Intelligent stretcher

Abstract

The utility model discloses a kind of intelligent stretchers, it is related to the technical field of stretchers, including bottom ring and support ring, the support ring is fixedly sleeved in the upside of bottom ring, the upside of support ring is equipped with first recess, the inside of first recess is slidably provided with floating ring, the upper surface of floating ring is equipped with second recess, the inside of second recess is equipped with stretching ring, the lower end inner wall of stretching ring is equipped with internal thread, one side of support ring is provided with hydraulic pipe joint, the groove bottom of first recess and the position corresponding with hydraulic pipe joint are equipped with oil inlet hole, the upper surface of support ring is provided with annular cover, the upper surface of support ring is provided with the limiting mechanism that limit annular cover moves relative to support ring. The utility model can save time and labor to disassemble and assemble the cover of stretcher, it is convenient to maintain inside the stretcher, and without the aid of tool, can greatly improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tensioner technology, specifically to an intelligent tensioner. Background Technology

[0002] The intelligent tensioner is a device that uses hydraulic drive to achieve precise pre-tightening of bolts. It integrates precision components such as hydraulic cylinders, seals, and pressure sensors. After long-term use, the top cover needs to be opened to clean the internal components, replace the seals, or calibrate the pressure.

[0003] The top cover and cylinder of existing intelligent tensioners are mostly connected by bolts. Disassembly and assembly require special tools, which is cumbersome. Furthermore, the bolts are prone to disassembly due to oil and rust, making them difficult to remove. These problems result in time-consuming and labor-intensive internal maintenance of existing intelligent tensioners, which seriously affects the overall operating efficiency. Utility Model Content

[0004] In view of the problems existing in the above-mentioned intelligent stretchers, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide an intelligent stretcher that solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A smart tensioner includes a bottom ring and a support ring. The support ring is fixedly sleeved on the upper side of the bottom ring. A first groove is formed on the upper side of the support ring, and a floating ring is slidably disposed inside the first groove. A second groove is formed on the upper surface of the floating ring, and a tension ring is sleeved inside the second groove. An internal thread is formed on the inner wall of the lower end of the tension ring. A hydraulic pipe joint is provided on one side of the support ring. An oil inlet is formed at the bottom of the first groove and at a position corresponding to the hydraulic pipe joint. An annular cover is abutted against the upper surface of the support ring, and a limiting mechanism is provided on the upper surface of the support ring to restrict the movement of the annular cover relative to the support ring.

[0007] Preferably, the limiting mechanism includes an L-shaped rod and a plug rod. Multiple plug rods are arranged in a circular array around the center of the support ring and fixedly disposed on the upper surface of the support ring. The surface of the annular cover has insertion holes at positions corresponding to the multiple plug rods. The upper end of each plug rod is inserted into the corresponding insertion hole. A through hole is formed in the rod wall of each plug rod. A rotating ring is concentrically rotatable on the upper surface of the annular cover. An L-shaped rod is fixedly disposed on the outer wall of the rotating ring at positions corresponding to the multiple plug rods. One end of each L-shaped rod is inserted into the corresponding through hole.

[0008] Preferably, the upper surface of the annular cover is provided with multiple arc-shaped grooves, a slider is slidably disposed inside the arc-shaped groove, one side of the slider is fixedly connected to the outer wall of the rotating ring, an arc-shaped rod is fixedly disposed on the inner wall of the arc-shaped groove, and the slider is movably sleeved with the rod wall of the arc-shaped rod.

[0009] Preferably, a spring is movably sleeved on the wall of the arc-shaped rod, one end of the spring is fixedly connected to the side of the slider away from the corresponding L-shaped rod, and the other end of the spring is fixedly connected to the inner wall of the arc-shaped groove.

[0010] Preferably, both the arc-shaped groove and the slider have rectangular cross-sections, and both sides of the slider abut against the inner wall of the arc-shaped groove.

[0011] Preferably, both the through hole and the end of the L-shaped rod near the through hole are arc-shaped, and both the L-shaped rod and the through hole are concentric with the support ring.

[0012] Preferably, the front sidewall of the bottom ring has an operating port.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This invention utilizes a rotating ring. During this process, the slider overcomes the spring's elasticity and compresses the spring. The rotating ring drives multiple L-shaped rods to rotate, causing them to gradually leave their corresponding through holes. This releases the limiting position of the multiple rods, allowing the annular cover to be pulled out from the rods, thus accessing the interior of the support ring. This facilitates maintenance of the components inside the tensioner body. The process is convenient, time-saving, and labor-saving, requiring no tools and greatly improving maintenance efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the structure of an intelligent tensioner proposed in this utility model; Figure 2 for Figure 1 Internal structure diagram; Figure 3 for Figure 1 A magnified schematic diagram of part A in the middle section.

[0016] Explanation of reference numerals in the attached figures: 1. Bottom ring; 2. Support ring; 3. Floating ring; 4. Tension ring; 5. Hydraulic pipe fitting; 6. Rotary ring; 7. Slider; 8. Arc rod; 9. Spring; 10. Insert rod; 11. L-shaped rod; 12. Arc groove; 13. Oil inlet; 14. Operating port. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] This utility model discloses an intelligent stretcher.

[0019] Reference Figure 1-3 A smart tensioner includes a bottom ring 1 and a support ring 2. The support ring 2 is fixedly sleeved on the upper side of the bottom ring 1. An operating port 14 is provided on the front side wall of the bottom ring 1 to facilitate inserting a wrench to tighten a nut through the operating port 14. A first groove is provided on the upper side of the support ring 2. A floating ring 3 is slidably arranged inside the first groove. A second groove is provided on the upper surface of the floating ring 3. A tension ring 4 is sleeved inside the second groove. An internal thread is provided on the lower inner wall of the tension ring 4. A hydraulic pipe joint 5 is provided on one side of the support ring 2. An oil inlet hole 13 is provided at the bottom of the first groove and at a position corresponding to the hydraulic pipe joint 5. An annular cover is provided on the upper surface of the support ring 2. A limiting mechanism is provided on the upper surface of the support ring 2 to restrict the movement of the annular cover relative to the support ring 2.

[0020] Reference Figure 1-3 The limiting mechanism includes an L-shaped rod 11 and a plug rod 10. Multiple plug rods 10 are arranged in a circular array around the center of the support ring 2 and fixedly disposed on the upper surface of the support ring 2. Insertion holes are opened on the surface of the annular cover at positions corresponding to the multiple plug rods 10. The upper end of the plug rod 10 is inserted into the corresponding insertion hole. A through hole is opened on the rod wall of the plug rod 10. A rotating ring 6 is concentrically rotatably disposed on the upper surface of the annular cover. An L-shaped rod 11 is fixedly disposed on the outer wall of the rotating ring 6 at positions corresponding to the multiple plug rods 10. One end of the L-shaped rod 11 is inserted into the corresponding through hole. The through hole and the end of the L-shaped rod 11 near the through hole are both arc-shaped. The L-shaped rod 11 and the through hole are concentric with the support ring 2, so that the L-shaped rod 11 can smoothly rotate into the interior of the through hole.

[0021] Reference Figure 1-3 The upper surface of the annular cover is provided with multiple arc-shaped grooves 12. A slider 7 is slidably arranged inside the arc-shaped groove 12. One side of the slider 7 is fixedly connected to the outer wall of the rotating ring 6. An arc-shaped rod 8 is fixedly arranged on the inner wall of the arc-shaped groove 12. The slider 7 and the rod wall of the arc-shaped rod 8 are movably sleeved, so that the rotating ring 6 can rotate stably.

[0022] Reference Figure 1-3A spring 9 is movably sleeved on the wall of the arc-shaped rod 8. One end of the spring 9 is fixedly connected to the side of the slider 7 away from the corresponding L-shaped rod 11, and the other end of the spring 9 is fixedly connected to the inner wall of the arc-shaped groove 12 to facilitate the slider's reset. The cross-sections of the arc-shaped groove 12 and the slider 7 are both rectangular. Both sides of the slider 7 abut against the inner wall of the arc-shaped groove 12, so that the slider 7 can slide stably in the arc-shaped groove 12.

[0023] In this invention, when maintenance of the tensioner's internal components is required, the rotating ring 6 is held and rotated to one side. The rotating ring 6 causes the slider 7 to slide along the arc-shaped rod 8 within the arc-shaped groove 12. The slider 7 compresses the spring 9, causing it to contract. Simultaneously, the rotating ring 6 drives multiple L-shaped rods 11 to rotate synchronously. Because the L-shaped rods 11 and the through holes are both arc-shaped and concentric, one end of the L-shaped rod 11 gradually disengages from the through hole of the insertion rod 10 until it completely leaves the through hole, releasing the restriction on the insertion rod 10. Then, the annular cover is pulled upwards to separate the insertion hole of the annular cover from the insertion rod 10, allowing the rod to be removed. Lower the annular cover to expose the floating ring 3, tension ring 4, and hydraulic components inside the support ring 2. Clean and replace the internal components through the exposed internal space of the support ring 2. After maintenance, align the insertion hole of the annular cover with the multiple insertion rods 10 on the support ring 2, press the annular cover down to insert the insertion rods 10 into the insertion hole, then release the rotating ring 6, the retracted spring 9 returns to its original position, and pushes the slider 7 to slide in the opposite direction along the arc-shaped rod 8. The slider 7 drives the rotating ring 6 and multiple L-shaped rods 11 to rotate. One end of the L-shaped rod 11 automatically screws into the through hole of the insertion rod 10, completing the locking of the annular cover.

[0024] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A smart tensioner, comprising a bottom ring (1) and a support ring (2), characterized in that, The support ring (2) is fixedly sleeved on the upper side of the bottom ring (1). The upper side of the support ring (2) is provided with a first groove. A floating ring (3) is slidably arranged inside the first groove. The upper surface of the floating ring (3) is provided with a second groove. A tension ring (4) is sleeved inside the second groove. The lower end of the tension ring (4) is provided with an internal thread. A hydraulic pipe joint (5) is provided on one side of the support ring (2). An oil inlet hole (13) is provided at the bottom of the first groove and at the position corresponding to the hydraulic pipe joint (5). An annular cover is provided on the upper surface of the support ring (2). A limiting mechanism is provided on the upper surface of the support ring (2) to restrict the movement of the annular cover relative to the support ring (2).

2. The intelligent stretcher according to claim 1, characterized in that, The limiting mechanism includes an L-shaped rod (11) and a plug rod (10). Multiple plug rods (10) are arranged in a ring array around the center of the support ring (2) and fixedly disposed on the upper surface of the support ring (2). The surface of the annular cover and the position corresponding to the multiple plug rods (10) are provided with insertion holes. The upper end of the plug rod (10) is inserted into the corresponding insertion hole. The rod wall of the plug rod (10) is provided with a through hole. The upper surface of the annular cover is concentrically rotated with a rotating ring (6). The outer wall of the rotating ring (6) and the position corresponding to the multiple plug rods (10) are fixedly provided with an L-shaped rod (11). One end of the L-shaped rod (11) is inserted into the corresponding through hole.

3. The intelligent stretcher according to claim 2, characterized in that, The upper surface of the annular cover is provided with multiple arc-shaped grooves (12). A slider (7) is slidably arranged inside the arc-shaped groove (12). One side of the slider (7) is fixedly connected to the outer wall of the rotating ring (6). An arc-shaped rod (8) is fixedly arranged on the inner wall of the arc-shaped groove (12). The slider (7) and the rod wall of the arc-shaped rod (8) are movably sleeved.

4. The intelligent stretcher according to claim 3, characterized in that, The arc-shaped rod (8) has a spring (9) movably sleeved on its wall. One end of the spring (9) is fixedly connected to the side of the slider (7) away from the corresponding L-shaped rod (11), and the other end of the spring (9) is fixedly connected to the inner wall of the arc-shaped groove (12).

5. The intelligent stretcher according to claim 3, characterized in that, The cross-sections of the arc groove (12) and the slider (7) are both rectangular, and both sides of the slider (7) abut against the inner wall of the arc groove (12).

6. The intelligent stretcher according to claim 2, characterized in that, The through hole and the L-shaped rod (11) are both arc-shaped at the end near the through hole, and the L-shaped rod (11) and the through hole are concentric with the support ring (2).

7. The intelligent tensioner according to claim 1, characterized in that, The bottom ring (1) has an operating port (14) on its front side wall.

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