Tension spring protective sleeve with adjusting structure

Abstract

The utility model relates to the technical field of tension spring protection, and discloses a tension spring protective sleeve with an adjusting structure, which comprises a protective sleeve, a telescopic cylinder penetrates through the inside of the protective sleeve in a sliding manner, an extension spring is arranged inside the protective sleeve, one end of the extension spring is fixedly connected with the inner wall of the protective sleeve, and the other end of the extension spring is fixedly connected with the adjusting structure. The other end of the extension spring is fixedly connected with the outer wall of the end of the telescopic cylinder, an adjusting mechanism is arranged in the protective sleeve, a reset mechanism is arranged on the telescopic cylinder, and the adjusting mechanism comprises a fixing block. According to the tension spring protective sleeve with the adjusting structure, in the rightward movement process of a limiting block in the adjusting mechanism, an arc-shaped face is extruded by the edges of limiting holes, the limiting block can drive a sleeve plate to rotate so that limiting can be relieved, the limiting block can be conveniently clamped into the different limiting holes, and the distance between the protective sleeve and a telescopic cylinder can be adjusted; and the tension springs with different lengths can be protected conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of tension spring protection, in particular to a tension spring protection sleeve with an adjustment structure. Background Art

[0002] Extension springs are spiral springs that bear axial tension. Extension springs are generally made of round cross-section materials. When not bearing load, the coils of the extension spring are generally tight and there is no gap between them. Extension springs are widely used in medical respiratory equipment, shock absorption, pump springs, mechanical and electronic protective hardware, fluid control valves, mechanical aerospace components, actuators, switchgear machines, instruments and other equipment.

[0003] During the use of the tension spring, a protective cover is required to perform dust-proof treatment on the inside to prevent dust from entering the inside and affecting subsequent use. The length of the existing protective cover is fixed and the length cannot be adjusted. When protection is required for tension springs of different lengths, different protective covers are required, which is inconvenient to use. In view of this, a tension spring protective cover with an adjustment structure is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a tension spring protective cover with an adjustment structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tension spring protective cover with an adjustment structure, comprising a protective cover, a telescopic tube slidingly penetrated inside the protective cover, a tension spring arranged inside the protective cover, one end of the tension spring fixedly connected to the inner wall of the protective cover, and the other end of the tension spring fixedly connected to the outer wall of the end of the telescopic tube, an adjustment mechanism arranged inside the protective cover, a reset mechanism arranged on the telescopic tube, and the adjustment mechanism comprising:

[0006] A fixed block, the fixed block being fixedly mounted on the outer wall of the end of the telescopic cylinder;

[0007] A rotating rod, the rotating rod being rotatably connected to the inner wall of the fixed block;

[0008] The sleeve plate is fixedly mounted on the outer wall of the rotating rod, and a limiting block is fixedly mounted on the outer wall of the sleeve plate, and one side of the limiting block is arranged in an arc shape.

[0009] Preferably, a torsion spring is sleeved on the outer wall of the rotating rod, one end of the torsion spring is fixedly connected to the outer wall of the rotating rod, and the other end of the torsion spring is fixedly connected to the inner wall of the fixing block.

[0010] Preferably, the protective sleeve is provided with limiting holes, the limiting holes are distributed in an array on the protective sleeve, and limiting blocks are clamped inside the limiting holes.

[0011] Preferably, the reset mechanism includes a pull rod, which slides through the interior of the telescopic tube, and a pull ring is fixedly installed on the end of the pull rod. A load-bearing spring is sleeved on the outer wall of the pull rod, one end of the load-bearing spring is fixedly connected to the outer wall of the telescopic tube, and the other end of the load-bearing spring is fixedly connected to the outer wall of the pull rod.

[0012] Preferably, an extrusion rod is fixedly mounted on the bottom wall of the sleeve plate, and the extrusion rod is arranged in an inclined shape.

[0013] Preferably, a collar is fixedly mounted on the end of the pull rod, and the collar is sleeved on the outside of the extrusion rod.

[0014] Compared with the prior art, the utility model provides a tension spring protective cover with an adjustment structure, which has the following beneficial effects:

[0015] 1. The tension spring protective cover with an adjustment structure has an arc surface that is squeezed by the edge of the limiting hole during the rightward movement of the limiting block in the adjustment mechanism, so that the limiting block can drive the sleeve plate to rotate so that the limit is released, which is convenient for the limiting block to be clamped inside different limiting holes, and the distance between the protective cover and the telescopic cylinder can be adjusted, so as to protect tension springs of different lengths.

[0016] 2. The tension spring protective cover with an adjustment structure drives the end ring to move to the right through the pull rod in the reset mechanism to squeeze the outer wall of the extrusion rod, so that the extrusion rod can drive the limit block on the outer wall of the sleeve plate to flip downward so that the limit is released, and the telescopic tube can move toward the inside of the protective cover to reset, which is convenient for adjustment again. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall front view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure in the middle;

[0020] Figure 4 For this utility model Figure 2 A magnified schematic diagram of structure B in the middle.

[0021] In the figure: 1. Protective cover; 2. Telescopic cylinder; 3. Tension spring; 4. Adjustment mechanism; 41. Fixed block; 42. Rotating rod; 43. Torsion spring; 44. Sleeve plate; 45. Limit block; 46. Limit hole; 5. Reset mechanism; 51. Pull rod; 52. Load-bearing spring; 53. Pull ring; 54. Sleeve ring; 55. Extrusion rod. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a tension spring protective cover with an adjustment structure, comprising a protective cover 1, a telescopic tube 2 slidingly penetrated inside the protective cover 1, protection is performed by placing the tension spring inside the protective cover 1 and the telescopic tube 2, and the length can be adjusted by pulling the protective cover 1 and the telescopic tube 2 in two directions respectively, a tension spring 3 is arranged inside the protective cover 1, one end of the tension spring 3 is fixedly connected to the inner wall of the protective cover 1, and the other end of the tension spring 3 is fixedly connected to the outer wall of the end of the telescopic tube 2, the elastic force of the tension spring 3 can make the telescopic tube 2 move toward the inside of the protective cover 1 for reset, so as to facilitate readjustment, an adjustment mechanism 4 is arranged inside the protective cover 1, and a reset mechanism 5 is arranged on the telescopic tube 2.

[0023] In this embodiment, an adjustment mechanism 4 is provided inside the protective sleeve 1. When the limit block 45 in the adjustment mechanism 4 moves to the right, the arc surface is squeezed by the edge of the limit hole 46, so that the limit block 45 can drive the sleeve plate 44 to rotate so that the limit is released, which makes it easier for the limit block 45 to be clamped in different limit holes 46, so that the distance between the protective sleeve 1 and the telescopic tube 2 can be adjusted, which is convenient for protecting tension springs of different lengths.

[0024] In this embodiment, a reset mechanism 5 is provided on the telescopic cylinder 2. The pull rod 51 in the reset mechanism 5 drives the end ring 54 to move to the right to squeeze the outer wall of the extrusion rod 55. The extrusion rod 55 can drive the limit block 45 on the outer wall of the sleeve plate 44 to flip downward so that the limit is released, and the telescopic cylinder 2 can move toward the inside of the protective sleeve 1 to reset, which is convenient for adjustment again.

[0025] The above-mentioned adjustment mechanism 4 includes a fixing block 41, which is fixedly mounted on the outer wall of the end of the telescopic cylinder 2. A rotating rod 42 is rotatably connected to the inner wall of the fixing block 41. A torsion spring 43 is sleeved on the outer wall of the rotating rod 42. One end of the torsion spring 43 is fixedly connected to the outer wall of the rotating rod 42, and the other end of the torsion spring 43 is fixedly connected to the inner wall of the fixing block 41. The elastic force of the torsion spring 43 can make the sleeve plate 44 snap into the inside of the next limiting hole 46, so that the position between the protective sleeve 1 and the telescopic cylinder 2 is adjusted. The setting is clamped to complete the adjustment, a sleeve plate 44 is fixedly sleeved on the outer wall of the rotating rod 42, and a limiting block 45 is fixedly installed on the outer wall of the sleeve plate 44. One side of the limiting block 45 is set to an arc shape. The arc surface is squeezed during the movement of the limiting block 45, so that the limiting block 45 can drive the sleeve plate 44 to rotate so that the limit is released, which is convenient for adjustment. A limiting hole 46 is opened on the protective sleeve 1, and the limiting holes 46 are distributed in an array on the protective sleeve 1. The limiting block 45 is clamped inside the limiting hole 46.

[0026] The above-mentioned reset mechanism 5 includes a pull rod 51, which slides through the interior of the telescopic cylinder 2. A pull ring 53 is fixedly installed at the end of the pull rod 51, and the pull ring 53 can be pulled to drive the pull rod 51 to move to the right. A load-bearing spring 52 is sleeved on the outer wall of the pull rod 51, one end of the load-bearing spring 52 is fixedly connected to the outer wall of the telescopic cylinder 2, and the other end of the load-bearing spring 52 is fixedly connected to the outer wall of the pull rod 51. An extrusion rod 55 is fixedly installed on the bottom wall of the sleeve plate 44, and the extrusion rod 55 is arranged in an inclined shape. A sleeve ring 54 is fixedly installed at the end of the pull rod 51, and the sleeve ring 54 is sleeved on the outside of the extrusion rod 55. The end sleeve ring 54 is driven by the pull rod 51 to move to the right to squeeze the outer wall of the extrusion rod 55, so that the extrusion rod 55 can drive the limit block 45 on the outer wall of the sleeve plate 44 to flip downward so that the limit is released.

[0027] In this embodiment, a tension spring is placed inside the protective sleeve 1 and the telescopic tube 2 for protection. When the tension spring is long and the protective sleeve 1 needs to be extended, the protective sleeve 1 and the telescopic tube 2 are pulled in two directions respectively, and then the sleeve plate 44 inside the fixed block 41 is driven to move to the right through the telescopic tube 2, and the limit block 45 is driven to move to the right through the sleeve plate 44. During the movement of the limit block 45 to the right, it is squeezed by the edge of the limit hole 46, and then squeezed by the arc surface of the limit block 45, so that the limit block 45 drives the sleeve plate 44 to rotate so that the limit is released, and then the middle length is extended through the back-to-back movement between the protective sleeve 1 and the telescopic tube 2. , and then the elastic force of the torsion spring 43 makes the sleeve plate 44 snap into the inside of the next limit hole 46, so that the position between the protective sleeve 1 and the telescopic tube 2 is snapped and adjusted. When the position between the protective sleeve 1 and the telescopic tube 2 needs to be readjusted, the pull ring 53 is pulled to drive the pull rod 51 to move to the right, and then the pull rod 51 drives the end sleeve ring 54 to move to the right to squeeze the outer wall of the extrusion rod 55, so that the extrusion rod 55 drives the limit block 45 on the outer wall of the sleeve plate 44 to flip downward so that the limit is released, and finally the elastic force of the tension spring 3 is used to make the telescopic tube 2 move toward the inside of the protective sleeve 1 to reset, so as to facilitate adjustment again.

[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A tension spring protective cover with an adjustment structure, comprising a protective cover (1), characterized in that: The protective sleeve (1) has a telescopic cylinder (2) slidingly penetrated therein, a tension spring (3) is arranged inside the protective sleeve (1), one end of the tension spring (3) is fixedly connected to the inner wall of the protective sleeve (1), and the other end of the tension spring (3) is fixedly connected to the outer wall of the end of the telescopic cylinder (2), an adjustment mechanism (4) is arranged inside the protective sleeve (1), and a reset mechanism (5) is arranged on the telescopic cylinder (2), and the adjustment mechanism (4) comprises: A fixed block (41), wherein the fixed block (41) is fixedly mounted on the outer wall of the end of the telescopic cylinder (2); A rotating rod (42), wherein the rotating rod (42) is rotatably connected to the inner wall of the fixed block (41); A sleeve plate (44) is fixedly mounted on the outer wall of the rotating rod (42), a limiting block (45) is fixedly mounted on the outer wall of the sleeve plate (44), and one side of the limiting block (45) is arranged in an arc shape.

2. The tension spring protective cover with an adjustment structure according to claim 1, characterized in that: A torsion spring (43) is sleeved on the outer wall of the rotating rod (42), one end of the torsion spring (43) is fixedly connected to the outer wall of the rotating rod (42), and the other end of the torsion spring (43) is fixedly connected to the inner wall of the fixed block (41).

3. The tension spring protective cover with an adjustment structure according to claim 2, characterized in that: The protective sleeve (1) is provided with limiting holes (46), the limiting holes (46) are distributed in an array on the protective sleeve (1), and the limiting blocks (45) are clamped inside the limiting holes (46).

4. The tension spring protective cover with an adjustment structure according to claim 1, characterized in that: The reset mechanism (5) includes a pull rod (51), the pull rod (51) slides through the interior of the telescopic tube (2), a pull ring (53) is fixedly installed on the end of the pull rod (51), a load-bearing spring (52) is sleeved on the outer wall of the pull rod (51), one end of the load-bearing spring (52) is fixedly connected to the outer wall of the telescopic tube (2), and the other end of the load-bearing spring (52) is fixedly connected to the outer wall of the pull rod (51).

5. The tension spring protective cover with an adjustment structure according to claim 4, characterized in that: An extrusion rod (55) is fixedly mounted on the bottom wall of the sleeve plate (44), and the extrusion rod (55) is arranged in an inclined shape.

6. The tension spring protective cover with an adjustment structure according to claim 5, characterized in that: A collar (54) is fixedly mounted on the end of the pull rod (51), and the collar (54) is sleeved on the outside of the extrusion rod (55).

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