Coil spring cushion structure

Abstract

The utility model discloses a spiral spring cushion structure, which relates to the technical field of spring cushions, and comprises a mandrel, a stainless steel cushion, a spiral spring arranged between the mandrel and the stainless steel cushion, and a telescopic anti-falling mechanism, through the arrangement of the telescopic anti-falling mechanism, the plurality of limiting telescopic rods are matched with one another, so that the spiral spring is limited between the core shaft and the stainless steel pad in a non-fixed manner, and the plurality of limiting telescopic rods can stretch out and draw back together with the spiral spring in use on the premise that the stability of the spiral spring is not influenced; and when the spiral spring is tired and damaged, the spiral spring can be quickly taken out from the limiting telescopic rods only by detaching and separating the limiting telescopic rods from the stainless steel pad, independent replacement and replacement are realized, so that the mandrel and the stainless steel pad do not need to be replaced together, the cost can be effectively reduced, and the economic benefit can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring cushion technology field, concretely relates to spiral spring cushion structure. BACKGROUND

[0002] According to the spring cushion structure of the utility model patent with the present announcement number CN206221565U, name for know that the spring cushion mainly consists of mandrel, spring and stainless steel pad, wherein spiral spring is fixed between mandrel and stainless steel pad, and then spring realizes buffering and reverse thrust effect in mechanism operation process, guarantees novel cushion performance;

[0003] But, spring is directly fixed between mandrel and stainless steel pad, so that spring and mandrel and stainless steel pad are integrated connection, once spring appears fatigue and cannot continue buffering when long -time use, artificial often needs to replace whole with mandrel and stainless steel pad, and spiral spring cannot be replaced alone, and then seriously can cause material waste, increase cost. UTILITY MODEL CONTENTS

[0004] To solve above-mentioned technical problem, provide spiral spring cushion structure, solved the prior art in spring directly fixed between mandrel and stainless steel pad, so that spring and mandrel and stainless steel pad are integrated connection, once spring appears fatigue and cannot continue buffering when long -time use, artificial often needs to replace whole with mandrel and stainless steel pad, and spiral spring cannot be replaced alone, and then seriously can cause material waste, increase cost problem.

[0005] To achieve the above purpose, the utility model adopts the technical scheme of spiral spring cushion structure, including mandrel, stainless steel pad located in the one side of mandrel and spiral spring set between the mandrel and the stainless steel pad, still include the telescopic anti -off mechanism for the spiral spring stable definition between the stainless steel pad and the mandrel;

[0006] The telescopic anti -off mechanism mainly consists of a plurality of limit telescopic rods distributed around the outer periphery of the spiral spring, one end of the limit telescopic rod is slidably connected with the mandrel, and the other end of the limit telescopic rod is detachably connected with the stainless steel pad.

[0007] One side of the stainless steel pad towards the mandrel is provided with a positioning groove, a locking block is inserted in the positioning groove, a contraction groove is formed in the inner side wall of the positioning groove, an elastic clamping piece is arranged in the contraction groove, and an annular driving groove is formed around the outer wall of the stainless steel pad.

[0008] Preferably, the elastic clamping piece comprises a locking tooth plate slidingly arranged in the contraction groove, a plurality of positioning tooth grooves are formed on one side of the locking block and matched with the locking tooth plate, and a return spring is fixed between the locking tooth plate and the inner wall of the innermost side of the contraction groove.

[0009] Preferably, the extruding piece comprises a ring-shaped sleeve rotatingly arranged in the inner side of the annular driving groove and a plurality of extruding blocks fixed to the inner wall of the ring-shaped sleeve in the shape of a fish fin, the inner side of the contraction groove is further transversely provided with an extruding rod, one end of the extruding rod is fixedly connected with the locking tooth plate, the other end of the extruding rod penetrates into the annular driving groove and is fixed with an extruding ball, and the extruding ball is in contact with the oblique edge of the extruding block.

[0010] Preferably, an L-shaped connecting plate is fixed to the outer wall of the ring-shaped sleeve, a connecting screw rod is threadedly penetrated through the bottom end of the connecting plate, and a fixing hole matched with the connecting screw rod is formed in the bottom surface of the stainless steel pad.

[0011] Preferably, a movable groove is formed in the side of the mandrel facing the stainless steel pad, and a movable block fixedly connected with one end of the limiting telescopic rod is slidingly arranged in the movable groove.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] (1) Through the setting of the telescopic anti-falling mechanism, the plurality of limiting telescopic rods are matched with each other, so that the coil spring is non-fixedly limited between the mandrel and the stainless steel pad, and then under the premise of not affecting the stability of the coil spring, the plurality of limiting telescopic rods can be synchronously telescoped with the coil spring during use, the motion resistance is reduced, and when the coil spring is worn out, the coil spring can be quickly taken out from between the plurality of limiting telescopic rods by only disassembling and separating the limiting telescopic rods and the stainless steel pad, the coil spring can be individually replaced, the mandrel and the stainless steel pad do not need to be replaced together, the cost can be effectively reduced, and the economic benefit is improved.

[0014] (2) The limiting telescopic rod and the mandrel are slidingly arranged, so that the distance between the plurality of limiting telescopic rods can be quickly adjusted according to the size of the required coil spring, the plurality of limiting telescopic rods can be applicable to limiting different types of coil springs, and the practicability and the use range of the device are enhanced to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of one side of the utility model as a whole.

[0016] Figure 2 It is a structure schematic view of the other side of the utility model as a whole.

[0017] Figure 3The utility model discloses a stainless steel pad internal structure schematic view

[0018] Figure 4 The utility model discloses Figure 3 The structure schematic view of A in the middle.

[0019] The figure mark is:

[0020] 1, mandrel;2, stainless steel pad;3, coil spring;4, define telescopic rod;5, movable slot;6, movable block;7, positioning groove;8, locking block;9, contraction groove;10, locking tooth plate;11, positioning tooth groove;12, annular drive groove;13, annular sleeve;14, extrusion block;15, extrusion rod;16, extrusion ball;17, return spring;18, connecting sheet;19, connecting screw rod. Specific implementation

[0021] The following description is used to disclose the utility model to enable the person skilled in the art to realize the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be thought of by the person skilled in the art.

[0022] Referring to Figures 1-4 As shown in the figure, the coil spring cushion structure includes mandrel 1, stainless steel pad 2 located at one side of mandrel 1 and coil spring 3 arranged between mandrel 1 and stainless steel pad 2, and further includes telescopic anti-dropping mechanism for stably limiting coil spring 3 between stainless steel pad 2 and mandrel 1.

[0023] The telescopic anti-dropping mechanism is mainly composed of a plurality of limiting telescopic rods 4 distributed around the outer periphery of coil spring 3. One end of limiting telescopic rod 4 is slidably connected with mandrel 1, and the other end of limiting telescopic rod 4 is detachably connected with stainless steel pad 2.

[0024] Through the setting of telescopic anti-dropping mechanism, the plurality of limiting telescopic rods 4 cooperate with each other to non-fixedly limit coil spring 3 between mandrel 1 and stainless steel pad 2, so that the plurality of limiting telescopic rods 4 can synchronously stretch and contract with coil spring 3 during use without affecting the stability of coil spring 3, thereby reducing the movement resistance. When coil spring 3 is worn out, limiting telescopic rod 4 and stainless steel pad 2 can be simply detached and separated, and coil spring 3 can be quickly taken out from the plurality of limiting telescopic rods 4, so that coil spring 3 can be replaced alone. In this way, the mandrel 1 and the stainless steel pad 2 do not need to be replaced together, which can effectively reduce the cost and improve the economic benefit.

[0025] And the slidable setting between limiting telescopic rod 4 and mandrel 1 can quickly adjust the spacing between the plurality of limiting telescopic rods 4 according to the size of the required coil spring 3, so that the plurality of limiting telescopic rods 4 can be suitable for limiting different types of coil springs 3, thereby enhancing the practicability and use range of the device to a certain extent.

[0026] Further, referring to Figure 2 It is worth noting that the core shaft 1 is provided with a movable groove 5 on the side facing the stainless steel pad 2, and a movable block 6 is slidably arranged in the movable groove 5 and fixedly connected with one end of the telescopic rod 4.

[0027] Through the sliding characteristics of the movable block 6 in the movable groove 5, the position of the telescopic rod 4 can be quickly adjusted by simply pushing and pulling the telescopic rod 4, and the spacing between the telescopic rods 4 can be adjusted to facilitate the placement of different types of spiral springs 3 between the telescopic rods 4.

[0028] Further, referring to Figures 1-4 It is worth noting that the core shaft 1 is provided with a movable groove 5 on the side facing the stainless steel pad 2, and a movable block 6 is slidably arranged in the movable groove 5 and fixedly connected with one end of the telescopic rod 4.

[0029] The elastic clamping piece includes a locking tooth plate 10 slidably arranged in the contraction groove 9, and a plurality of positioning tooth grooves 11 are formed on one side of the locking block 8 and matched with the teeth of the locking tooth plate 10. A return spring 17 is fixed between the locking tooth plate 10 and the inner wall of the contraction groove 9.

[0030] Through the setting of the elastic clamping piece and the extrusion piece, only by reducing the extrusion of the locking tooth plate 10 by the extrusion piece, the teeth of the locking tooth plate 10 can quickly disengage from the inside of the positioning tooth groove 11 under the elastic force of the return spring 17, thereby releasing the fixing effect of the locking block 8 in the positioning groove 7. In this way, the stainless steel pad 2 is pulled out, the locking block 8 is separated from the inside of the positioning groove 7, and the stainless steel pad 2 is separated from the other end of the telescopic rod 4, facilitating the disassembly of the spiral spring 3.

[0031] Further, referring to Figure 4 It is worth noting that the extrusion piece includes a ring-shaped sleeve 13 rotatably arranged in the inside of the annular driving groove 12 and a plurality of extrusion blocks 14 fixed to the inner wall of the ring-shaped sleeve 13 in the shape of a fish fin, and an extrusion rod 15 is transversely arranged on the inside of the contraction groove 9. One end of the extrusion rod 15 is fixedly connected with the locking tooth plate 10, the other end of the extrusion rod 15 penetrates into the annular driving groove 12 and is fixedly connected with an extrusion ball 16, and the oblique edge of the extrusion block 14 is in contact with the extrusion ball 16.

[0032] Rotating the ring-shaped sleeve 13, the extrusion block 14 can be deflected synchronously with the ring-shaped sleeve 13 in the inside of the annular driving groove 12, so that the oblique edge reduces the extrusion of the extrusion ball 16 and the extrusion rod 15 as a whole, and the extrusion force on the locking tooth plate 10 is also reduced.

[0033] Further, referring to Figure 1 and Figure 4 It is worth mentioning that the outer wall of the annular sleeve 13 is fixed with an L-shaped connecting piece 18, the bottom end of the connecting piece 18 is threaded with a connecting screw 19, and the bottom surface of the stainless steel pad 2 is provided with a fixing hole matched with the connecting screw 19.

[0034] Through the setting of the connecting piece 18 and the connecting screw 19, the annular sleeve 13 is conveniently rotated in the inner side of the annular driving groove 12 by simply pushing the connecting piece 18, after rotating to a certain extent and realizing the fixation of the locking block 8 in the inner side of the positioning groove 7, the knob connecting screw 19 is rotated to make the connecting screw 19 penetrate into the fixing hole under the threaded structure, so that the annular sleeve 13 can be effectively locked, and the fixation effect of the constant 10 on the locking block 8 is constant.

[0035] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A helical spring cushion structure comprising a core shaft (1), a stainless steel pad (2) located on one side of the core shaft (1), and a helical spring (3) provided between the core shaft (1) and the stainless steel pad (2), characterized in that, It also includes a telescopic anti-off mechanism for stably defining the coil spring (3) between the stainless steel pad (2) and the mandrel (1); The telescopic anti-off mechanism is mainly composed of a plurality of limiting telescopic rods (4) distributed around the outer periphery of the coil spring (3), one end of the limiting telescopic rod (4) is in sliding connection with the mandrel (1), and the other end of the limiting telescopic rod (4) is in detachable connection with the stainless steel pad (2); One side of the stainless steel pad (2) facing the mandrel (1) is provided with a positioning groove (7), a locking block (8) is detachably arranged in the positioning groove (7), a contraction groove (9) is formed in the inner side wall of the positioning groove (7), an elastic clamping piece is arranged in the contraction groove (9), and an annular driving groove (12) is formed around the outer wall of the stainless steel pad (2), and an extrusion piece matched with the elastic clamping piece is arranged in the annular driving groove (12).

2. The helical spring cushion structure of claim 1, wherein, The elastic clamping piece includes a locking toothed plate (10) slidingly arranged in the contraction groove (9), a plurality of positioning tooth grooves (11) matched with the teeth of the locking toothed plate (10) are formed in one side of the locking block (8), and a return spring (17) is fixed between the locking toothed plate (10) and the inner wall of the contraction groove (9).

3. The helical spring cushion structure of claim 2, wherein, The extrusion piece includes an annular sleeve (13) rotatably arranged in the inner side of the annular driving groove (12) and a plurality of extrusion blocks (14) fixed to the inner wall of the annular sleeve (13) in the shape of a fish fin, the inner side of the contraction groove (9) is also transversely provided with an extrusion rod (15), one end of the extrusion rod (15) is fixedly connected with the locking toothed plate (10), the other end of the extrusion rod (15) penetrates into the annular driving groove (12) and is fixedly connected with an extrusion ball (16), and the extrusion ball (16) is in contact with the inclined edge of the extrusion block (14).

4. The helical spring cushion structure of claim 3, wherein, An L-shaped connecting sheet (18) is fixed to the outer wall of the annular sleeve (13), a connecting screw rod (19) is threadedly penetrated through the bottom end of the connecting sheet (18), and a fixing hole matched with the connecting screw rod (19) is formed in the bottom surface of the stainless steel pad (2).

5. The helical spring cushion structure of claim 1, wherein, An activity groove (5) is formed in the side of the mandrel (1) facing the stainless steel pad (2), and an activity block (6) fixedly connected with one end of the limiting telescopic rod (4) is slidingly arranged in the activity groove (5).

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