Spring sleeve

Abstract

The utility model discloses a spring sleeve, and relates to the technical field of spring sleeves, the spring sleeve comprises a sleeve, a slide block is slidably connected in the sleeve, and a positioning rod is slidably connected in the slide block; a spring is fixedly connected to the top of the sliding block, an adjusting assembly is arranged in the sliding block, and the adjusting assembly comprises an adjusting bolt and an adjusting nut. By arranging the adjusting assembly, when the length of the positioning rod is adjusted, firstly, the adjusting nut is reversely rotated, so that the adjusting nut is separated from the adjusting bolt, then the adjusting bolt is pulled out from the interior of the sliding block, and then the sliding block is moved to a proper adjusting hole; and the position of the sliding block is fixed through the cooperation of the adjusting nut and the adjusting bolt, the adjusting mode is simple and rapid, the distance between the positioning rod and the sleeve can be easily adjusted without bearing the counter-acting force of the spring, and convenience is brought to the use of the device.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring sleeve technical field, especially a kind of spring sleeve. BACKGROUND

[0002] In mechanical device, spring sleeve is often used to realize elastic support, buffering or adjustment function.

[0003] The patent with the patent name of a buckle structure and plastic spring sleeve (the patent application number is 202321332598.5) discloses a buckle structure and plastic spring sleeve, and belongs to the technical field of spring sleeve.The buckle structure includes buckle assembly.The buckle assembly includes sleeve, locking piece, insertion rod, limiting plate and elastic piece, when using, locking piece is threaded again in one threaded hole, locking piece is inserted into limiting slot, and then the insertion rod is limited, and then the length between insertion rod and sleeve is shortened, when the tightness of elastic piece needs to be adjusted, limiting plate moves to sleeve, limiting plate will compress elastic piece, limiting plate moves to the bottom end of insertion rod, the distance between limiting plate and sleeve is lengthened, and then elastic piece is elongated, and then the tightness of elastic piece can be adjusted, the length between insertion rod and sleeve can be adjusted, the tightness of elastic piece can be adjusted, the scope of application is wider, and the practicality is higher.

[0004] The above-mentioned case can adjust the distance between insertion rod and sleeve, but the adjustment mode will make spring in compressed state, spring will generate reaction force, which will hinder the movement of insertion rod in sleeve, and bring inconvenience to the adjustment of the device.Therefore, it is necessary to provide a spring sleeve to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of spring sleeve, to solve the above-mentioned problems in the background art that the above-mentioned case can adjust the distance between insertion rod and sleeve, but the adjustment mode will make spring in compressed state, spring will generate reaction force, which will hinder the movement of insertion rod in sleeve, and bring inconvenience to the adjustment of the device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of spring sleeve, including sleeve, the inside of the sleeve is slidably connected with slider, the inside of the slider is slidably connected with positioning rod;And the top of slider is fixedly connected with spring;

[0007] The inside of the slider is provided with adjusting assembly;

[0008] The adjusting assembly includes adjusting bolt and adjusting nut;

[0009] The inside of the sleeve is provided with an adjusting hole, the outside of the adjusting bolt is inserted into the inside of the adjusting hole, the inside of the sliding block is provided with an insertion hole, and the insertion hole is inserted into the adjusting bolt.

[0010] Preferably, the number of the adjusting bolts is two, and the two adjusting bolts are symmetrically distributed in the inside of the sliding block insertion hole.

[0011] Preferably, the inside of the sliding block is provided with a sliding groove, the outside of the positioning rod is fixedly connected with a positioning block, and the positioning block and the sliding groove are in sliding connection.

[0012] Preferably, the bottom end of the positioning rod is provided with a limiting assembly, the limiting assembly comprises a positioning plate, a rubber pad, a limiting bolt and a limiting nut, the top of the positioning plate is fixedly connected with the bottom end of the positioning rod, the bottom of the positioning plate is fixedly connected with the top of the rubber pad, the outside of the limiting bolt is inserted into the inside of the adjusting hole, and the outside of the limiting bolt is in threaded connection with the inside of the limiting nut.

[0013] Preferably, the outside of the positioning plate is in sliding connection with the inside of the sleeve, and the diameter value of the positioning plate is equal to the diameter value of the sliding block.

[0014] Preferably, the outside of the positioning rod is in sliding connection with the inside of the spring, the top end of the spring is fixedly connected with a fixed block, and the inside of the fixed block is fixedly connected with the outside of the positioning rod.

[0015] The technical effects and advantages of the utility model are as follows:

[0016] 1. By setting the adjusting assembly, when the length of the positioning rod is adjusted, firstly, the adjusting nut is reversely rotated, the adjusting nut is separated from the adjusting bolt, then the adjusting bolt is taken out from the inside of the sliding block, the sliding block is moved to the appropriate adjusting hole, and the position of the sliding block is fixed by the cooperation of the adjusting nut and the adjusting bolt.

[0017] 2. By the cooperation of the positioning plate, the rubber pad and the limiting assembly, the distance of the downward movement of the positioning plate is blocked by the limiting bolt, the limiting bolt is inserted into different adjusting holes, the effective number of turns of the spring is adjusted, the spring force is adjusted, when the positioning plate moves downward and contacts the limiting bolt, the rubber pad buffers the impact force, the buffering performance of the spring is improved, and the protection of the positioning plate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1It is a front view of the spring sleeve.

[0019] Fig. 2 It is a front view of the spring sleeve.

[0020] Fig. 3 It is a bottom view of the sleeve.

[0021] In the figure: 1, sleeve; 2, sliding block; 3, positioning rod; 4, spring; 5, adjusting hole; 6, adjusting bolt; 7, sliding groove; 8, positioning block; 9, positioning plate; 10, rubber pad; 11, limiting bolt; 12, limiting nut; 13, adjusting nut; 14, fixed block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] The utility model provides a kind of spring sleeve as Figs. 1-3 shown in the figure, including sleeve 1, it is characterized in that: the inside of sleeve 1 is slidably connected with sliding block 2, the inside of sliding block 2 is slidably connected with positioning rod 3;And the top of sliding block 2 is fixedly connected with spring 4, the inside of sliding block 2 is provided with adjusting assembly, adjusting assembly includes adjusting bolt 6 and adjusting nut 13, wherein, adjusting hole 5 is set in the inside of sleeve 1, adjusting bolt 6 is inserted with the inside of adjusting hole 5, plug hole is set in the inside of sliding block 2, plug hole is inserted between adjusting bolt 6, the outside of adjusting bolt 6 is screw connected with the inside of adjusting nut 13, the number of adjusting bolt 6 is two, and two adjusting bolts 6 are symmetrically distributed in the inside of sliding block 2 plug hole.Can when the length of positioning rod 3 is adjusted, first counter-rotating adjusting nut 13, so that adjusting nut 13 is separated from adjusting bolt 6, then adjusting bolt 6 is extracted from the inside of sliding block 2, then sliding block 2 is moved to appropriate adjusting hole 5, then the position of sliding block 2 is fixed using the cooperation of adjusting nut 13 and adjusting bolt 6, which can easily adjust the distance between positioning rod 3 and sleeve 1 without bearing the reaction force of spring 4, which brings convenience for the use of the device.

[0024] In addition, the inside of sliding block 2 is provided with sliding groove 7, the outside of positioning rod 3 is fixedly connected with positioning block 8, and positioning block 8 is slidably connected with sliding groove 7. The cooperation of positioning block 8 and sliding groove 7 can improve the stability of the vertical movement of positioning rod 3, which brings convenience for the extension and contraction of positioning rod 3.

[0025] Finally, the bottom end of the positioning rod 3 is provided with a limiting assembly, the limiting assembly comprises a positioning plate 9, a rubber pad 10, a limiting bolt 11 and a limiting nut 12; the top of the positioning plate 9 is fixedly connected with the bottom end of the positioning rod 3, and the bottom of the positioning plate 9 is fixedly connected with the top of the rubber pad 10, the outside of the limiting bolt 11 is inserted into the inside of the adjusting hole 5, and the outside of the limiting bolt 11 is threadedly connected with the inside of the limiting nut 12, the outside of the positioning plate 9 is slidingly connected with the inside of the sleeve 1, and the diameter value of the positioning plate 9 is equal to the diameter value of the sliding block 2, the outside of the positioning rod 3 is slidingly connected with the inside of the spring 4, and the top end of the spring 4 is fixedly connected with a fixed block 14, and the inside of the fixed block 14 is fixedly connected with the outside of the positioning rod 3. When the positioning rod 3 is driven by gravity to move downward, the limiting bolt 11 is used to block the downward movement of the positioning plate 9, and the limiting bolt 11 is inserted into different adjusting holes 5, so that the effective number of turns of the spring 4 can be adjusted, thereby adjusting the spring force of the spring 4, and when the positioning plate 9 moves downward and contacts the limiting bolt 11, the rubber pad 10 can buffer the impact force, thereby improving the buffering performance of the spring 4 and improving the protection of the positioning plate 9.

[0026] Working principle: when the length of the positioning rod 3 is adjusted, the adjusting nut 13 is first rotated in the opposite direction to separate the adjusting nut 13 from the adjusting bolt 6, then the adjusting bolt 6 is pulled out of the inside of the sliding block 2, then the sliding block 2 is moved to the appropriate adjusting hole 5, and then the position of the sliding block 2 is fixed by the cooperation of the adjusting nut 13 and the adjusting bolt 6. This adjustment method is simple and fast, and does not need to bear the reaction force of the spring 4, so that the distance between the positioning rod 3 and the sleeve 1 can be easily adjusted, which brings convenience to the use of the device. When the positioning rod 3 is driven by gravity to move downward, the limiting bolt 11 is used to block the downward movement of the positioning plate 9, and the limiting bolt 11 is inserted into different adjusting holes 5, so that the effective number of turns of the spring 4 can be adjusted, thereby adjusting the spring force of the spring 4, and when the positioning plate 9 moves downward and contacts the limiting bolt 11, the rubber pad 10 can buffer the impact force, thereby improving the buffering performance of the spring 4 and improving the protection of the positioning plate 9.

Claims

1. A spring sleeve comprising a sleeve (1), characterized in that: The inside of the sleeve (1) is slidably connected with a sliding block (2), the inside of the sliding block (2) is slidably connected with a positioning rod (3); and the top of the sliding block (2) is fixedly connected with a spring (4); The inside of the sliding block (2) is provided with an adjusting assembly; The adjusting assembly comprises an adjusting bolt (6) and an adjusting nut (13); The inside of the sleeve (1) is provided with an adjusting hole (5), the outside of the adjusting bolt (6) is inserted into the inside of the adjusting hole (5), the inside of the sliding block (2) is provided with a insertion hole, the insertion hole is inserted into the adjusting bolt (6), and the outside of the adjusting bolt (6) is threadedly connected with the inside of the adjusting nut (13).

2. A spring sleeve according to claim 1, characterised in that: The number of the adjusting bolt (6) is two, and the two adjusting bolts (6) are symmetrically distributed in the inside of the insertion hole of the sliding block (2).

3. A spring sleeve according to claim 1, characterized in that: The inside of the sliding block (2) is provided with a sliding groove (7), the outside of the positioning rod (3) is fixedly connected with a positioning block (8), and the positioning block (8) is slidably connected with the sliding groove (7).

4. A spring sleeve according to claim 1, characterized in that: The bottom end of the positioning rod (3) is provided with a limiting assembly, the limiting assembly comprises a positioning plate (9), a rubber pad (10), a limiting bolt (11) and a limiting nut (12); the top of the positioning plate (9) is fixedly connected with the bottom end of the positioning rod (3), the bottom of the positioning plate (9) is fixedly connected with the top of the rubber pad (10), the outside of the limiting bolt (11) is inserted into the inside of the adjusting hole (5), and the outside of the limiting bolt (11) is threadedly connected with the inside of the limiting nut (12).

5. A spring sleeve according to claim 4, characterised in that: The outside of the positioning plate (9) is slidably connected with the inside of the sleeve (1), and the diameter value of the positioning plate (9) is equal to the diameter value of the sliding block (2).

6. A spring sleeve according to claim 1, characterized in that: The outside of the positioning rod (3) is slidably connected with the inside of the spring (4), the top end of the spring (4) is fixedly connected with a fixed block (14), and the inside of the fixed block (14) is fixedly connected with the outside of the positioning rod (3).

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