Wear-resistant limiting rubber expansion joint

Abstract

The utility model discloses a kind of wear-resistant limit rubber expansion joint, it is related to rubber expansion joint technical field, including mounting bracket, positive and negative screw rod and rubber conveying rubber sleeve, the sidewall between the mounting bracket is equipped with guide rod, and the outer wall of guide rod is equipped with moving collar, the inner wall of mounting bracket is provided with the synchronous movement mechanism for adjusting the spacing between the moving collar, the outer wall of the moving collar is equipped with mounting sleeve rod, and the rubber conveying rubber sleeve of mounting sleeve rod outer wall is equipped with the moving collar, the outer wall of the mounting sleeve rod is equipped with the limiting mechanism of the rubber conveying rubber sleeve position that position is clamped, the device has pull arc-shaped insertion rod to drive rutherford magnetic and insertion groove position separation, operator rotates knob to drive positive and negative screw rod rotation, so that positive and negative screw rod drives moving collar to move at guide rod position to both sides position, rubber conveying rubber sleeve stretch, this structure conveniently drives rubber conveying rubber sleeve to stretch to both sides, satisfy different spacing requirement.

Description

Technical Field

[0001] This utility model relates to the field of rubber expansion joint technology, specifically a wear-resistant limiting rubber expansion joint. Background Technology

[0002] With the continuous development of the mining pipeline industry, expansion joints are being used more and more widely. Traditional expansion joints are pipes with screw rods. During the process of transporting media, the flow velocity, size and other factors will generate huge pressure and impact forces on the pipeline in both the axial and circumferential directions. Expansion joints are used to compensate for the expansion and contraction of the pipeline caused by pressure and tension.

[0003] However, this invention discloses an anti-pull-out limiting rubber expansion joint, relating to the field of expansion joint technology. Specifically, it is an anti-pull-out limiting rubber expansion joint, comprising a horizontal plate, a connecting plate, and a ring. A round rod is inserted into the inside of the ring. A cavity block is installed on one side of the connecting plate, and a limiting spring is installed on one side of the cavity block. An adjusting plate is installed at one end of the limiting spring. This anti-pull-out limiting rubber expansion joint, through the setting of the fixing rod, the limiting block, and the guide rod, enables the anti-pull-out rubber expansion joint to achieve the effect of preventing pull-out. The round rod is positioned and slidable along the length direction of the ring and the round hole, and the guide rod is positioned along the length direction of the guide hole, which is convenient. The elastic tension of the limiting spring allows the limiting block to enter the interior of the limiting slot, facilitating limiting and achieving the function of preventing pull-out, thus improving practicality.

[0004] The anti-pull-out limiting rubber expansion joint has the following problems during use: when the rubber is stretched, the operator needs to adjust the position one by one in several positions, which is very inconvenient. In addition, the anti-drag structure is not clamped and fixed, which makes it easy for the tension to be in one position and easily penetrate the rubber sleeve. Utility Model Content

[0005] The purpose of this invention is to provide a wear-resistant limiting rubber expansion joint to solve the related problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant limiting rubber expansion joint, comprising a mounting frame, positive and negative lead screws, and a rubber conveying sleeve. A guide rod is installed between the side walls of the mounting frame, and a movable collar is sleeved on the outer wall of the guide rod. A synchronous moving mechanism for adjusting the distance between the movable collars is provided on the inner wall of the mounting frame. An mounting rod is installed on the outer wall of the movable collar, and a rubber conveying sleeve penetrating the movable collar is sleeved on the outer wall of the mounting rod. A limiting mechanism for positioning and clamping the position of the rubber conveying sleeve is sleeved on the outer wall of the mounting rod.

[0007] This technical solution provides a wear-resistant limiting rubber expansion joint. The synchronous movement mechanism includes positive and negative lead screws and a knob. The positive and negative lead screws, which pass through the moving collar, are installed inside the mounting frame through bearings. The outer wall of the positive and negative lead screws meshes with the inner wall of the moving collar. The knob inside the mounting frame is connected to one end of the positive and negative lead screws through bearings.

[0008] This technical solution provides a wear-resistant limiting rubber expansion joint, wherein the mounting bracket has a slot inside, the knob has an arc-shaped insert rod that passes through the slot, and the arc-shaped insert rod and the inner wall of the slot are equipped with rubidium magnets.

[0009] This technical solution provides a wear-resistant limiting rubber expansion joint. The limiting mechanism includes a positioning collar and a movable groove. The outer wall of the mounting sleeve is fitted with a positioning collar that presses the position of the rubber conveying sleeve, and the positioning collar has a movable groove inside. The outer wall of the mounting sleeve has multiple arc-shaped positioning grooves.

[0010] This technical solution provides a wear-resistant limiting rubber expansion joint, wherein an arc-shaped positioning block is installed inside the movable groove and inserted into the arc-shaped positioning groove, and a positioning rod that penetrates the positioning collar is installed on the outer wall of the arc-shaped positioning block.

[0011] This technical solution provides a wear-resistant limiting rubber expansion joint, wherein the outer wall of the positioning rod is fitted with a spring, and the side wall of the spring is connected to the inner wall of the movable groove.

[0012] This technical solution provides a wear-resistant limiting rubber expansion joint, wherein the outer wall of the movable collar is provided with multiple mounting grooves.

[0013] Compared with the prior art, this utility model provides a wear-resistant limiting rubber expansion joint, which has the following beneficial effects:

[0014] 1. This utility model uses an arc-shaped insert rod to separate the rubidium magnet from the slot. Then, the operator rotates the knob to rotate the positive and negative lead screws, which in turn move the moving collar to the sides at the guide rod position, thereby stretching the rubber conveying sleeve. This structure facilitates stretching the rubber conveying sleeve to the sides, thus meeting different spacing requirements.

[0015] 2. This utility model uses the positioning rod to pull the arc-shaped positioning block to separate from the position. At this time, the spring is compressed. Then, the positioning collar separates from the rubber conveying sleeve. Then, the rubber conveying sleeve is pulled through the mounting sleeve rod to separate the rubber conveying sleeve from the moving collar. This structure facilitates the removal and replacement of the rubber conveying sleeve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0017] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 3 For the present utility model Figure 1 A magnified structural diagram at point A;

[0019] Figure 4 For the present utility model Figure 1 A magnified structural diagram at point B;

[0020] Figure 5 This is a schematic diagram of the left-side cross-sectional structure of this utility model.

[0021] In the diagram: 1. Mounting bracket; 2. Guide rod; 3. Positive and negative lead screws; 4. Moving collar; 5. Rubber conveying sleeve; 6. Knob; 7. Slot; 8. Arc-shaped insert rod; 9. Rubber magnet; 10. Mounting sleeve rod; 11. Positioning collar; 12. Movable groove; 13. Positioning rod; 14. Spring; 15. Arc-shaped positioning block; 16. Arc-shaped positioning groove; 17. Mounting groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1, such as Figure 1-4 As shown, this utility model provides a technical solution: a wear-resistant limiting rubber expansion joint, including a mounting frame 1, positive and negative lead screws 3, and a rubber conveying sleeve 5. A guide rod 2 is installed between the side walls of the mounting frame 1, and a movable collar 4 is sleeved on the outer wall of the guide rod 2. A synchronous moving mechanism for adjusting the distance between the movable collars 4 is provided on the inner wall of the mounting frame 1. The synchronous moving mechanism includes positive and negative lead screws 3 and a knob 6. The positive and negative lead screws 3, which penetrate the movable collar 4, are mounted inside the mounting frame 1 via bearings, and the outer wall of the positive and negative lead screws 3 meshes with the inner wall of the movable collar 4. The mounting frame 1 is further equipped with a bearing... The knob 6, connected to one end of the positive and negative lead screw 3, has a slot 7 inside the mounting bracket 1. An arc-shaped insert 8 is installed inside the knob 6, passing through the slot 7. Rubidium magnets 9 are installed on the inner walls of the arc-shaped insert 8 and the slot 7. By pulling the arc-shaped insert 8, the rubidium magnets 9 are separated from the slot 7. Then, the operator rotates the knob 6 to rotate the positive and negative lead screw 3, thereby causing the positive and negative lead screw 3 to move the moving collar 4 to both sides at the guide rod 2 position. This causes the rubber conveying sleeve 5 to be stretched. This structure facilitates the stretching of the rubber conveying sleeve 5 to both sides, thus meeting different spacing requirements.

[0024] Example 2, as Figure 1-5 As shown, this utility model provides a technical solution: a wear-resistant limiting rubber expansion joint, including an installation rod 10 installed on the outer wall of a movable collar 4, and a rubber conveying sleeve 5 that penetrates the movable collar 4 on the outer wall of the installation rod 10. A limiting mechanism for positioning and clamping the rubber conveying sleeve 5 is also provided on the outer wall of the installation rod 10. The limiting mechanism includes a positioning collar 11 and a movable groove 12. The positioning collar 11, which presses against the position of the rubber conveying sleeve 5, is fitted on the outer wall of the installation rod 10, and the movable groove 12 is provided inside the positioning collar 11. Multiple arc-shaped positioning grooves 16 are provided on the outer wall of the installation rod 10, and the movable groove 12 contains insertion arc-shaped positioning grooves 16. The arc-shaped positioning block 15 is positioned, and a positioning rod 13 that passes through the positioning collar 11 is installed on the outer wall of the arc-shaped positioning block 15. A spring 14 is sleeved on the outer wall of the positioning rod 13, and the side wall of the spring 14 is connected to the inner wall of the movable groove 12. Multiple mounting grooves 17 are opened on the outer wall of the movable collar 4. By pulling the positioning rod 13, the arc-shaped positioning block 15 is separated from the arc-shaped positioning groove 16. At this time, the spring 14 is compressed. Then, the positioning collar 11 is separated from the rubber conveying sleeve 5. Then, the rubber conveying sleeve 5 is pulled through the mounting rod 10 to separate the rubber conveying sleeve 5 from the movable collar 4. This structure facilitates the removal and replacement of the rubber conveying sleeve 5.

[0025] Working principle: First, the operator pulls the arc-shaped insert rod 8 to separate the rubidium magnet 9 from the slot 7. Then, the operator rotates the knob 6 to rotate the positive and negative lead screw 3, which in turn moves the moving collar 4 to both sides at the guide rod 2, thus stretching the rubber conveying sleeve 5. This structure facilitates stretching the rubber conveying sleeve 5 to both sides to meet different spacing requirements. When it is necessary to pull the positioning rod 13 to separate the arc-shaped positioning block 15 from the arc-shaped positioning groove 16, the spring 14 is compressed. Then, the positioning collar 11 separates from the rubber conveying sleeve 5. Next, the rubber conveying sleeve 5 is pulled through the mounting sleeve rod 10 to separate the rubber conveying sleeve 5 from the moving collar 4. This structure facilitates the removal and replacement of the rubber conveying sleeve 5.

[0026] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A wear-resistant limiting rubber expansion joint, comprising a mounting bracket (1), positive and negative lead screws (3), and a rubber conveying sleeve (5), characterized in that: Guide rods (2) are installed between the side walls of the mounting frame (1), and a movable collar (4) is sleeved on the outer wall of the guide rod (2). A synchronous moving mechanism for adjusting the distance between the movable collars (4) is provided on the inner wall of the mounting frame (1). An installation rod (10) is installed on the outer wall of the movable collar (4), and a rubber conveying sleeve (5) that penetrates the movable collar (4) is sleeved on the outer wall of the installation rod (10). A limiting mechanism for positioning and clamping the position of the rubber conveying sleeve (5) is sleeved on the outer wall of the installation rod (10).

2. The wear-resistant limiting rubber expansion joint according to claim 1, characterized in that: The synchronous moving mechanism includes a positive and negative lead screw (3) and a knob (6). The positive and negative lead screw (3) that passes through the moving collar (4) is installed inside the mounting frame (1) through a bearing. The outer wall of the positive and negative lead screw (3) meshes with the inner wall of the moving collar (4). The knob (6) is installed inside the mounting frame (1) through a bearing. One end of the knob (6) is connected to one end of the positive and negative lead screw (3).

3. The wear-resistant limiting rubber expansion joint according to claim 2, characterized in that: The mounting bracket (1) has a slot (7) inside, and the knob (6) has an arc-shaped insert (8) that passes through the slot (7) inside. The arc-shaped insert (8) and the inner wall of the slot (7) are equipped with rubidium magnets (9).

4. The wear-resistant limiting rubber expansion joint according to claim 1, characterized in that: The limiting mechanism includes a positioning collar (11) and a movable groove (12). The outer wall of the mounting rod (10) is fitted with a positioning collar (11) that presses the rubber conveying sleeve (5) and the inside of the positioning collar (11) is provided with a movable groove (12). The outer wall of the mounting rod (10) is provided with multiple arc-shaped positioning grooves (16).

5. The wear-resistant limiting rubber expansion joint according to claim 4, characterized in that: The movable groove (12) is equipped with an arc-shaped positioning block (15) that is inserted into the arc-shaped positioning groove (16), and the outer wall of the arc-shaped positioning block (15) is equipped with a positioning rod (13) that passes through the positioning collar (11).

6. The wear-resistant limiting rubber expansion joint according to claim 5, characterized in that: The outer wall of the positioning rod (13) is fitted with a spring (14), and the side wall of the spring (14) is connected to the inner wall of the movable groove (12).

7. The wear-resistant limiting rubber expansion joint according to claim 1, characterized in that: The outer wall of the movable collar (4) is provided with multiple mounting grooves (17).

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