Novel reinforced double-layer straight pipe

Abstract

The utility model discloses a novel reinforced double-layer straight pipe, which belongs to the technical field of double-layer straight pipes, and comprises a straight pipe body, the straight pipe body comprises an inner pipe and an outer pipe which are integrally formed, and the outer side of the outer pipe is provided with a sliding hole; the number of the abrasion-resistant sleeves is two, the two abrasion-resistant sleeves are movably connected to the two ends of the outer pipe in an inserted mode respectively, and clamping grooves are formed in the tops and the bottoms of the abrasion-resistant sleeves; the clamping mechanism is used for fixing the wear-resistant sleeve, the clamping mechanism comprises a sliding barrel, two inclined plates and two clamping plates, the inclined plates are fixedly connected to one side of the sliding barrel, inclined grooves are formed in one sides of the clamping plates, the inclined plates are connected into the corresponding inclined grooves in a sliding mode, and the clamping plates are connected into the corresponding sliding holes in a sliding mode. The wear-resistant sleeve of the double-layer straight pipe can be conveniently and quickly mounted and dismounted through the arranged clamping mechanism, so that the wear-resistant sleeve can be conveniently replaced after being damaged, and the use efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-layer straight pipes, in particular to a new reinforced double-layer straight pipe. Background Art

[0002] Pipeline transportation is widely used in various industries, such as construction, petroleum, mining, coal and other industries. The straight pipe part is the most important component in the pipeline transportation system. Existing straight pipe transportation pipelines can generally be divided into single-layer pipes and double-layer pipes, and their materials generally include cast iron, alloy steel, carbon steel, non-ferrous metals and plastics. The existing powder transportation pipeline system is generally composed of curved pipes, straight pipes or curved straight pipes. When the powder materials it transports, such as concrete, tailings, coal ash, grain, etc., flow in the pipeline, their flow direction will suddenly change when passing through the turning position. At the same time, there is generally a large pressure in the pipeline. Under the action of centrifugal force, the powder will flow close to one side of the pipeline, so the entire pipeline system has serious eccentric wear.

[0003] The patent document with publication number CN214500441U discloses a new reinforced double-layer straight pipe, including a straight pipe and a first flange, and a first wear-resistant sleeve arranged at the inlet end of the straight pipe and a second wear-resistant sleeve arranged at the outlet end of the straight pipe, the first wear-resistant sleeve is provided with a first flange, a tapered sleeve and a tapered outer tube are provided between the inlet end of the straight pipe and the first wear-resistant sleeve, the pipe diameter of the inlet end of the tapered sleeve is equal to the pipe diameter of the outlet end and the wall thickness A1 of the inlet end of the tapered sleeve is greater than the wall thickness A2 of the outlet end, and the straight pipe includes a straight outer tube and a straight inner tube.

[0004] In the above technical solution, the wear-resistant sleeve is not convenient to disassemble, making it difficult to replace after wear; therefore, we propose a new reinforced double-layer straight pipe to solve this problem. Utility Model Content

[0005] The purpose of the utility model is to provide a new reinforced double-layer straight pipe to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A new reinforced double-layer straight pipe, comprising:

[0008] A straight tube body, the straight tube body comprising an inner tube and an outer tube formed in one piece, and a sliding hole is provided on the outer side of the outer tube;

[0009] Wear-resistant sleeves, the number of which is set to two, the two wear-resistant sleeves are movably plugged into the two ends of the outer tube respectively, and the top and bottom of the wear-resistant sleeves are provided with card slots;

[0010] A clamping mechanism is used to fix the wear-resistant sleeve, and the clamping mechanism includes a slide cylinder, two inclined plates and two clamping plates. The inclined plate is fixedly connected to one side of the slide cylinder, and an inclined groove is provided on one side of the clamping plate. The inclined plate is slidably connected in the corresponding inclined groove, and the clamping plate is slidably connected in the corresponding slide hole, and the clamping plate is movably clamped in the corresponding clamping groove. The clamping mechanism is arranged in two groups.

[0011] Preferably, the clamping mechanism also includes a positioning plate, vertical holes are provided at the top and bottom of the slide cylinder, the positioning plate is slidably connected in the vertical hole, and a positioning groove is provided on the outside of the outer tube, and the positioning plate is movably clamped in the positioning groove.

[0012] Preferably, a through hole is opened on the side wall of the vertical hole, a side plate is fixedly installed on one side of the positioning plate, the side plate is slidably connected in the corresponding through hole, a compression spring is fixedly connected to the outer side of the side plate, the other end of the compression spring is fixedly connected to the inner wall of the through hole, and a pull plate is fixedly installed on the outer side of the positioning plate.

[0013] Preferably, a limiting groove is provided on the side wall of the sliding hole, a limiting plate is fixedly installed on one side of the clamping plate, the limiting plate is slidably connected in the limiting groove, and a connecting spring is fixedly connected to the outer side of the limiting plate, and the other end of the connecting spring is fixedly connected to the inner wall of the corresponding limiting groove.

[0014] Preferably, a mounting flange is fixedly mounted on the outer side of the wear-resistant sleeve.

[0015] Preferably, a guide plate is fixedly mounted on the outer side of the outer tube, a guide groove is provided on the inner wall of the slide cylinder, and the guide plate is slidably connected in the corresponding guide groove.

[0016] Preferably, the two wear-resistant sleeves are movably abutted against two ends of the inner tube respectively.

[0017] In the utility model, the new reinforced double-layer straight tube is described, by pulling the pull plate, the positioning plate is disengaged from the positioning groove, the fixation of the slide tube is released, and then the slide tube is pushed to move horizontally, and the cooperation between the inclined plate and the inclined groove drives the clamping plate to move outward, and drives the clamping plate to disengage from the clamping groove, and the fixation of the wear-resistant sleeve is released, so that it is convenient to move the wear-resistant sleeve horizontally to dismantle it;

[0018] In the utility model, the new reinforced double-layer straight tube is inserted into one end of the outer tube, and then the slide tube is pushed in the reverse direction to drive the card plate to move inward, so that the card plate is clamped into the card slot to fix the wear-resistant sleeve, and then the pull plate is released, so that the positioning plate moves in the reverse direction under the elastic force of the compression spring, so that the positioning plate is clamped into the positioning slot again, and the lateral movement of the slide tube is locked, thereby improving the installation stability of the wear-resistant sleeve;

[0019] The utility model has a reasonable structural design, and the provided clamping mechanism facilitates the quick installation and disassembly of the wear-resistant sleeve of the double-layer straight pipe, thereby facilitating the replacement of the wear-resistant sleeve after it is damaged, thereby improving the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a new reinforced double-layer straight pipe proposed by the utility model;

[0021] Figure 2 This is a schematic cross-sectional structure diagram of a new reinforced double-layer straight pipe proposed by the utility model;

[0022] Figure 3 for Figure 2 A partial enlarged view of part A;

[0023] Figure 4 for Figure 2 A partial enlarged view of part B.

[0024] In the figure: 1, straight pipe body; 101, inner pipe; 102, outer pipe; 2, wear-resistant sleeve; 3, mounting flange; 4, slide cylinder; 5, clamping plate; 6, inclined plate; 7, guide plate; 8, limit plate; 9, connecting spring; 10, positioning plate; 11, side plate; 12, compression spring; 13, pull plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Reference Figure 1-4 , a new reinforced double-layer straight pipe, comprising:

[0027] The straight tube body 1 comprises an inner tube 101 and an outer tube 102 which are integrally formed, and a sliding hole is provided on the outer side of the outer tube 102;

[0028] Wear-resistant sleeves 2, the number of which is set to two, the two wear-resistant sleeves 2 are movably plugged into the two ends of the outer tube 102, and the top and bottom of the wear-resistant sleeves 2 are both provided with card slots;

[0029] The clamping mechanism is used to fix the wear-resistant sleeve 2. The clamping mechanism includes a slide 4, two inclined plates 6 and two clamping plates 5. The inclined plate 6 is fixedly connected to one side of the slide 4, and an inclined groove is provided on one side of the clamping plate 5. The inclined plate 6 is slidably connected in the corresponding inclined groove, the clamping plate 5 is slidably connected in the corresponding sliding hole, and the clamping plate 5 is movably clamped in the corresponding clamping groove. The clamping mechanism is arranged in two groups.

[0030] In this embodiment, the clamping mechanism also includes a positioning plate 10. Vertical holes are provided at the top and bottom of the slide 4. The positioning plate 10 is slidably connected in the vertical hole, and a positioning groove is provided on the outer side of the outer tube 102. The positioning plate 10 is movably clamped in the positioning groove, thereby locking the movement of the slide 4. A guide plate 7 is fixedly installed on the outer side of the outer tube 102, and a guide groove is provided on the inner wall of the slide 4. The guide plate 7 is slidably connected in the corresponding guide groove to guide the slide 4.

[0031] In this embodiment, a through hole is opened on the side wall of the vertical hole, and a side plate 11 is fixedly installed on one side of the positioning plate 10. The side plate 11 is slidably connected in the corresponding through hole. A compression spring 12 is fixedly connected to the outer side of the side plate 11, and the other end of the compression spring 12 is fixedly connected to the inner wall of the through hole. A pull plate 13 is fixedly installed on the outer side of the positioning plate 10.

[0032] In this embodiment, a limiting groove is opened on the side wall of the sliding hole, and a limiting plate 8 is fixedly installed on one side of the clamping plate 5. The limiting plate 8 is slidably connected in the limiting groove, and a connecting spring 9 is fixedly connected to the outer side of the limiting plate 8. The other end of the connecting spring 9 is fixedly connected to the inner wall of the corresponding limiting groove, thereby realizing the guiding and resetting work of the clamping plate 5.

[0033] In this embodiment, a mounting flange 3 is fixedly mounted on the outer side of the wear-resistant sleeve 2 to facilitate the connection between the wear-resistant sleeve 2 and other pipelines.

[0034] In this embodiment, the two wear-resistant sleeves 2 are movably abutted against the two ends of the inner tube 101, thereby enhancing the connection sealing.

[0035] In this embodiment, when in use, the positioning plate 10 is disengaged from the positioning groove by pulling the pull plate 13, thereby releasing the fixation of the slide cylinder 4, and then pushing the slide cylinder 4 to move laterally, and driving the inclined plate 6 to cooperate with the inclined groove to drive the clamping plate 5 to move outward, and drive the clamping plate 5 to disengage from the clamping groove, thereby releasing the fixation of the wear-resistant sleeve 2, thereby facilitating the lateral movement of the wear-resistant sleeve 2 for disassembly;

[0036] By inserting the wear-resistant sleeve 2 into one end of the outer tube 102, and then pushing the slide 4 in the reverse direction to drive the card plate 5 to move inward, the card plate 5 is inserted into the card slot to fix the wear-resistant sleeve 2, and then the pull plate 13 is released, so that the positioning plate 10 moves in the reverse direction under the elastic force of the compression spring 12, so that the positioning plate 10 is re-inserted into the positioning slot, and the lateral movement of the slide 4 is locked, thereby improving the installation stability of the wear-resistant sleeve 2.

[0037] The above is a detailed introduction to a new reinforced double-layer straight pipe provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A new reinforced double-layer straight pipe, characterized in that: include: A straight tube body (1), the straight tube body (1) comprising an inner tube (101) and an outer tube (102) formed in one piece, and a sliding hole is provided on the outer side of the outer tube (102); The number of wear-resistant sleeves (2) is set to two, and the two wear-resistant sleeves (2) are respectively movably plugged into the two ends of the outer tube (102), and the top and bottom of the wear-resistant sleeves (2) are both provided with card slots; A clamping mechanism is used to fix the wear-resistant sleeve (2), the clamping mechanism comprises a slide cylinder (4), two inclined plates (6) and two clamping plates (5), the inclined plate (6) is fixedly connected to one side of the slide cylinder (4), and one side of the clamping plate (5) is provided with an inclined groove, the inclined plate (6) is slidably connected in the corresponding inclined groove, the clamping plate (5) is slidably connected in the corresponding slide hole, and the clamping plate (5) is movably clamped in the corresponding clamping groove, and the clamping mechanism is arranged in two groups.

2. A new reinforced double-layer straight pipe according to claim 1, characterized in that: The clamping mechanism also includes a positioning plate (10), the top and bottom of the slide cylinder (4) are both provided with vertical holes, the positioning plate (10) is slidably connected in the vertical holes, and the outer side of the outer tube (102) is provided with a positioning groove, and the positioning plate (10) is movably clamped in the positioning groove.

3. A new reinforced double-layer straight pipe according to claim 2, characterized in that: A through hole is provided on the side wall of the vertical hole, a side plate (11) is fixedly installed on one side of the positioning plate (10), the side plate (11) is slidably connected in the corresponding through hole, a compression spring (12) is fixedly connected to the outer side of the side plate (11), the other end of the compression spring (12) is fixedly connected to the inner wall of the through hole, and a pull plate (13) is fixedly installed on the outer side of the positioning plate (10).

4. A new reinforced double-layer straight pipe according to claim 1, characterized in that: A limiting groove is provided on the side wall of the sliding hole, a limiting plate (8) is fixedly mounted on one side of the clamping plate (5), the limiting plate (8) is slidably connected in the limiting groove, and a connecting spring (9) is fixedly connected to the outer side of the limiting plate (8), the other end of the connecting spring (9) is fixedly connected to the inner wall of the corresponding limiting groove.

5. A new reinforced double-layer straight pipe according to claim 1, characterized in that: A mounting flange (3) is fixedly mounted on the outer side of the wear-resistant sleeve (2).

6. A new reinforced double-layer straight pipe according to claim 1, characterized in that: A guide plate (7) is fixedly mounted on the outer side of the outer tube (102), a guide groove is provided on the inner wall of the slide cylinder (4), and the guide plate (7) is slidably connected in the corresponding guide groove.

7. A new reinforced double-layer straight pipe according to claim 1, characterized in that: The two wear-resistant sleeves (2) are movably abutted against the two ends of the inner tube (101) respectively.

Images