned outside the guide rail enters the box shell, the limiting convex part also enters the guide port until the limiting convex part abuts against the inner end of the guide port, and the detachable connecting assembly fixes the box shell, the support frame and one part of the guide rail positioned between the box shell and the support frame together.

Optionally, the guide wheel is arranged at one end of the support frame far away from the guide rail;

when the device is installed, one part of the supporting frame is inserted into the guide rail, and the guide wheel is arranged outside the guide rail.

Optionally, the crane installation cavity is arranged on the support frame and used for accommodating the external crane for hanging the object;

the crane inlet and outlet is formed in the box shell and corresponds to the crane mounting cavity in the supporting frame, and the crane inlet and outlet is slightly smaller than the maximum cross section of the crane;

the elastic telescopic component is arranged adjacent to the crane installation cavity and closer to the detachable connecting component, and when the elastic telescopic component is installed, the pair of telescopic heads on the elastic telescopic component is abutted against the guide rail so as to prevent the crane installation cavity from entering the guide rail;

when the crane is installed, one part of the crane props up the crane inlet and outlet so as to enter and exit the crane installation cavity.

Optionally, the detachable connection assembly includes:

a wrench;

the clamping rotating piece is connected with the wrench, and when the clamping rotating piece is used, the wrench is rotated to drive the clamping rotating piece to rotate;

the clamping plate is matched with the clamping rotating piece;

one end of the clamping connecting piece is hinged with the clamping rotating piece, and the other end of the clamping connecting piece is connected with the clamping plate piece;

when the box shell is installed, the clamping plate is located in the channel of the guide rail, the wrench and the clamping rotating piece are located outside the guide rail, and the wrench is rotated to control the distance between the clamping rotating piece and the clamping plate so as to lock or loosen the box shell, the support frame and one part of the guide rail located between the box shell and the support frame.

Based on the above object, the present invention further provides an electric curtain, comprising:

the guide rail is internally provided with a channel which is longitudinally penetrated and arranged, an opening communicated with the channel is formed in one longitudinal side, the length of the opening is the same as that of the channel, and the opening is positioned at a relatively high position during installation;

the main transmission box and the auxiliary transmission box are correspondingly arranged at the two ends of the guide rail, and the main transmission box and/or the auxiliary transmission box are/is the transmission boxes;

the transmission piece is arranged on the main transmission box, the guide rail and the auxiliary transmission box in a ring shape;

the driving motor is arranged on the main transmission box and used for driving the transmission piece to circularly move;

a cord fabric;

a crane moving on the guide rail for connecting the opposite upper sides of the curtain cloth; and

and the moving vehicle is arranged on the transmission piece, moves on the guide rail and is used for connecting the opposite upper sides of the curtain cloth.

Based on the above object, the present invention further provides an electric rail conveying system, comprising:

the guide rail is internally provided with a channel which is longitudinally arranged in a penetrating way, and an opening communicated with the channel is formed in one longitudinal side of the guide rail, the length of the opening is the same as that of the channel, and the opening is positioned at a relatively high position during installation;

the main transmission box and the auxiliary transmission box are correspondingly arranged at two ends of the guide rail;

the moving vehicle is arranged on the transmission piece, moves on the guide rail and is used for bearing external objects;

wherein, main gear case and/or auxiliary gear case are the transmission case of following, and this transmission case includes:

a housing having an opening at one end thereof for receiving one end of the guide rail;

an upper support arm; and

a lower support arm;

the guide wheel is arranged between the upper support arm and the lower support arm on the support frame, the axial direction of the guide wheel is basically parallel to the height direction of the guide rail, when the guide wheel is installed, a transmission piece in the guide rail is wound on one part of the outer side of the guide wheel, and then the transmission piece and the guide wheel enter the box shell along with the support frame from the opening end of the box shell;

the detachable connecting assembly is arranged between one part of the box shell adjacent to the opening end and one part of the supporting frame adjacent to the opening end of the box shell, and when the detachable connecting assembly is installed, the box shell, the supporting frame and one part of the guide rail between the box shell and the supporting frame are fixed together; and

the flexible subassembly of elasticity is located can stretch into on the support frame on the part of the passageway in the guide rail, include:

when the elastic telescopic assembly moves out of the channel in the guide rail, the elastic piece is restored to the original shape, and at least one part of the pair of telescopic heads respectively extends out of the telescopic channel and then prevents the support frame from moving towards the direction of the channel in the guide rail;

when the transmission piece is installed, at least the part of the radial peripheral side of the guide wheel, which is adjacent to a pair of linear sides on the transmission piece, and the outside are not blocked by the support frame.

In a conventional transmission case, because the wheel body connected with the transmission piece is fixedly arranged in the transmission case, when the transmission piece is installed, the installation space is limited, and the transmission piece is easy to collide with the inner wall of the transmission case in the installation process, so that the transmission piece is prevented from shuttling in the transmission case. According to the transmission case, before the transmission piece is installed, the supporting frame with the guide wheels is moved out of the case shell, and because the parts, adjacent to a pair of linear sides on the transmission piece, on the radial peripheral sides of the guide wheels and the outside are not blocked by the supporting frame (namely in an open state), the installation space outside the radial peripheral sides of the guide wheels is enlarged, and the transmission piece can be easily wound on the guide wheels. And related electric guide rail conveying systems and electric opening and closing curtains.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view showing a structure in which a transmission case is coupled to a guide rail according to an embodiment of the present invention.

Fig. 2 is a schematic view of an exploded structure of fig. 1.

Fig. 3 is a schematic view of an alternative explosive structure of fig. 1.

Fig. 4 is a schematic view of yet another exploded structure of fig. 1.

Fig. 5 is a schematic structural view of a transmission case according to an embodiment of the present invention.

FIG. 6 is a schematic illustration of a transmission case according to an embodiment of the present invention in the absence of the case.

FIG. 7 is a schematic illustration of the construction of the housing in the transmission according to one embodiment of the present invention.

FIG. 8 is a schematic illustration of the construction of the housing in the transmission according to one embodiment of the present invention.

FIG. 9 is a schematic structural view of a telescoping snap-in assembly in a transmission according to one embodiment of the present invention.

Fig. 10 is a schematic view of the construction of a transmission case according to another embodiment of the present invention.

Fig. 11 is a schematic view of the structure of fig. 10 from another view angle.

Fig. 12 is an exploded view of a transmission case according to another embodiment of the present invention.

Fig. 13 is an exploded view of fig. 12 from another perspective.

The figures are for illustrative purposes only and are not intended to be drawn to scale. In the drawings, like reference numerals are used to indicate like elements throughout. For purposes of clarity, not every component may be labeled in every drawing.

Detailed Description

The utility model will be described below with reference to several examples. It is to be understood that these embodiments are described in order to enable others skilled in the art to better understand and implement the present invention, and are not intended to represent or imply any limitation on the scope of the present invention.

As shown in the figure, the guide rail a is hollow, and a channel a1 is provided therein and runs through the guide rail a in the longitudinal direction, and an opening a2 is provided on one side of the guide rail a in the longitudinal direction. One of the main uses of the guide rail a is to mount a transmission member described below in the passage a1 thereon.

As shown in the figure, the conveying member b has a flexible feature, such as a conveying belt, or a conveying chain. A generally circular structure is formed by a pair of correspondingly arranged straight side b1 arranged along the longitudinal direction of the guide rail a and a pair of correspondingly arranged arc side b2, wherein two ends of one arc side b2 are connected with the same end of the pair of straight side b1, and two ends of the other arc side b2 are connected with the same other end of the pair of straight side b 1. One of the main uses of the loop is to allow the articles to move with the conveyor b by binding the corresponding articles thereto.

As shown in the figure, the crane c is used for carrying external objects, one part of the crane c is arranged in the channel a1 of the guide rail a, and the other part of the crane c extends out of the guide rail a through the opening a2 on the guide rail a so as to be connected with external objects (such as spot lights, curtains and the like) to be carried. The hoist c is movable forward and backward in the longitudinal direction on the guide rail a.

The main transmission case generally refers to a transmission case directly or indirectly connected with a driving motor.

The sub-transmission case generally refers to a transmission case that is not directly or indirectly connected to the driving motor.

Fig. 1 to 9 are schematic structural views of a transmission case according to an embodiment of the present invention, the transmission case including a case 110, a support frame 120, a guide wheel 130, and a detachable connection assembly.

And a housing 110 having an open end for receiving an end of the guide rail a.

The supporting frame 120 is movably disposed in the housing 110 and includes an upper supporting arm 121 and a lower supporting arm 122. When the support frame 120 with the guide wheels 130 installed is installed, the support frame 120 enters the housing 110 from the open end of the housing 110, and at least one part of the support frame 120 is located in the channel a1 of the guide rail a, namely, when the support frame is installed, at least one part of the support frame 120 is ensured to be in the channel of the guide rail a.

It should be noted that, during installation, at least one portion of the support bracket 120 is required to be located in the channel a1 of the rail a, so that the housing 110, the rail a and the support bracket 120 can be fixed together by using the detachable connection assembly described below.

And the guide wheel 130 is arranged between an upper support arm 121 and a lower support arm 122 on the support frame 120, and the axial direction of the guide wheel 130 is basically parallel to the height direction of the guide rail. This makes it possible to make a relatively large portion of the radially peripheral side of the guide wheel 130 (i.e., at least a portion of the radially peripheral side of the guide wheel 130 adjacent to the pair of linear sides b1 on the transmission member b) free from the obstruction from the outside by the support frame 120 (i.e., so that a relatively large portion of the radially peripheral side of the guide wheel 130 is open), so as to facilitate the winding of an arcuate side b2 on the transmission member b around a portion of the radially peripheral side of the guide wheel 130.

It should be noted that, because the supporting frame 120 is movably disposed in the housing 110, when installing, the transmission member b can be wound around the guide wheel 130 disposed on the supporting frame 120, and then the supporting frame 120 can be moved into the housing 110.

It should be noted that the guide wheel 130 may be fixedly disposed on the supporting frame 120, and then, the guide wheel is in sliding fit with the transmission member b. The guide wheel 130 may be rotatably disposed on the supporting frame 120, that is, the guide wheel 130 may rotate along with the rotation around the transmission member b disposed on the guide wheel 130, and the transmission box having the rotation function may be a main transmission box, and may be a sub transmission box, and in addition, when the rotating guide wheel 130 is matched with the transmission member b, the rotating guide wheel has a purpose of reducing the running resistance of the transmission member b.

It should be noted that the position of the guide wheel 130 on the support frame 120 may be on a side close to the guide rail a, or in the middle. The guide wheels 130 may be disposed on a side of the support frame 120 away from the guide rail a, and when the support frame is mounted, a portion of the support frame 120 is inserted into the guide rail a, and the guide wheels 130 are disposed outside the guide rail a, which not only facilitates the mounting of the transmission member b on the guide wheels 130, but also facilitates the maintenance of the transmission member b and/or the guide wheels 130 only by detaching the casing 110 (e.g., adjusting the tightness of the transmission member b, and replacing the guide wheels 130).

The detachable connecting assembly is arranged between one part of the case shell 110, which is adjacent to the opening end, and one part of the supporting frame 120, which is adjacent to the opening end of the case shell 110, and is fixed together with the case shell 110, the supporting frame 120 and one part of the guide rail a, which is positioned between the case shell 110 and the supporting frame 120, during installation.

As an example of the detachable connection assembly, as shown in fig. 1 to 2, it includes a wrench 151, a snap rotation member 152, a snap plate member 153, and a snap connection member 154. The engaging rotation member 152 is connected to the wrench 151, and when the wrench 151 is rotated to rotate the engaging rotation member 152. The engaging plate 153 is engaged with the engaging rotation member 152. And a clamping connection piece 154, one end of which is hinged to the clamping rotation piece 152, and the other end of which is connected to the clamping plate 153.

When the cabinet is installed, the engaging plate 153 is located in the channel a1 of the guide rail a, the wrench 151 and the engaging rotary member 152 are located outside the guide rail a, and the wrench 151 is rotated to control the distance between the engaging rotary member 152 and the engaging plate 153 so as to lock or unlock the cabinet 110, the supporting bracket 120, and a portion of the guide rail a located between the cabinet 110 and the supporting bracket 120.

It should be noted that the engaging and rotating member 152 is an eccentric structure, that is, the engaging and rotating member 152 may be an eccentric wheel, or a circular wheel with an eccentric hole, and the distance between the engaging and rotating member 152 and the engaging plate member 153 is shortened or increased by rotating the wrench 151.

It should be noted that, in order to increase the contact surface of the engaging and rotating member 152 with the housing 110, a plurality of engaging and rotating members 152 may be provided in parallel, and as shown in fig. 1 to 2, one engaging and rotating member 152 is provided on each of both lateral sides of one of the wrenches 151. As an example, in order to prevent the wrench 151 from shifting laterally when rotating, a pair of guide bases 155 are provided on the housing 110, one guide base 155 is engaged with one engaging rotation member 152, the guide base 155 is further provided with an arc-shaped guide groove 156 having an opening facing outward, the size and shape of the arc-shaped guide groove 156 are substantially the same as those of a portion of the engaging rotation member 152 engaged therewith, and the distance between the pair of guide bases 155 is substantially the same as the lateral length of the wrench 151.

As another example of the detachable connection assembly, as shown in fig. 10 to 13, it includes a connection screw 157, a connection plate 158, and a mounting hole provided with an internal thread and opened to the support frame 120. When the mounting is carried out, the connecting plate 158 with the hole is firstly placed on the case shell 110, the connecting screw 157 sequentially passes through the hole on the connecting plate 158 and the corresponding opening on the case shell 110 to enter the mounting hole with the internal thread of the supporting frame 120, and finally the connecting screw 157 is screwed. The connecting plate 158 is provided to increase the contact surface with the housing 110, so that the area of the connecting plate 158 tightly fitted to the housing 110 is increased and the connection is more secure when the connecting screws 157 are tightened. Of course, the connecting plate 158 may not be provided, and a hole for the connecting screw 157 to pass through may be directly formed on the housing 110.

As an example, the largest cross-section of the support frame 120 provided with the guide wheels 130 is smaller than the smallest cross-section of the channel in the guide rail a. The support frame 120 with the guide wheels 130 can be completely placed on the channel a1 in the guide rail a, so that the size of the space for placing the support frame 120 with or without the guide wheels 130 can be eliminated from consideration during packaging and transportation.

As an example, the present transmission case is further provided with an elastic expansion assembly 140. The elastic expansion assembly 140 is disposed on the portion of the supporting frame 120 that can extend into the channel a1 in the guide rail a. In this arrangement, when the elastic expansion/contraction member 140 is positioned in the passage in the guide rail a, the pair of expansion/contraction heads 142 elastically engage with the inner side of the guide rail a, and the elastic piece 143 is elastically deformed. When the elastic expansion/contraction member 140 is moved out of the channel in the guide rail a, the elastic member 143 is restored to its original shape, and at least a portion of the pair of expansion/contraction heads 142 respectively protrudes from the expansion/contraction channel 141, so as to prevent the support frame 120 from moving toward the channel in the guide rail a.

As a specific example of the elastic telescopic assembly, a telescopic passage 141, a pair of telescopic heads 142, and an elastic member 143 are included. The telescopic channel 141 is disposed on the support frame 120, and two ends of the telescopic channel 141 are communicated with the outside, where the number of the telescopic channel 141 may be one or two. And a pair of retractable heads 142 movably disposed in the retractable channel 141, wherein when one retractable channel 141 is provided, the pair of retractable heads 142 are respectively disposed at two ends of the retractable channel 141, and when two retractable channels 141 are provided, one retractable head 142 corresponds to one retractable channel 141. The elastic member 143 may be made of an elastic material, may be a member having an elastically deformable structure, or may be a combination of the two, and both ends thereof are connected to the pair of telescopic heads 142, respectively.

As shown in fig. 1 to 9, a pair of elastic retractable assemblies are respectively disposed at two lateral sides of the supporting frame 120, and a pair of retractable heads 142 are disposed opposite to each other along the height direction of the supporting frame 120. The arrangement is favorable for enhancing the clamping firmness of the elastic telescopic component and the guide rail a, and during operation, the left hand and the right hand respectively hold the elastic telescopic component.

As shown in fig. 10 to 13, the number of the elastic telescopic assemblies is one, and the elastic telescopic assemblies are arranged along the transverse direction of the supporting frame 120, and a pair of telescopic heads 142 on the elastic telescopic assemblies respectively extend out of two transverse sides of the supporting frame 120. In operation, only one hand is needed to hold the pair of retractable heads 142 at the same time.

For the convenience of holding the telescopic heads 142, as an example, one side of each telescopic head 142 adjacent to the guide rail a is divided into a fitting surface 145 and a pressing surface 144, and the fitting surface 145 and the pressing surface 144 of the pair of telescopic heads 142 are correspondingly arranged. The engaging surface 145 is a surface which comes into contact with the inside of the guide rail a when the guide rail a is fitted tightly, and the opposite inside of the pressing surface 144 is connected to the engaging surface 145 and is inclined downward from the opposite inside of the pressing surface 144 to the opposite outside. An ergonomic setup.

In order to ensure that the supporting frame 120 moves into the position inside the housing 110, as an example, a guiding opening 111 is further formed on one side of the housing 110, one end of the guiding opening 111 is communicated with the outside, and the other end is located inside the supporting frame 120 in a blocking state. And a limit protrusion 123 is protruded on the support frame 120. When the detachable connection assembly is installed, when one part of the support frame 120, which is positioned outside the guide rail a, enters the box shell 110, the limiting convex part 123 also enters the guide opening 111 until the limiting convex part abuts against the inner end of the guide opening 111, and the detachable connection assembly fixes the box shell 110, the support frame 120 and one part of the guide rail a, which is positioned between the box shell 110 and the support frame 120, together.

In order to mount the hoist c on the transmission case, as an example, the supporting frame 120 is provided with a hoist mounting cavity 124 for receiving a part of the hoist c. A crane entrance 112 is formed on the box shell 110 corresponding to the crane installation cavity 124 on the supporting frame 120, and the crane entrance 112 is slightly smaller than the maximum cross section of the crane c, so that during installation, one part of the crane c props the crane entrance 112 open to enter and exit the crane installation cavity 124, and the crane c is not easy to fall off from the box shell 110.

When the elastic expansion assembly 140 is provided, the elastic expansion assembly 140 is disposed adjacent to the crane installation cavity 124 and closer to the detachable connection assembly, and when the elastic expansion assembly 140 is installed, the pair of expansion heads 142 on the elastic expansion assembly 140 abuts against the guide rail a to prevent the crane installation cavity 124 from entering the guide rail a. I.e. after the installation is completed, the crane installation cavity 124 is located outside the guide rail a.

The electric guide rail conveying system can be used as one application of the transmission case, and comprises a guide rail a, a main transmission case, an auxiliary transmission case, a driving motor and a moving vehicle. And the guide rail a is arranged at a relatively high position. And the main transmission case and the auxiliary transmission case are correspondingly arranged at two ends of the guide rail a. And the transmission piece b is arranged on the main transmission box, the guide rail a and the auxiliary transmission box in a ring shape. And the driving motor is arranged on the main transmission box and used for driving the transmission piece b to circularly move. And the moving vehicle is arranged on the transmission piece b, moves on the guide rail a and is used for bearing external objects.

The main transmission case and/or the auxiliary transmission case may include a case 110, a supporting frame 120, a guide wheel 130, the detachable connection assembly, and the elastic expansion assembly 140. And a case 110 having an open end for inserting one end of the guide rail a. The support frame 120, when installed, enters the housing 110 from the open end of the housing 110, and at least one part of the support frame 120 is located in the channel of the guide rail a, and includes an upper support arm 121 and a lower support arm 122. A guide wheel 130 disposed between the upper support arm 121 and the lower support arm 122 on the support frame 120, and an axial direction of the guide wheel 130 is substantially parallel to a height direction of the guide rail, when the guide wheel is installed, the transmission member b in the guide rail a is wound on a portion of an outer side of the guide wheel 130, and then the transmission member b and the guide wheel 130 enter the cabinet 110 along with the support frame 120 from an open end of the cabinet 110. The detachable connecting assembly is arranged between one part of the case shell 110, which is adjacent to the opening end, and one part of the supporting frame 120, which is adjacent to the opening end of the case shell 110, and is fixed together with the case shell 110, the supporting frame 120 and one part of the guide rail a, which is positioned between the case shell 110 and the supporting frame 120, during installation. And an elastic expansion assembly 140 is provided on a portion of the support frame 120 that can be inserted into the passage in the guide rail a. The transmission piece b is of a ring-shaped structure and comprises a pair of linear sides and a pair of arc sides, wherein the linear sides are correspondingly arranged and arranged along the longitudinal direction of the guide rail a, the arc sides are correspondingly arranged, two ends of one arc side are connected to the same end of the pair of linear sides, and two ends of the other arc side are connected to the same other end of the pair of linear sides. When the device is installed, at least the part of the radial peripheral side of the guide wheel 130, which is adjacent to a pair of linear sides of the transmission member b, is not blocked from the outside by the support frame 120.

When the external object carried in the electric guide rail conveying system is the curtain cloth, and a plurality of cranes c which can move and are used for pulling and carrying the curtain cloth are arranged on the guide rail a, the curtain cloth can be used as an electric opening and closing curtain, and when the external object is a spot lamp, the curtain cloth can be used as an electric track lighting system.

In the claims, the word "comprising" does not exclude other elements or steps; the word "a" or "an" does not exclude a plurality. Use of ordinal terms such as "first," "second," etc., in the claims to modify a claim element does not by itself connote any priority, order, or temporal order of execution of one claim element over another, but are used merely for distinguishing one claim element from another. Although certain features may be described in different dependent claims, this does not imply that these features cannot be used in combination. Various aspects of the present invention may be used alone, in combination, or in a variety of arrangements not specifically discussed in the embodiments described in the foregoing and is therefore not limited in its application to the details and arrangement of components set forth in the foregoing description or illustrated in the drawings. For example, aspects described in one embodiment may be combined in any manner with aspects described in other embodiments. The steps, functions or features recited in a plurality of modules or units may be performed or satisfied by one module or one unit. The steps of the methods disclosed herein are not limited to being performed in any particular order, and some or all of the steps may be performed in other orders. Any reference signs in the claims shall not be construed as limiting the scope of the claims.

While the utility model has been described by way of illustration and example, such description and illustration should be considered illustrative or exemplary and not restrictive. Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the utility model as disclosed in the accompanying claims.

Claims

1. A transmission case for connection with an end of an external guide rail having a passage therein, the transmission case comprising:

the support frame, during the installation, follow this case shell of case shell open end entering, just at least one on the support frame is located in the passageway of guide rail, include:

an upper support arm; and

a lower support arm;

the guide wheel is arranged between the upper support arm and the lower support arm on the support frame, the axial direction of the guide wheel is basically parallel to the height direction of the guide rail, when the guide wheel is installed, a transmission piece in the guide rail is wound on one part of the outer side of the guide wheel, and then the transmission piece and the guide wheel enter the box shell along with the support frame from the opening end of the box shell; and

the transmission piece is of a ring-shaped structure and comprises a pair of linear sides and a pair of arc sides, wherein the linear sides are correspondingly arranged and arranged along the longitudinal direction of the guide rail, the arc sides are correspondingly arranged, two ends of one arc side are connected to the same end of the pair of linear sides, and two ends of the other arc side are connected to the same other end of the pair of linear sides;

2. The transmission case of claim 1, wherein:

when the transmission piece is installed, the part on the radial peripheral side of the guide wheel, which is matched with one arc-shaped side on the transmission piece, is not blocked by the support frame with the outside.

3. The transmission case of claim 1, wherein:

the largest cross section of the support frame provided with the guide wheel is smaller than the smallest cross section of a channel in the guide rail;

wherein, the support frame provided with the guide wheel can completely pass in and out the channel in the guide rail.

4. A gear box according to any one of claims 1 to 3, further comprising:

5. The transmission case of claim 4, wherein the resilient telescoping assembly further comprises:

the pair of pressing surfaces are symmetrically arranged, the opposite inner sides of the pair of pressing surfaces are respectively connected with matching surfaces which are tightly matched with the inner sides of the guide rails on the pair of telescopic heads, and the pressing surfaces are obliquely and downwards arranged from the opposite inner sides of the pressing surfaces to the opposite outer sides.

6. The transmission case of claim 1, further comprising:

the guide opening is formed in one side of the box shell, and one end of the guide opening is communicated with the outside;

the limiting convex part is arranged on the supporting frame;

when one part of the support frame, which is positioned outside the guide rail, enters the box shell, the limiting convex part also enters the guide port until the limiting convex part abuts against the inner end of the guide port, and the detachable connecting assembly fixes the box shell, the support frame and one part of the guide rail, which is positioned between the box shell and the support frame, together.

7. The transmission case of claim 1, wherein:

the guide wheel is arranged at one end of the support frame far away from the guide rail;

8. The transmission case of claim 4, further comprising:

the crane installation cavity is arranged on the support frame and is used for accommodating the external crane for hanging objects;

the crane inlet and outlet is formed in the box shell and corresponds to the crane installation cavity in the supporting frame, and the crane inlet and outlet is slightly smaller than the maximum cross section of the crane;

when the crane is installed, one part of the crane props open the crane inlet and outlet to enter and exit the crane installation cavity.

9. The drive housing of claim 1, wherein the detachable connection assembly comprises:

a wrench;

the clamping plate is matched with the clamping rotating piece;

10. A motorized track transport system, comprising:

the main transmission box and the auxiliary transmission box are correspondingly arranged at the two ends of the guide rail;

an upper support arm; and

a lower support arm;

11. An electrically operated opening and closing curtain, comprising:

the main transmission box and the auxiliary transmission box are correspondingly arranged at two ends of the guide rail, and the main transmission box and/or the auxiliary transmission box are/is the transmission box of any one of claims 1 to 9;

cord fabric;

the crane moves on the guide rail and is used for connecting the opposite upper sides of the curtain cloth; and