A new telescopic support device

Abstract

The utility model discloses a novel telescopic support device, including telescopic scissor fork mechanism, power source, screw nut pair, protection device and counterweight, the telescopic scissor fork mechanism middle installation has screw nut pair, telescopic scissor fork mechanism upper end with telescopic conveyor foremost telescopic machine frame is connected, one end of screw nut pair is linked with power source, and power source is linked with the screw rod of screw nut pair through the key, and the nut block of screw nut pair is fixed at the cross point of telescopic scissor fork mechanism, and the other end of screw nut pair is provided with counterweight, and counterweight is cooperated with protection device, and protection device sets up on the nut block of screw nut pair one side. The utility model discloses after telescopic conveyor telescopic arm stretches out, strengthens the support intensity of foremost telescopic arm, strengthens the support intensity of other telescopic arm simultaneously, improves the stability of all telescopic arms, prolongs the service life of telescopic conveyor.

Description

Technical Field

[0001] This utility model relates to the field of telescopic conveyor technology, specifically to a novel telescopic support device. Background Technology

[0002] Currently, with the telescopic arms fully extended, the stability of all telescopic arms relies on the guide wheels and rails on the telescopic conveyor itself. However, with increased usage time, the combined effects of wear and tear and frame deformation can cause the telescopic arms to become sluggish and jammed. Furthermore, during some unloading processes, goods may be manually thrown directly onto the foremost telescopic arm, which will exacerbate wear and deformation, severely impacting the lifespan of the telescopic conveyor.

[0003] Therefore, this utility model designs a novel telescopic support device, installed on the frontmost frame. After all telescopic arms are extended, the telescopic support device installed on the frontmost frame extends manually, with its lower end supporting the truck or work platform, increasing the stability and support strength of all telescopic arms of the telescopic conveyor. When it is necessary to retract the telescopic conveyor, the telescopic support device can be retracted manually. After the telescopic support device is retracted, the telescopic conveyor is retracted to the required position; then, the telescopic support device can be extended manually again, with its lower end supporting the truck or work platform. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a novel telescopic support device, installed on the telescopic frame at the front end of a telescopic conveyor. The telescopic support device can be manually extended or retracted as needed. When extended, the telescopic support device increases the stability and support strength of all telescopic arms of the telescopic conveyor; when retracted, it does not affect the normal telescopic extension and retraction functions and the transport of goods by the telescopic conveyor.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A novel telescopic support device includes a telescopic scissor mechanism, a power source, a lead screw and nut pair, a protective device, and a counterweight. The lead screw and nut pair is installed in the middle of the telescopic scissor mechanism. The upper end of the telescopic scissor mechanism is connected to the front telescopic frame of the telescopic conveyor. One end of the lead screw and nut pair is connected to the power source. The power source is connected to the lead screw of the lead screw and nut pair via a key. The nut block of the lead screw and nut pair is fixed at the intersection of the telescopic scissor mechanism. A counterweight is provided at the other end of the lead screw and nut pair. The counterweight cooperates with the protective device, which is located on the nut block on one side of the lead screw and nut pair.

[0006] Preferably, the telescopic scissor lift mechanism is assembled from stainless steel plates hinged together by connecting shafts or bolts. The stainless steel plates have a hollowed-out design in the middle.

[0007] Preferably, the power source is one of a brushless DC geared motor combination, a conventional three-phase geared motor combination, or a servo geared motor combination.

[0008] Preferably, the screw and nut assembly is one of trapezoidal thread, ordinary thread, or ball screw assembly.

[0009] Preferably, the balance block is a circular steel plate with a weight close to or equal to that of the power source.

[0010] Preferably, the protection device is a combination of limit switches and limit brackets, or a rotary encoder as a confirmation and protection structure for the start and end points of the position. This ensures the lead screw and nut pair operates within their effective working stroke, preventing the lead screw and nut from jamming and causing overcurrent damage to the motor.

[0011] The beneficial effects of this utility model are:

[0012] The telescopic support device provided by this utility model is installed on the foremost telescopic frame of a telescopic conveyor. After the telescopic arm of the telescopic conveyor extends, it strengthens the support of the foremost telescopic arm, and also strengthens the support of other telescopic arms, thereby improving the stability of all telescopic arms and extending the service life of the telescopic conveyor. Attached Figure Description

[0013] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;

[0014] Figure 1 Extended front view of the new telescopic support device;

[0015] Figure 2 Retracted main view of the novel telescopic support device;

[0016] Figure 3 This is a right view of the new telescopic support device. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Reference Figure 1-3The specific embodiment adopts the following technical solution: A novel telescopic support device includes a telescopic scissor mechanism 1, a power source 2, a lead screw and nut assembly 3, a protection device 4, and a balance block 5. The lead screw and nut assembly 3 is installed in the middle of the telescopic scissor mechanism 1. The upper end of the telescopic scissor mechanism 1 is connected to the telescopic frame 6 at the front end of the telescopic conveyor. When the telescopic scissor mechanism 1 is not working, the lower end is suspended. When working, the lower end is supported on the bottom plate of the truck cargo box or the unloading platform. One end of the lead screw and nut assembly 3 is connected to the power source 2. The power source 2 is connected to the lead screw 31 of the lead screw and nut assembly 3 via a key. The nut block 32 of the lead screw and nut assembly 3 is fixed at the intersection of the telescopic scissor mechanism 1. The other end of the lead screw and nut assembly 3 is provided with a balance block 5. The balance block 5 cooperates with the protection device 4. The protection device 4 is set on the nut block on one side of the lead screw and nut assembly 3.

[0019] It is worth noting that the telescopic scissor lift mechanism 1 is assembled from stainless steel plates hinged together by connecting shafts or bolts. The stainless steel scissor lift plates have a hollowed-out structure in the middle.

[0020] It is worth noting that the power source 2 is one of the following: a brushless DC geared motor combination, a conventional three-phase geared motor combination, or a servo geared motor combination.

[0021] It is worth noting that the aforementioned lead screw and nut assembly 3 is one of trapezoidal thread, ordinary thread, or ball screw assembly. The rotational motion of the power source 2 drives the lead screw to rotate, which in turn drives the nut to move horizontally. The horizontal movement of the nut causes the lower end of the telescopic scissor mechanism 1 to extend or retract.

[0022] It is worth noting that the protection device 4 is a combination of a limit switch and a limit bracket, or a rotary encoder, serving as a confirmation protection structure for the start and end points of the position. The protection device 4 moves along with the nut of the lead screw and nut assembly 3. The rotation of the lead screw of the lead screw and nut assembly 3 drives the balance block 5 to move horizontally. When the balance block 5 presses against the protection device 4, the entire telescopic support device is de-energized and stops operating; it can only operate in the reverse direction.

[0023] Furthermore, the balance block 5 is a circular steel plate with a weight close to that of the power source 2. This ensures that the telescopic scissor mechanism 1 remains basically balanced on both sides; the balance block 5 also functions as a limiting plate for the trigger protection device 4. The balance block 5 is installed on the lead screw of the lead screw and nut assembly 3, and the lead screw and nut assembly can be kept basically level by adjusting the specific position of the balance block 5.

[0024] The telescopic scissor lift mechanism in this specific embodiment is assembled from stainless steel plates hinged together by connecting shafts or bolts. To reduce the weight of the entire telescopic support, the stainless steel scissor lift plates are hollowed out in the middle. The lead screw and nut assembly is installed in the middle position of the telescopic scissor lift. The lead screw rotates with the motor, and the nut block is fixed on the scissor lift frame. The rotational movement of the lead screw drives the horizontal linear movement of the nut block, thereby driving the vertical movement of the scissor lift frame. The balance block is made of a steel plate and is used to balance the weight of the motor on the other side, ensuring that the scissor lift maintains basic left-right balance. The protective device is installed on the nut block. The power system is a brushless DC geared motor, installed on the other side of the lead screw. The protective device is installed on the nut block to protect the lead screw and nut assembly from operating within the effective working stroke, preventing the lead screw and nut from jamming and causing overcurrent damage to the motor. This telescopic support device is used for logistics conveying equipment with an suspended front end, where the front-end support strength needs to be strengthened.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel telescopic support device, characterized in that, The telescopic scissor lift includes a telescopic scissor lift mechanism (1), a power source (2), a lead screw and nut pair (3), a protection device (4), and a balance block (5). The telescopic scissor lift mechanism (1) has a lead screw and nut pair (3) installed in the middle. The upper end of the telescopic scissor lift mechanism (1) is connected to the telescopic frame at the front end of the telescopic conveyor. One end of the lead screw and nut pair (3) is connected to the power source (2). The power source (2) is connected to the lead screw (31) of the lead screw and nut pair (3) via a key. The nut block (32) of the lead screw and nut pair (3) is fixed at the intersection of the telescopic scissor lift mechanism (1). The other end of the lead screw and nut pair (3) is equipped with a balance block (5). The balance block (5) cooperates with the protection device (4). The protection device (4) is set on the nut block on one side of the lead screw and nut pair (3).

2. The novel telescopic support device according to claim 1, characterized in that, The telescopic scissor mechanism (1) is composed of stainless steel plates hinged together by connecting shafts or bolts, and the stainless steel plates have a hollowed-out design in the middle.

3. The novel telescopic support device according to claim 1, characterized in that, The power source (2) is one of the following: a brushless DC geared motor combination, a common three-phase geared motor combination, or a servo geared motor combination.

4. The novel telescopic support device according to claim 1, characterized in that, The screw nut assembly (3) is one of trapezoidal thread, ordinary thread, or ball screw assembly.

5. A novel telescopic support device according to claim 1, characterized in that, The balance block (5) is a circular steel plate with the same weight as the power source (2).

6. A novel telescopic support device according to claim 1, characterized in that, The protection device (4) is a combination of limit switch and limit bracket or a rotary encoder as a confirmation protection structure for the start and end points of the position.

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