Self-locking stroke telescopic vertical pipe

Abstract

The utility model relates to a self-locking type stroke telescopic vertical pipe which comprises an inner vertical pipe and an outer vertical pipe, and an upper limiting wheel and a lower limiting wheel are hinged to the peripheral face of the inner vertical pipe. A kidney-shaped groove is formed in the peripheral face of the bottom of the outer vertical pipe. One end, close to the outer vertical pipe, of the mounting plate is a plate near end, and the other end of the mounting plate is a plate far end; a swinging plate is fixedly arranged at the top of the excess material receiving box, the middle of the swinging plate is hinged to the near end of the mounting plate, the end, close to the outer vertical pipe, of the swinging plate is arranged as a driving end, and the other end of the swinging plate is arranged as a swinging end. The vertical pipe is accurately limited when ascending to the highest position and descending to the lowest position, the risk that the vertical pipe exceeds the preset stroke range is avoided, the accuracy and safety of material conveying are ensured, and meanwhile equipment is protected against unnecessary damage.

Description

Technical Field

[0001] This utility model relates to the field of telescopic plumb line technology, specifically a self-locking telescopic plumb line. Background Technology

[0002] As a common material conveying device, the existing vertical pipe lacks a limiting mechanism, which may cause the vertical pipe to exceed the predetermined safety range during the upward or downward movement. This not only affects the accurate transmission of materials, but may also damage the equipment and even cause safety accidents. In addition, after the vertical pipe stops conveying materials, some dripping residual material often adheres to its inner wall. If this residual material is not cleaned in time, it will not only cause material waste, but may also mix into the new material when the inner vertical pipe is used again, affecting the quality of the material. Therefore, the existing vertical pipe lacks both stroke limiting and residual material collection, which makes residual material cleaning difficult and inefficient.

[0003] Therefore, in order to solve the problems of existing vertical pipe devices in terms of extension stroke control and residual material handling, we have made technical improvements to the existing vertical pipe to meet the requirements of limiting the vertical pipe stroke and effectively receiving and handling the dripping residual material adhering to the inner wall of the inner vertical pipe when no material is being conveyed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a self-locking telescopic vertical pipe that can limit the extension and retraction stroke of the vertical pipe and can catch the residual material dripping from the inner wall of the inner vertical pipe when the vertical pipe is not conveying material.

[0005] The technical problem to be solved by this utility model is achieved through the following technical solution: a self-locking travel telescopic plumb tube, which includes an inner plumb tube and an outer plumb tube, wherein the inner plumb tube is concentrically arranged inside the outer plumb tube.

[0006] An upper limit wheel and a lower limit wheel are hinged to the outer circumferential surface of the inner plumb tube;

[0007] A waist-shaped groove is vertically provided on the bottom outer circumference of the outer tube for the upper limit wheel and the lower limit wheel to move up and down, thereby limiting the stroke of the inner tube when it moves up to the highest position or down to the lowest position.

[0008] The mounting plate is fixed to the outer circumferential surface of the outer plumb tube. One end of the mounting plate near the outer plumb tube is designated as the plate proximal end, and the other end is designated as the plate distal end.

[0009] The waste material receiving box has a swing plate fixed on its top. The middle part of the swing plate is hinged to the near end of the mounting plate. One end of the swing plate near the outer vertical tube is set as the driving end and the other end is set as the swing end. The driving end of the swing plate is placed between the upper limit wheel and the lower limit wheel, thereby driving the swing end of the swing plate to swing and selectively driving the waste material receiving box to swing directly below the inner vertical tube for waste material collection.

[0010] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the self-locking travel telescopic vertical tube described above has an elastic element provided on the mounting plate. One end of the elastic element is hinged to the far end of the mounting plate, and the other end is hinged to the swing end of the swing plate, thereby assisting the swing of the swing plate.

[0011] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the elastic element of the self-locking stroke telescopic vertical tube described above is a compression spring.

[0012] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the self-locking travel telescopic vertical tube described above, wherein the upper limit wheel and the lower limit wheel are hinged one above the other on the outer circumferential surface of the inner vertical tube.

[0013] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the self-locking travel telescopic vertical tube described above, wherein the mounting plate is vertically fixed on the outer circumferential surface of the outer vertical tube.

[0014] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the self-locking travel telescopic vertical tube described above, wherein the top of the surplus material receiving box is fixed on the bottom surface of the swing end of the swing plate.

[0015] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the self-locking travel telescopic vertical tube described above has an opening at the top of the waste material receiving box facing the bottom end of the inner vertical tube, so as to facilitate the waste material attached to the inner wall of the inner vertical tube to drip into the waste material receiving box.

[0016] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0017] (1) By hinged upper limit wheel and lower limit wheel on the outer circumferential surface of the inner vertical tube and opening a corresponding waist-shaped groove at the bottom of the outer vertical tube, the vertical tube is accurately limited when it moves up to the highest position and down to the lowest position, avoiding the risk of the vertical tube exceeding the predetermined stroke range, ensuring the accuracy and safety of material transmission, and also protecting the equipment from unnecessary damage.

[0018] (2) By combining the swing plate and the waste material receiving box, the waste material adhering to the inner wall of the inner vertical pipe can be effectively received. When the vertical pipe stops conveying material, the waste material can fall smoothly into the waste material receiving box, avoiding material waste and pollution caused by dripping. In addition, the design of the swing plate allows the waste material receiving box to swing to the bottom of the inner vertical pipe as needed, further improving the efficiency and convenience of waste material receiving.

[0019] (3) By fixing the mounting plate on the outer vertical tube and setting the elastic element on the mounting plate, the elastic potential energy of the elastic element can provide a certain support force and boost force for the swing of the swing plate. On the one hand, it enhances the structural stability of the whole device, and on the other hand, it enables the swing plate to swing more smoothly and reliably under the push of the drive end. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model before use;

[0021] Figure 2 This is a schematic diagram of the main structure when the present invention is in use.

[0022] Reference numerals: 1. Inner plumb tube; 2. Outer plumb tube; 3. Upper limit wheel; 4. Lower limit wheel; 5. Waist-shaped groove; 6. Proximal end of plate; 7. Far end of plate; 8. Residual material receiving box; 9. Drive end; 10. Swinging end; 11. Opening; 12. Elastic element; 13. Tanker opening. Detailed Implementation

[0023] The specific technical solutions of this utility model are further described below with reference to the accompanying drawings, so as to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.

[0024] Example 1, referring to Figure 1-2 A self-locking travel telescopic vertical tube includes an inner vertical tube 1 and an outer vertical tube 2. The inner vertical tube 1 is concentrically arranged inside the outer vertical tube 2, forming a circular tube structure. Its power mechanism is existing technology, so the specific lifting principle of the inner vertical tube 1 will not be described here.

[0025] An upper limit wheel 3 and a lower limit wheel 4 are hinged to the outer circumferential surface of the inner vertical tube 1. The upper limit wheel 3 and the lower limit wheel 4 are hinged one above the other on the outer circumferential surface of the inner vertical tube 1.

[0026] To ensure that the inner vertical tube 1 has certain limits when moving vertically, a waist-shaped groove 5 is vertically provided on the bottom outer circumference of the outer vertical tube 2 for the upper limit wheel 3 and the lower limit wheel 4 to move up and down. The waist-shaped groove 5 is set vertically to limit the stroke of the inner vertical tube 1 when it moves up to the highest position or down to the lowest position. That is to say, when the inner vertical tube 1 is in the initial position, the top outer circumference of the upper limit wheel 3 of the inner vertical tube 1 can form an upper limit due to the top edge of the waist-shaped groove 5. When the inner vertical tube 1 descends to the lowest position, the bottom edge of the lower limit wheel 4 abuts against the bottom edge of the waist-shaped groove 5. Thus, the bottom edge of the waist-shaped groove 5 limits the inner vertical tube 1, avoiding the risk of the vertical tube exceeding the predetermined stroke range, ensuring the accuracy and safety of material transmission, and also protecting the equipment from unnecessary damage.

[0027] The mounting plate is formed into a roughly square plate structure. The mounting plate is vertically fixed to the outer circumferential surface of the outer pipe 2. The fixing method can be welding. One end of the mounting plate near the outer pipe 2 is set as the plate proximal end 6, and the other end is set as the plate distal end 7.

[0028] Because after the material conveying is completed, the residual material attached to the inner circumference of the inner vertical pipe 1 is prone to dripping onto the ground and causing unnecessary pollution to the factory area, we have also added a residual material receiving box 8 to collect the residual material attached to the inner circumference of the vertical pipe. It is formed into a roughly box-shaped structure, and its shape and specifications can be selected according to the usage requirements. A swing plate is fixed on the top of the swing plate, which is formed into a roughly square plate structure. The middle part of the swing plate is hinged to the plate near the end 6 of the mounting plate. One end of the swing plate near the outer vertical pipe 2 is set as the driving end 9, and the other end is set as the swing end 10. The top of the residual material receiving box 8 is fixed on the bottom surface of the swing end 10 of the swing plate. The driving end 9 of the swing plate is placed between the upper limit wheel 3 and the lower limit wheel 4, thereby driving the swing end 10 of the swing plate to swing and selectively driving the residual material receiving box 8 to swing directly below the inner vertical pipe 1 for residual material collection.

[0029] The top of the waste material receiving box 8 has an opening 11 facing the bottom of the inner pipe 1. The opening 11 is a square opening, so that the waste material attached to the inner wall of the inner pipe 1 can drip into the waste material receiving box 8.

[0030] An elastic element 12, which is a compression spring, is provided on the mounting plate. One end of the elastic element 12 is hinged to the far end 7 of the mounting plate, and the other end is hinged to the swing end 10 of the swing plate. This provides a boost to the swing of the swing plate. It should be noted that the elastic element 12 is installed at the end of the mounting plate parallel to the hinge point in the middle of the swing plate. In the horizontal state, the elastic element 12 is in a contracted state. That is to say, whether the swing end 10 of the swing plate moves from horizontal to upward or from horizontal to downward, the elastic element 12 will release its elastic potential energy. This causes the swing end 10 of the swing plate to swing from upward / downward to horizontal, and then quickly tilt downward / upward while the elastic element 12 releases its elastic potential energy. This provides a boost to the swing end 10 of the swing plate for a certain stroke.

[0031] When using the self-locking telescopic plumb bob described in Example 1:

[0032] When the inner vertical tube 1 descends to its lowest position, the bottom outer circumferential surface of the lower limit wheel 4 abuts against the bottom edge of the waist-shaped groove 5. At this time, the bottom end of the inner vertical tube 1 extends to the bottom end of the outer vertical tube 2. After the material conveying is completed, the inner vertical tube 1 rises to its highest position. At this time, the top outer circumferential surface of the upper limit wheel 3 abuts against the top edge of the waist-shaped groove 5, thereby achieving trajectory limitation of the inner vertical tube 1 in its stroke.

[0033] In addition, when the inner vertical tube 1 descends to the lowest position, the driving end 9 of the swing plate placed between the upper limit wheel 3 and the lower limit wheel 4 will swing because the upper limit wheel 3 will press it, causing the swing end 10 of the swing plate to swing. At the same time, the residual material receiving box 8 will also swing, causing the residual material receiving box 8 to swing to the side of the inner vertical tube 1. On the one hand, it does not hinder the material in the inner vertical tube 1 from falling by its own weight, and on the other hand, it can also make the residual material in the residual material receiving box 8 drip down to the bottom of the inner vertical tube 1 by its own weight, for example, drip into the tanker opening 13.

[0034] Furthermore, when the swing plate swings, the state of the elastic element 12 changes from the released state to the contracted state in the horizontal state, and then changes from the contracted state to the released state. During the transition from the contracted state to the released state, the release of the elastic potential energy of the elastic element 12 provides a certain degree of boost to the swing end 10 of the swing plate.

Claims

1. A self-locking telescopic vertical pipe, characterized in that: It includes an inner pendulum and an outer pendulum, with the inner pendulum concentrically arranged inside the outer pendulum; An upper limit wheel and a lower limit wheel are hinged to the outer circumferential surface of the inner plumb tube; A waist-shaped groove is vertically provided on the bottom outer circumference of the outer tube for the upper limit wheel and the lower limit wheel to move up and down, thereby limiting the stroke of the inner tube when it moves up to the highest position or down to the lowest position. The mounting plate is fixed to the outer circumferential surface of the outer plumb tube. One end of the mounting plate near the outer plumb tube is designated as the plate proximal end, and the other end is designated as the plate distal end. The waste material receiving box has a swing plate fixed on its top. The middle part of the swing plate is hinged to the near end of the mounting plate. One end of the swing plate near the outer vertical tube is set as the driving end and the other end is set as the swing end. The driving end of the swing plate is placed between the upper limit wheel and the lower limit wheel, thereby driving the swing end of the swing plate to swing and selectively driving the waste material receiving box to swing directly below the inner vertical tube for waste material collection.

2. The self-locking telescopic vertical pipe according to claim 1, characterized in that: An elastic element is provided on the mounting plate. One end of the elastic element is hinged to the far end of the mounting plate, and the other end is hinged to the swing end of the swing plate, thereby assisting the swing of the swing plate.

3. A self-locking telescopic vertical pipe according to claim 2, characterized in that: The elastic element is a compression spring.

4. A self-locking telescopic vertical pipe according to claim 1, characterized in that: The upper limit wheel and the lower limit wheel are hinged one above the other on the outer circumferential surface of the inner vertical tube.

5. A self-locking telescopic vertical pipe according to claim 1, characterized in that: The mounting plate is vertically fixed to the outer circumferential surface of the outer pipe.

6. A self-locking telescopic vertical pipe according to claim 1, characterized in that: The top of the waste material receiving box is fixed to the bottom surface of the swing end of the swing plate.

7. A self-locking telescopic vertical pipe according to claim 1, characterized in that: The top of the waste material receiving box has an opening facing the bottom of the inner pipe, so that the waste material adhering to the inner wall of the inner pipe can drip into the waste material receiving box.

Images