Lifting device capable of axially moving back and forth along guide rail

Abstract

The utility model provides a lifting device capable of axially moving back and forth along guide rails, which relates to the technical field of lifting devices and comprises a lifting component, a push rod component and guide rail components, the four guide rail components are arranged on two sides of the push rod component in a mirroring manner, and the two guide rail components close to the push rod component are transversely arranged. The two guide rail assemblies far away from the push rod assembly are longitudinally arranged, lifting assemblies are installed on the surfaces of the guide rail assemblies, screw rods are rotationally arranged in the push rod assemblies, and a control system for driving the lifting assemblies to move up and down in the axis direction of the screw rods is installed at the tops of the push rod assemblies. Due to the fact that the four guide rail assemblies are used, and each guide rail assembly is formed by welding the two double-section ball guide rails, the guide rail assemblies are reinforced, stability during use is greatly improved, shaking generated when the lifting assembly descends to the minimum is reduced, and better use experience is provided for users.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a lifting device that reciprocates axially along a guide rail. Background Art

[0002] In the fields of industrial production, construction industry, and transportation industry, etc., during the working process, it is often necessary to move the position of items. For some heavy items, moving them manually is time-consuming and laborious, and it also poses a safety hazard to workers. Therefore, users usually need to use a lifting device to move the items. By using a lifting device to move the items, the work efficiency and safety can be effectively improved. At the same time, according to the work needs, users can also move their own positions through the lifting device.

[0003] However, due to the single structure of the existing track of the lifting device, the lifting device will sway back and forth during use, greatly reducing the stability during use. And in the existing lifting device, the lifting structure connecting the item is also prone to sway when it reaches the lowest position, reducing the safety performance of the object during movement and the user experience during use. Summary of the Utility Model

[0004] In order to solve the above technical problems in the prior art, the utility model provides a lifting device that reciprocates axially along a guide rail;

[0005] The lifting device that reciprocates axially along a guide rail provided by the utility model adopts the following technical solutions:

[0006] A lifting device that reciprocates axially along a guide rail includes a lifting assembly, a push rod assembly, and a guide rail assembly. Four guide rail assemblies are mirror-symmetrically arranged on both sides of the push rod assembly. Among them, two guide rail assemblies close to the push rod assembly are arranged horizontally, and two guide rail assemblies far from the push rod assembly are arranged vertically. A lifting assembly is installed on the surface of the guide rail assembly. A screw rod is rotatably arranged inside the push rod assembly, and a control system for driving the lifting assembly to move up and down along the axis of the screw rod is installed on the top of the push rod assembly.

[0007] Further, the lifting assembly includes a lower hanging plate, an upper hanging plate, an upper bottom plate and a lower bottom plate. Nylon columns are provided between the upper hanging plate and one of the guide rail assemblies close to the push rod assembly, and nylon columns are also provided between the lower hanging plate and the other guide rail assembly close to the push rod assembly. The upper hanging plate is fixedly connected to the nylon columns and the guide rail assembly by long screws, and the lower hanging plate is also fixedly connected to the nylon columns and the guide rail assembly by long screws. The side walls of the upper hanging plate and the lower hanging plate are fixedly connected to the side walls of the two guide rail assemblies away from the push rod assembly by side screws. The middle parts of the upper bottom plate and the lower bottom plate are fixedly connected to the push rod assembly. The positions of the upper bottom plate and the lower bottom plate close to the middle are fixedly connected to the two guide rail assemblies close to the push rod assembly. The side walls of the upper bottom plate and the lower bottom plate are fixedly connected to the inner walls of the two guide rail assemblies away from the push rod assembly by fourth screws.

[0008] Further, the control system includes a control box body and a control box cover. The control box body is fixedly installed on the top of the push rod assembly. A control box cover is installed on the upper part of the control box body. A horn is fixedly installed inside the control box body, and a bridge-shaped pressure plate for pressing the wire is fixedly connected inside the control box body.

[0009] Further, the guide rail assembly is welded by two double-joint ball rails.

[0010] Further, the double-joint ball rail includes an outer rail, balls and an inner rail. The outer rail and the inner rail are respectively arranged on the outer part of the double-joint ball rail. A ball fixing piece is arranged between the outer rail and the inner rail. Balls are rotatably arranged between the inner rail and the ball fixing piece. The inner rails of the two double-joint ball rails are aligned in length and width and riveted together to form the guide rail assembly.

[0011] Further, the push rod assembly includes a motor, a motor fixing seat, a turbine, a screw rod, a lower end cover, and profile outer tubes A and B. Profile outer tubes A and B are respectively arranged on both sides of the push rod assembly. There is a gap between profile outer tube A and profile outer tube B. A screw rod is rotatably arranged between profile outer tube A and profile outer tube B. The middle parts of the upper bottom plate and the lower bottom plate are fixedly connected to the outer surface of profile outer tube B. The motor is fixedly installed on the motor fixing seat by seventh screws. A turbine is rotatably arranged inside the motor fixing seat. The motor and the turbine are in transmission connection.

[0012] Further, a turbine fixing plate is fixedly connected to the motor fixing seat. An upper end cover is fixedly installed at the inner bottom of the control box body. The turbine fixing plate is fixedly connected to the upper end cover by eighth screws. Bearings A and B are respectively arranged inside the upper end cover and the lower end cover, and the upper end cover and the lower end cover are respectively fixedly arranged at the upper and lower ends of profile outer tube A and profile outer tube B.

[0013] Further, the control box body is fixed between the upper end cover, the profile outer tube A and the profile outer tube B.

[0014] Further, one end of the screw rod is in transitional fit with the bearing B inside the lower end cover, and the other end is in transitional fit with the bearing A inside the upper end cover and then forms a transmission connection with the turbine. A snap ring is connected to the upper end cover by interference fit, and a slider is arranged on the screw rod for transmission.

[0015] Further, the two end parts on both sides of the slider respectively pass through the gap between the profile outer tube A and the profile outer tube B and can move along the axial direction of the screw rod. After the two end parts on both sides of the slider pass through the gap between the profile outer tube A and the profile outer tube B, they are fixedly connected to the upper hanging plate by short screws. By moving the slider along the axial direction of the screw rod, the upper hanging plate is driven to move along the axial direction of the screw rod.

[0016] In summary, the beneficial effects of the present utility model are as follows:

[0017] By providing four groups of guide rail assemblies, when in use, an object is fixed on the lifting assembly, and then the motor is started. The motor drives the turbine to rotate, the turbine drives the screw rod to rotate, and the screw rod drives the slider to move along the axial direction of the screw rod, thereby driving the upper hanging plate, the lower hanging plate and the four groups of guide rail assemblies to move along the axial direction of the screw rod. When the lifting assembly rises or falls to reach the limit dimension or encounters an obstacle during the process, the present utility model will stop the axial movement, and this is used as a limit to meet the daily use needs of users. Since the present utility model uses four groups of guide rail assemblies, and each group of guide rail assemblies is welded by two double-joint ball guide rails, the guide rail assemblies are strengthened, so as to avoid the drawbacks of most products on the market shaking back and forth during use, greatly increasing the stability during use and reducing the shaking generated when the lifting assembly drops to the lowest position, increasing the safety performance of the object during the moving process and giving users a better use experience. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is an exploded view schematic diagram of the present utility model;

[0020] Figure 3 is an exploded view schematic diagram of the push rod assembly of the present utility model;

[0021] Figure 4 is a cross-sectional view schematic diagram of the guide rail assembly of the present utility model.

[0022] In the figure: 1 - lifting component; 2 - push rod component; 3 - guide rail component; 11 - control box cover; 111 - control box body; 112 - first screw; 12 - speaker; 121 - second screw; 13 - bridge-shaped pressing plate; 131 - third screw; 14 - upper bottom plate; 141 - fourth screw; 142 - fifth screw; 143 - sixth screw; 15 - lower bottom plate; 16 - lower hanging plate; 161 - long screw; 162 - side screw; 17 - nylon column; 18 - upper hanging plate; 181 - short screw; 21 - motor; 22 - motor fixing seat; 221 - seventh screw; 23 - turbine; 24 - turbine fixing plate; 25 - bearing A; 251 - circlip; 26 - upper end cover; 261 - eighth screw; 27 - slider; 28 - screw rod; 29 - profile outer tube A; 291 - profile outer tube B; 292 - bearing B; 293 - lower end cover; 294 - bottom screw; 31 - outer guide rail; 32 - ball; 33 - inner guide rail; 34 - ball fixing piece. Detailed implementation mode

[0023] The present utility model will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but do not limit the present utility model.

[0024] Embodiment: As Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, a lifting device that reciprocates axially along a guide rail.

[0025] Referring to Figure 1 shown, the present utility model discloses a lifting device that reciprocates axially along a guide rail, including a lifting component 1, a push rod component 2 and a guide rail component 3. Four guide rail components 3 are mirror-symmetrically arranged on both sides of the push rod component 2. Among them, two guide rail components 3 close to the push rod component 2 are arranged horizontally, and two guide rail components 3 far from the push rod component 2 are arranged vertically. A lifting component 1 is installed on the surface of the guide rail component 3, and a control system for driving the lifting component 1 to move up and down in the vertical direction along the push rod component 2 is installed on the top of the push rod component 2.

[0026] Preferably, for the specific structure of the lifting component 1, refer to Figure 2As shown in the figure, it includes a lower hanging plate 16, an upper hanging plate 18, an upper bottom plate 14 and a lower bottom plate 15. A nylon column 17 is provided between the upper hanging plate 18 and a guide rail assembly 3 close to the push rod assembly 2, and a nylon column 17 is also provided between the lower hanging plate 16 and another guide rail assembly 3 close to the push rod assembly 2. The upper hanging plate 18 is fixedly connected to the nylon column 17 and the guide rail assembly 3 by a long screw 161, and the lower hanging plate 16 is also fixedly connected to the nylon column 17 and the guide rail assembly 3 by a long screw 161. The side walls of the upper hanging plate 18 and the lower hanging plate 16 are fixedly connected to the side walls of the two guide rail assemblies 3 far from the push rod assembly 2 by side screws 162. The middle parts of the upper bottom plate 14 and the lower bottom plate 15 are fixedly connected to the push rod assembly 2, and the positions of the upper bottom plate 14 and the lower bottom plate 15 close to the middle are fixedly connected to the two guide rail assemblies 3 close to the push rod assembly 2. Preferably, the positions of the upper bottom plate 14 and the lower bottom plate 15 close to the middle are fixedly connected to the two guide rail assemblies 3 close to the push rod assembly 2 by a sixth screw 143. The side walls of the upper bottom plate 14 and the lower bottom plate 15 are fixedly connected to the inner walls of the two guide rail assemblies 3 far from the push rod assembly 2 by fourth screws 141.

[0027] Referring to Figure 2 As shown in the figure, the control system includes a control box body 111 and a control box cover 11. The control box body 111 is fixedly installed on the top of the push rod assembly 2, and a control box cover 11 is installed on the upper part of the control box body 111. Preferably, the control box cover 11 is fixedly installed on the upper part of the control box body 111 by a first screw 112. A speaker 12 is fixedly installed inside the control box body 111. Preferably, the speaker 12 is fixedly installed on the bottom wall inside the control box body 111 by a second screw 121. A bridge-shaped pressure plate 13 for pressing the wire is fixedly connected inside the control box body 111. Preferably, the bridge-shaped pressure plate 13 is fixedly installed on the bottom wall inside the control box body 111 by a third screw 131.

[0028] Preferably, referring to Figure 4 As shown in the figure, the guide rail assembly 3 is welded by two double-joint ball guide rails. The double-joint ball guide rail includes an outer guide rail 31, balls 32 and an inner guide rail 33. The outer guide rail 31 and the inner guide rail 33 are respectively arranged at the outer part of the double-joint ball guide rail. A ball fixing piece 34 is arranged between the outer guide rail 31 and the inner guide rail 33, and balls 32 are arranged to roll between the inner guide rail 33 and the ball fixing piece 34. The inner guide rails 33 of the two double-joint ball guide rails are aligned in length and width and riveted together to form the guide rail assembly 3.

[0029] Referring to Figure 3As shown in the figure, the push rod assembly 2 includes a motor 21, a turbine 23, a screw rod 28, a lower end cover 293, and a profile outer tube A29 and a profile outer tube B291. The profile outer tube A29 and the profile outer tube B291 are respectively arranged on both sides of the push rod assembly 2. There is a gap between the profile outer tube A29 and the profile outer tube B291. A screw rod 28 is rotatably arranged between the profile outer tube A29 and the profile outer tube B291. The middle parts of the upper bottom plate 14 and the lower bottom plate 15 are fixedly connected to the outer surface of the profile outer tube B291. Preferably, the middle parts of the upper bottom plate 14 and the lower bottom plate 15 are fixedly installed on the outer surface of the profile outer tube B291 through the fifth screw 142. The motor 21 is fixedly installed on the motor fixing seat 22 through the seventh screw 221. A turbine 23 is rotatably arranged inside the motor fixing seat 22. The motor 21 and the turbine 23 form a transmission connection. A turbine fixing plate 24 is fixedly connected to the motor fixing seat 22. The inner bottom of the control box body 111 is fixedly installed with an upper end cover 26. The turbine fixing plate 24 is fixedly connected to the upper end cover 26 through the eighth screw 261. Bearings A25 and bearings B292 are respectively arranged inside the upper end cover 26 and the lower end cover 293. The upper end cover 26 and the lower end cover 293 are respectively fixedly arranged at the upper and lower ends of the profile outer tube A29 and the profile outer tube B291. Preferably, the lower end cover 293 is fixedly installed at the bottoms of the profile outer tube B291 and the profile outer tube A29 through the bottom screw 294. The control box body 111 is fixed between the upper end cover 26 and the profile outer tube A29 and the profile outer tube B291. One end of the screw rod 28 is in transitional fit with the bearing B292 inside the lower end cover 293, and the other end is in transitional fit with the bearing A25 inside the upper end cover 26 and then forms a transmission connection with the turbine 23. A snap ring 251 is connected in the upper end cover 26 by interference fit. A slider 27 is arranged on the screw rod 28 in a transmission manner. The end parts on both sides of the slider 27 respectively pass through the gap between the profile outer tube A29 and the profile outer tube B291 and can move along the axial direction of the screw rod 28. The end parts on both sides of the slider 27 pass through the gap between the profile outer tube A29 and the profile outer tube B291 and are fixedly connected to the upper hanging plate 18 through the short screw 181. By moving the slider 27 along the axial direction of the screw rod 28, the upper hanging plate 18 is driven to move along the axial direction of the screw rod 28.

[0030] When in use, an object is fixed on the lifting assembly 1, and signals are transmitted to the motor 21 through methods such as sockets, voice control, and touch control, so that the motor 21 is powered on. After the motor 21 is powered on, it drives the turbine 23 to rotate. The turbine 23 drives the screw rod 28 to rotate. The screw rod 28 drives the slider 27 to move along the axial direction of the screw rod 28, thereby driving the upper hanging plate 18, the lower hanging plate 16, and the four groups of guide rail assemblies 3 to move along the axial direction of the screw rod 28. When the lifting assembly 1 rises or falls to reach the limit dimension or encounters an obstacle, the axial movement of the present invention will stop, and this is used as a limit to meet the daily use needs of users.

[0031] Since the utility model uses four groups of guide rail assemblies 3, and each group of guide rail assemblies 3 is welded by two double-joint ball guide rails, the guide rail assemblies 3 are strengthened, so as to avoid the drawbacks of most products on the market shaking back and forth during use, greatly increasing the stability during use and reducing the shaking generated when the lifting assembly 1 drops to the lowest position, increasing the safety performance of the object during the moving process and giving users a better use experience.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Each component mentioned in the utility model is a common technology in the existing field, and those skilled in the art of this industry should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. A lifting device that reciprocates axially along a guide rail, comprising a lifting assembly (1), a push rod assembly (2) and a guide rail assembly (3). Four guide rail assemblies (3) are mirror-symmetrically arranged on both sides of the push rod assembly (2). It is characterized in that, Two guide rail assemblies (3) close to the push rod assembly (2) are arranged horizontally, and two guide rail assemblies (3) far from the push rod assembly (2) are arranged longitudinally. A lifting assembly (1) is installed on the surface of the guide rail assembly (3). A screw (28) is rotatably arranged inside the push rod assembly (2), and a control system for driving the lifting assembly (1) to move up and down along the axis of the screw (28) is installed at the top of the push rod assembly (2).

2. The lifting device that reciprocates axially along the guide rail according to claim 1, characterized in that, The lifting assembly (1) includes a lower hanging plate (16), an upper hanging plate (18), an upper bottom plate (14) and a lower bottom plate (15). Nylon columns (17) are arranged between the upper hanging plate (18) and one guide rail assembly (3) close to the push rod assembly (2), and nylon columns (17) are also arranged between the lower hanging plate (16) and the other guide rail assembly (3) close to the push rod assembly (2). The upper hanging plate (18) is fixedly connected to the nylon column (17) and the guide rail assembly (3) by long screws (161), and the lower hanging plate (16) is fixedly connected to the nylon column (17) and the guide rail assembly (3) by long screws (161). The side walls of the upper hanging plate (18) and the lower hanging plate (16) are fixedly connected to the side walls of the two guide rail assemblies (3) far from the push rod assembly (2) by side screws (162). The middle parts of the upper bottom plate (14) and the lower bottom plate (15) are fixedly connected to the push rod assembly (2). The positions of the upper bottom plate (14) and the lower bottom plate (15) close to the middle are fixedly connected to the two guide rail assemblies (3) close to the push rod assembly (2). The side walls of the upper bottom plate (14) and the lower bottom plate (15) are fixedly connected to the inner walls of the two guide rail assemblies (3) far from the push rod assembly (2) by fourth screws (141).

3. The lifting device that reciprocates axially along the guide rail according to claim 2, characterized in that, The control system includes a control box body (111) and a control box cover (11). The control box body (111) is fixedly installed at the top of the push rod assembly (2). The control box cover (11) is installed on the upper part of the control box body (111). A horn (12) is fixedly installed inside the control box body (111). A bridge-shaped pressure plate (13) for pressing the wire is fixedly connected inside the control box body (111).

4. A lifting device that reciprocates axially along a guide rail according to claim 3, characterized in that, The guide rail assembly (3) is welded by two double-joint ball guide rails.

5. The lifting device that reciprocates axially along the guide rail according to claim 4, wherein, The double-joint ball guide rail includes an outer guide rail (31), balls (32) and an inner guide rail (33). The outer guide rail (31) and the inner guide rail (33) are respectively arranged on the outer part of the double-joint ball guide rail. A ball fixing piece (34) is arranged between the outer guide rail (31) and the inner guide rail (33). Balls (32) are rotatably arranged between the inner guide rail (33) and the ball fixing piece (34). The guide rail assembly (3) is formed by riveting the inner guide rails (33) of the two double-joint ball guide rails with their lengths and widths aligned.

6. The lifting device that reciprocates axially along the guide rail according to claim 5, wherein, The push rod assembly (2) includes a motor (21), a motor fixing seat (22), a turbine (23), a screw rod (28), a lower end cover (293), and profile outer tubes A (29) and B (291). Profile outer tubes A (29) and B (291) are respectively arranged on both sides of the push rod assembly (2). There is a gap between profile outer tube A (29) and profile outer tube B (291). A screw rod (28) is rotatably arranged between profile outer tube A (29) and profile outer tube B (291). The middle parts of the upper bottom plate (14) and the lower bottom plate (15) are fixedly connected to the outer surface of profile outer tube B (291). The motor (21) is fixedly installed on the motor fixing seat (22) through a seventh screw (221). A turbine (23) is rotatably arranged inside the motor fixing seat (22). The motor (21) and the turbine (23) form a transmission connection.

7. The lifting device that reciprocates axially along the guide rail according to claim 6, characterized in that, A turbine fixing plate (24) is fixedly connected to the motor fixing seat (22). The upper end cover (26) is fixedly installed at the inner bottom of the control box body (111). The turbine fixing plate (24) is fixedly connected to the upper end cover (26) through an eighth screw (261). A bearing A (25) and a bearing B (292) are respectively arranged inside the upper end cover (26) and the lower end cover (293). And the upper end cover (26) and the lower end cover (293) are respectively fixedly arranged at the upper and lower ends of profile outer tube A (29) and profile outer tube B (291).

8. A lifting device that reciprocates axially along a guide rail according to claim 7, characterized in that, The control box body (111) is fixed between the upper end cover (26), profile outer tube A (29), and profile outer tube B (291).

9. The lifting device that reciprocates axially along the guide rail according to claim 7, wherein One end of the screw rod (28) has an interference fit with the bearing B (292) inside the lower end cover (293). The other end has an interference fit with the bearing A (25) inside the upper end cover (26) and then forms a transmission connection with the turbine (23). A snap ring (251) is connected with an interference fit inside the upper end cover (26). A slider (27) is arranged on the screw rod (28) for transmission.

10. The lifting device that reciprocates axially along the guide rail according to claim 9, wherein, The end parts on both sides of the slider (27) respectively pass through the gap between profile outer tube A (29) and profile outer tube B (291) and can move along the axial direction of the screw rod (28). After the end parts on both sides of the slider (27) pass through the gap between profile outer tube A (29) and profile outer tube B (291), they are fixedly connected to the upper hanging plate (18) through short screws (181). By moving the slider (27) along the axial direction of the screw rod (28), the upper hanging plate (18) is driven to move along the axial direction of the screw rod (28).

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