Electric two-stage lifting support for Christmas tree

Abstract

The application provides a Christmas tree electric two-section lifting support, which comprises a base, a main rod, a first lifting rod, an electric lifting assembly, a second lifting rod and a lifting chain. The Christmas tree lifting support is designed as an electric two-section lifting support. The components of the Christmas tree are sleeved on the support. The Christmas tree support can be lifted by the electric lifting assembly screw linear pushing device. The lifting chain is fixed on the outer side of the main rod. When the first lifting rod is lifted, the lifting chain is lifted and slides to lift the second lifting rod, so that the second lifting rod is lifted synchronously. The lifting speed is faster, the height and volume are smaller after being retracted, and the Christmas tree is more convenient to move and transport.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of Christmas tree devices, in particular to a Christmas tree electric two-section lifting support. BACKGROUND

[0002] Christmas is a traditional holiday in the West, and it is a very popular holiday around the world. Christmas trees are essential. Christmas trees are mainly used to decorate the atmosphere during Christmas. They are commonly used by families and businesses to decorate during the Christmas season. With the rapid growth of social and economic development, more and more families and businesses purchase Christmas trees as decorations for their stores. There are certain requirements for the height of Christmas trees, which are not conducive to transportation and need to be designed to have a lifting function.

[0003] There is a need to solve the problem of the height of the Christmas tree. There are also designs of Christmas trees that can be lifted, such as the support shown in the patent "Novel automatic lifting Christmas tree support" with the publication number CN217285387U. The height and volume of the retracted support are still relatively large, which is not conducive to moving and transporting. Therefore, the lifting Christmas tree support needs to be further designed to further reduce the height and volume. SUMMARY

[0004] Therefore, the present application provides an electric two-section lifting support for a Christmas tree. In view of the problems of the prior art, an electric two-section lifting system is designed to solve the existing technical problems.

[0005] The purpose of the present application is achieved by the following technical solutions:

[0006] An electric two-section lifting support for a Christmas tree includes a base, a support fixed to the base, the support including a main rod, a first lifting rod, an electric lifting assembly, a second lifting rod, and a lifting chain. The main rod, the first lifting rod, and the second lifting rod are all hollow rods. The main rod is fixed to the base at the bottom. The electric lifting assembly is fixed to the bottom of the internal cavity of the main rod. The first lifting rod is slidably sleeved in the center cavity of the main rod. The internal upper end of the main rod is provided with two opposite sliding limit bosses. The outer side of the first lifting rod is provided with two sliding grooves corresponding to the two sliding limit bosses of the main rod. The sliding grooves extend to the bottom of the first lifting rod but do not penetrate the first lifting rod, leaving a closed limit step. The bottom of the first lifting rod is fixedly connected to the upward stroke pushing part of the electric lifting assembly. The electric lifting assembly is electrically connected to an external control power system.

[0007] The second lifting rod is slidably sleeved in the first lifting rod central cavity, the first lifting rod upper end is internally provided with two opposite sliding bosses, the second lifting rod is externally provided with two grooves corresponding to the two sliding bosses of the first lifting rod, the first lifting rod upper end side wall is provided with a turning groove corresponding to the sliding of the lifting chain, the second lifting rod is externally provided with a chain groove corresponding to the entry of the lifting chain, one end of the lifting chain is fixed to the main rod upper segment outside, and the other end of the lifting chain is fixed to the second lifting rod chain groove bottom after turning in the turning groove.

[0008] Further, the electric lifting assembly is a screw linear pushing device.

[0009] Further, the screw linear pushing device comprises a motor, a screw and a pushing seat, the motor is fixed to the main rod inner cavity bottom, the screw is fixedly connected with the motor output shaft and rotates with the motor output shaft, the pushing seat is provided with an internal thread corresponding to the screw and is screwed with the screw, the pushing seat is fixedly connected with the first lifting rod bottom, the screw passes through the pushing seat and extends into the first lifting rod internal cavity, the length of the screw is the same as the lifting height, and the motor is electrically connected with an external control power supply system.

[0010] Further, the screw linear pushing device further comprises a guide rod, an upper limit switch and a lower limit switch, the screw linear pushing device pushing seat side is provided with a guide hole corresponding to the guide rod, the guide rod is fixed to the motor upper side and is located at a parallel position of the screw side edge, the guide rod is equal in length to the screw and extends into the first lifting rod internal cavity together, the guide rod guide hole is slidably sleeved outside the guide rod, the guide rod top end is provided with a mounting table corresponding to the installation of the upper limit switch, the upper limit switch is fixed to the mounting table lower side and faces the pushing seat top surface downward, the lower limit switch is fixed to the guide rod bottom end side and faces the pushing seat bottom surface upward, the guide rod is a hollow rod and is provided with a wire penetrating hole at the bottom end, the upper limit switch is connected in series with the lower limit switch through a wire penetrating the guide rod internal cavity, and the motor is electrically connected with the upper limit switch and the lower limit switch in series and with an external control power supply system.

[0011] The beneficial effects of the present application are that:

[0012] The Christmas tree lifting support is designed as an electric two-section lifting support, the components of the Christmas tree are sleeved outside the support, the Christmas tree support can be lifted through the screw linear pushing device of the electric lifting assembly, the lifting chain is fixed to the main rod outside, the lifting chain is lifted when the first lifting rod is lifted, the second lifting rod is synchronously lifted, the lifting speed is faster, the height and volume are smaller after being retracted, the Christmas tree support is more convenient to move, transport and use. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 Figure 1 is a schematic diagram of the two-stage electric lifting support for Christmas tree in the present application;

[0014] Figure 2 Figure 2 is a schematic diagram of the two-stage electric lifting support for Christmas tree in the present application;

[0015] Figure 3 Figure 3 is a schematic diagram of the screw linear pushing device in the present application.

[0016] The reference signs are explained as follows:

[0017] 1 is the base, 2 is the main rod, 3 is the first lifting rod, 4 is the electric lifting assembly, 5 is the second lifting rod,

[0018] 6 is the lifting chain, 201 is the sliding limiting boss, 301 is the sliding groove, 302 is the limiting step, 303 is the sliding boss, 304 is the turning groove, 401 is the motor, 402 is the screw rod, 403 is the pushing seat, 404 is the guide rod, 405 is the upper limiting switch, 406 is the lower limiting switch, 407 is the guide hole, 408 is the mounting table, 501 is the groove, and 502 is the chain groove. DETAILED DESCRIPTION

[0019] The embodiments of the present application will be described in detail below with reference to the drawings.

[0020] The embodiments of the present application are described below by way of specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification. Obviously, the described embodiments are only some of the embodiments of the present application, not all. The present application can also be implemented or applied by other different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0021] In order to realize multi-stage lifting of Christmas tree and further reduce the height and volume, the specific content of the present application is shown as follows.

[0022] Combination Figure 1 And Figure 2As shown, the embodiment of the present application is a Christmas tree electric two-section lifting support, which comprises a base 1, a support fixed on the base 1, and importantly, the support comprises a main rod 2, a first lifting rod 3, an electric lifting assembly 4, a second lifting rod 5, and a lifting chain 6, wherein the main rod 2, the first lifting rod 3, and the second lifting rod 5 are all hollow rods, the main rod 2 is fixed at the bottom of the base 1, the electric lifting assembly 4 is fixed at the bottom of the internal cavity of the main rod 2, the first lifting rod 3 is slidably sleeved in the central cavity of the main rod 2, the internal upper end of the main rod 2 is provided with two opposite sliding limiting bosses 201, the sliding limiting boss 201 is a small axial cuboid, the outer side of the first lifting rod 3 is provided with two sliding grooves 301 corresponding to the two sliding limiting bosses 201 of the main rod 2, the sliding groove 301 extends to the bottom of the first lifting rod 3 but does not penetrate through the first lifting rod 3 to leave a closed limiting step 302, and the limiting step 302 mainly functions to prevent the first lifting rod 3 from being pushed out too much; the bottom of the first lifting rod 3 is fixedly connected with the upward stroke pushing part of the electric lifting assembly 4, the electric lifting assembly 4 is electrically connected with an external control power supply system, and mainly driven by the electric lifting assembly 4 to lift the first lifting rod 3;

[0023] The second lifting rod 5 is slidably sleeved in the central cavity of the first lifting rod 3, the internal upper end of the first lifting rod 3 is provided with two opposite sliding bosses 303, the outer side of the second lifting rod 5 is provided with two grooves 501 corresponding to the two sliding bosses 303 of the first lifting rod, the upper end side wall of the first lifting rod 3 is provided with a turning groove 304 corresponding to the sliding of the lifting chain 6, the outer side of the second lifting rod 5 is provided with a chain groove 502 corresponding to the intake of the lifting chain 6, one end of the lifting chain 6 is fixed on the outer side of the upper segment of the main rod 2, and the other end of the lifting chain 6 is fixed at the bottom of the chain groove 502 of the second lifting rod 5 after turning in the turning groove 304; when the first lifting rod 3 rises, the turning groove 304 will lift the lifting chain 6, the lifting chain 6 fixed at the end of the main rod 2 cannot move, and the other end will synchronously lift the second lifting rod 5 to rise, thereby realizing the synchronous lifting function of the two sections;

[0024] In this way, the Christmas tree lifting support is designed as an electric two-section lifting support, the components of the Christmas tree are sleeved outside the support, the lifting of the Christmas tree support can be realized by the electric lifting assembly 4, the lifting chain 6 is fixed on the outer side of the main rod 2, the lifting chain 6 is lifted and synchronously slides to lift the second lifting rod 5 when the first lifting rod 3 rises, and the second lifting rod 5 is synchronously lifted, so that the lifting speed is faster, the height and volume are smaller after being retracted, and the Christmas tree is more convenient to move, transport, and use.

[0025] The electric lifting assembly 4 is a screw linear pushing device, as long as it is a device that can realize linear thread pushing, it can be applied, and the pushing speed is not required, but the pushing force should be large enough to lift the components of the Christmas tree.

[0026] More specifically, the screw linear pushing device comprises a motor 401, a screw 402 and a pushing seat 403. The motor 401 is fixed at the bottom of the inner cavity of the main rod 2. The screw 402 is fixedly connected with the output shaft of the motor 401 and rotates with the output shaft of the motor 401. The pushing seat 403 is provided with an internal thread corresponding to the screw 402 and is screwed with the screw 402. The pushing seat 403 is fixedly connected with the bottom of the first lifting rod 3. The screw 402 extends into the internal cavity of the first lifting rod 3 through the pushing seat 403, and the length of the screw 402 is the same as the lifting height. The motor 401 is electrically connected with an external control power supply system. The rotation of the motor 401 drives the rotation of the screw 402. The first lifting rod 3 is limited on the sliding limiting boss 201 by the sliding groove 301 and cannot rotate. The screw 402 rotates to push the pushing seat 403, thereby pushing the first lifting rod 3 to rise, so as to realize the lifting effect.

[0027] Further, as shown in Figure 3 the screw linear pushing device further comprises a guide rod 404, an upper limit switch 405 and a lower limit switch 406. The side surface of the pushing seat 403 of the screw linear pushing device is provided with a guide hole 407 corresponding to the guide rod 404. The guide rod 404 is fixed on the upper side of the motor 401 and is located in parallel with the side of the screw 402. The guide rod 404 is as long as the screw 402 and extends into the internal cavity of the first lifting rod 3 together. The guide hole 407 of the guide rod 404 is slidably sleeved outside the guide rod 404. The guide rod 404 mainly functions to further stabilize the pushing seat 403 and ensure the direction of upward movement of the first lifting rod 3.

[0028] The top end of the guide rod 404 is provided with a mounting table 408 corresponding to the installation of the upper limit switch 405. The upper limit switch 405 is fixed on the lower side of the mounting table 408 and the switch direction faces downward and directly faces the top surface of the pushing seat 403. When the pushing seat 403 moves to the top end of the guide rod 404 and touches the upper limit switch 405, the upper limit switch 405 disconnects the power supply of the motor 401 and stops running, thereby protecting the motor 401.

[0029] The lower limit switch 406 is fixed on the bottom end side of the guide rod 404 and the switch direction faces upward and directly faces the bottom surface of the pushing seat 403. When the pushing seat 403 moves to the bottom end of the guide rod 404 and touches the lower limit switch 406, the lower limit switch 406 disconnects the power supply of the motor 401 and stops running, thereby protecting the motor 401.

[0030] The guide rod 404 is a hollow rod and is provided with a wire penetrating hole. The upper limit switch 405 is connected in series with the lower limit switch 406 through the internal cavity of the guide rod 404. The motor 401 is connected in series with the upper limit switch 405 and the lower limit switch 406 and is electrically connected with an external control power supply system.

[0031] The above merely illustrates the embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made by those skilled in the art within the spirit and principle of the present application without creative labor shall be included in the protection scope of the present application.

Claims

1. A two-stage electric lifting stand for a Christmas tree, comprising a base and a bracket fixed to the base, characterized in that: The bracket includes a main rod, a first lifting rod, an electric lifting assembly, a second lifting rod, and a lifting chain. The main rod, the first lifting rod, and the second lifting rod are all hollow rods. The bottom of the main rod is fixed to the base. The electric lifting assembly is fixed to the bottom of the internal cavity of the main rod. The first lifting rod is slidably fitted inside the central cavity of the main rod. The upper end of the main rod has two opposing sliding limiting bosses. Each sliding limiting boss is a short axial cuboid. The outer side of the first lifting rod has two sliding grooves corresponding to the two sliding limiting bosses of the main rod. The sliding grooves extend to the bottom of the first lifting rod but do not penetrate the first lifting rod, leaving a closed limiting step. The bottom of the first lifting rod is fixedly connected to the upward stroke pushing part of the electric lifting assembly. The electric lifting assembly is electrically connected to an external control power system. The second lifting rod is slidably fitted inside the central cavity of the first lifting rod. The upper end of the first lifting rod has two opposing sliding bosses. The outer side of the second lifting rod has two grooves corresponding to the two sliding bosses of the first lifting rod. The upper side wall of the first lifting rod has a turning groove corresponding to the sliding of the lifting chain. The outer side of the second lifting rod has a chain groove corresponding to the retraction of the lifting chain. One end of the lifting chain is fixed to the outer side of the upper section of the main rod, and the other end of the lifting chain is fixed to the bottom of the chain groove of the second lifting rod after turning in the turning groove.

2. The electric two-section lifting bracket for Christmas trees according to claim 1, characterized in that: The electric lifting assembly is a linear screw-driven device.

3. The electric two-section lifting bracket for Christmas trees according to claim 2, characterized in that: The linear screw drive device includes a motor, a screw, and a drive seat. The motor is fixed to the bottom of the inner cavity of the main rod. The screw is fixedly connected to the output shaft of the motor and rotates with the output shaft. The drive seat is provided with an internal thread corresponding to the screw and is screwed to the screw. The drive seat is fixedly connected to the bottom of the first lifting rod. The screw passes through the drive seat and extends into the inner cavity of the first lifting rod, and the length of the screw is the same as the lifting height. The motor is electrically connected to an external control power supply system.

4. The electric two-section lifting bracket for Christmas trees according to claim 3, characterized in that: The linear screw drive device also includes a guide rod, an upper limit switch, and a lower limit switch. The side of the drive seat of the linear screw drive device has a guide hole corresponding to the guide rod. The guide rod is fixed to the upper side of the motor and located parallel to the side of the screw. The guide rod is the same length as the screw and extends into the internal cavity of the first lifting rod. The guide hole of the guide rod is slidably fitted onto the outside of the guide rod. A mounting platform for the upper limit switch is provided at the top of the guide rod. The upper limit switch is fixed to the lower side of the mounting platform with its switch direction facing downwards and directly opposite the top surface of the drive seat. The lower limit switch is fixed to the side of the bottom end of the guide rod with its switch direction facing upwards and directly opposite the bottom surface of the drive seat. The guide rod is a hollow rod with a wire hole at its bottom end. The upper limit switch is connected in series with the lower limit switch via a wire passing through the internal cavity of the guide rod. The motor, the upper limit switch, and the lower limit switch are connected in series and then electrically connected to an external control power system.

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