CN219413353U - Irregular torsion spring - Google Patents

Abstract

The utility model discloses an irregular torsion spring, which comprises a torsion spring body, wherein two ends of the torsion spring body are respectively and fixedly connected with a connecting rod, one ends of the connecting rods, which are far away from the torsion spring body, are respectively and fixedly connected with a threaded rod, the threaded rods are respectively sleeved with a nut through a threaded structure, one side of the nut is rotationally connected with an extension cylinder, the extension cylinder is slidably sleeved outside the threaded rod, one side of the extension cylinder, which is close to the nut, is movably provided with a limiting assembly, the limiting assembly is clamped with a limiting ring, and the limiting ring is sleeved outside the extension cylinder. The extension cylinder that establishes through the slip cap can adjust the length at torsion spring body both ends, and then can be suitable for the interval position of different span length, has increased the application scope of torsion spring body.

Description

Irregular torsion spring

Technical Field

The utility model relates to the technical field of torsion springs, in particular to an irregular torsion spring.

Background

The torsion spring is a mechanical power storage structure, the torsion spring stores and utilizes the torsion or rotation of elastic materials with soft materials and high toughness, so that an object to be launched has certain mechanical energy, meanwhile, the torsion spring is a complex one of all spring types in design principle, the type change is quite active, so that the theory involved in the design is most complicated, the modern torsion spring torsion bar is made of steel with high elasticity, the form is also greatly changed, for example, chinese patent publication No. CN208123321U discloses an irregular torsion spring, the irregular torsion spring comprises a first spring ring, a second spring ring and a third spring ring, one end of the first spring ring is fixedly connected with one end of the second spring ring, the other end of the second spring ring is fixedly connected with one end of the third spring ring, the other end of the third spring ring is fixedly connected with one end of a first connecting rod, a first external threaded part is arranged outside the other end of the first connecting rod, a first nut is screwed outside the first external threaded part of the first connecting rod, one end of the first spring ring is fixedly connected with the second connecting rod, and a second external threaded part is arranged outside the second connecting rod.

Above-mentioned torsion spring passes through spacing piece and the nut of tip, is difficult for droing when making torsion spring installation, but this torsion spring's tip length is fixed, to the inconvenient regulation of length of tip when the installation, when the position span of pivot position and joint is great, then need change the torsion spring of different length, application scope is narrower, for this we propose an irregular torsion spring and are used for solving above-mentioned problem.

Disclosure of Invention

The present utility model is directed to an irregular torsion spring to solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an irregular torsion spring, includes the torsion spring body, the both ends of torsion spring body are fixed connection connecting rod respectively, the one end of torsion spring body is kept away from to the connecting rod is fixed connection threaded rod respectively, the threaded rod cup joints the nut through the helicitic texture respectively, one side of nut rotates and connects an extension section of thick bamboo, extension section of thick bamboo slip cap is established outside the threaded rod, one side activity that an extension section of thick bamboo is close to the nut is equipped with spacing subassembly, spacing subassembly joint has the spacing ring, the spacing ring cup joints outside an extension section of thick bamboo.

Preferably, the threaded rod is provided with a limiting chute along the inward recess of the length direction, the inner wall of the limiting chute is provided with a plurality of positioning holes, and the positioning holes are in plug-in fit with the limiting assembly.

Preferably, the inner wall of one side of the extension cylinder, which is close to the screw cap, is fixedly connected with a limit sliding block, the limit sliding block is in sliding connection with a limit sliding groove, and the extension cylinder and the limit sliding block are respectively provided with a movable cavity which is mutually communicated.

Preferably, the inner wall of one side of the limiting ring is concavely provided with a plug hole, the plug hole is in plug fit with the limiting assembly, and the periphery of the outer wall of the limiting ring is provided with anti-slip teeth.

Preferably, the limiting component comprises a movable rod, a supporting ring and a spring, wherein the supporting ring is movably arranged in the movable cavity, one end of the spring is fixedly connected to the bottom of the supporting ring, the other end of the spring is fixedly connected with the inner wall of the movable cavity, the movable rod is fixedly sleeved in the supporting ring, and the movable rod is movably sleeved in the movable cavity.

Preferably, one end of the movable rod is provided with a dome structure and the dome structure is in plug-in fit with the plug-in hole, and the other end of the movable rod is in plug-in fit with the positioning hole.

Compared with the prior art, the utility model has the beneficial effects that: the extension cylinder that establishes through the slip cap can adjust the length at torsion spring body both ends, and then can be suitable for the interval position of different span length, has increased the application scope of torsion spring body.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic view of the cross-sectional structure of the position of the threaded rod according to the present utility model;

fig. 4 is an enlarged schematic view of the structure a in fig. 3 according to the present utility model.

In the figure: torsion spring body 1, connecting rod 2, threaded rod 3, spacing spout 31, locating hole 32, nut 4, spacing ring 5, anti-skidding tooth 51, spliced eye 52, extension section of thick bamboo 6, spacing slider 61, movable chamber 62, spacing subassembly 7, movable rod 71, supporting ring 72, spring 73.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1 and 2, in a first embodiment of the present utility model, an irregular torsion spring is provided, and the irregular torsion spring includes a torsion spring body 1, two ends of the torsion spring body 1 are respectively and fixedly connected with a connecting rod 2, one ends of the connecting rod 2, which are far away from the torsion spring body 1, are respectively and fixedly connected with a threaded rod 3, the threaded rod 3 is respectively sleeved with a nut 4 through a threaded structure, one side of the nut 4 is rotatably connected with an extension cylinder 6, the extension cylinder 6 is slidably sleeved outside the threaded rod 3, one side of the extension cylinder 6, which is close to the nut 4, is movably provided with a limiting component 7, the limiting component 7 is clamped with a limiting ring 5, and the limiting ring 5 is sleeved outside the extension cylinder 6. According to the space size of mounted position, at first take off spacing ring 5, then rotate nut 4, nut 4 is through the helicitic texture cooperation with threaded rod 3, drive extension section of thick bamboo 6 and stretch out from threaded rod 3, and then increase connecting rod 2, threaded rod 3 and extension section of thick bamboo 6's total length, length position is confirmed the back, embolia spacing ring 5 from the tip of extension section of thick bamboo 6, spacing ring 5 removes to spacing subassembly 7's position, spacing subassembly 7 and spacing ring 5 grafting cooperation, guarantee the fixed position of spacing ring 5, spacing subassembly 7 and threaded rod 3 grafting cooperation simultaneously, further spacing to extension section of thick bamboo 6's length, avoid nut 4 to become flexible, the steadiness of extension section of thick bamboo 6 structure has been guaranteed, the torsion spring body 1 both ends of adjusting length this moment, the steadiness when having improved torsion spring body 1 installation.

Example 2

Referring to fig. 1-4, in a second embodiment of the present utility model, based on the previous embodiment, specifically, the threaded rod 3 is concavely provided with a limiting chute 31 along the length direction, the inner wall of the limiting chute 31 is provided with a plurality of positioning holes 32, and the positioning holes 32 are in plug-in fit with the limiting assembly 7.

Specifically, the inner wall of one side of the extension cylinder 6, which is close to the screw cap 4, is fixedly connected with a limit sliding block 61, the limit sliding block 61 is in sliding connection with a limit sliding groove 31, and the extension cylinder 6 and the limit sliding block 61 are respectively provided with a movable cavity 62 which is mutually communicated. The limiting slide block 61 is in sliding clamping connection with the limiting slide groove 31, so that the extension cylinder 6 can linearly move, the extension cylinder 6 is prevented from synchronously rotating along with the nut 4, and the vertical section of the movable cavity 62 is of a cross-shaped structure.

Specifically, the indent is equipped with spliced eye 52 in one side inner wall of spacing ring 5, and spliced eye 52 and spacing subassembly 7 grafting cooperation, and the outer wall week side of spacing ring 5 is equipped with anti-skidding tooth 51, and anti-skidding tooth 51 that spacing ring 5 outer wall week side set up has increased the frictional force with the mounted position contact, has further improved the steadiness of torsion spring body 1 installation.

Specifically, the limiting component 7 comprises a movable rod 71, a supporting ring 72 and a spring 73, wherein the supporting ring 72 is movably arranged in the movable cavity 62, the bottom of the supporting ring 72 is fixedly connected with one end of the spring 73, the other end of the spring 73 is fixedly connected with the inner wall of the movable cavity 62, the movable rod 71 is fixedly sleeved in the supporting ring 72, and the movable rod 71 is movably sleeved in the movable cavity 62.

Specifically, one end of the movable rod 71 is provided with a dome structure and the dome structure is in plug-in fit with the plug-in hole 52, and the other end of the movable rod 71 is in plug-in fit with the positioning hole 32. After the limiting ring 5 is taken down, the elastic force of the spring 73 drives one end of the movable rod 71 to separate from the positioning hole 32, and then the extension cylinder 6 can be conveniently moved, the function of adjusting the lengths of the two ends of the torsion spring body 1 is achieved, after the limiting ring 5 is sleeved, the limiting ring 5 moves to the position of the limiting component 7, the end part of the movable rod 71 of the limiting component 7 is inserted into the inserting hole 52 under the elastic force of the spring 73, the inner wall of the inserting hole 52 abuts against one end of the movable rod 71, meanwhile, the other end of the movable rod 71 is inserted into the positioning hole 32, further the length of the extension cylinder 6 is further limited, the looseness of the nut 4 is avoided, the stability of the structure of the extension cylinder 6 is guaranteed, and the two ends of the torsion spring body 1 are adjusted at the moment, and the stability of the torsion spring body 1 during installation is improved.

Example 3

Referring to fig. 1-4, in the third embodiment of the present utility model, when the present utility model is used, based on the above two embodiments, according to the space size of the installation position, the stop collar 5 is firstly removed, then the nut 4 is turned, the nut 4 drives the extension tube 6 to extend from the threaded rod 3 by matching with the threaded structure of the threaded rod 3, further increasing the total length of the connecting rod 2, the threaded rod 3 and the extension tube 6, after the length position is determined, the stop collar 5 is sleeved from the end of the extension tube 6, the stop collar 5 moves to the position of the stop assembly 7, the end of the movable rod 71 of the stop assembly 7 is inserted into the insertion hole 52 under the elastic force of the spring 73, the inner wall of the insertion hole 52 abuts against one end of the movable rod 71, and simultaneously the other end of the movable rod 71 is inserted into the positioning hole 32, further limiting the length of the extension tube 6, so as to avoid loosening of the nut 4, ensure the stability of the structure of the extension tube 6, at this time, the two ends of the length-adjusted torsion spring body 1 are improved, simultaneously the anti-skid teeth 51 arranged on the peripheral side of the outer wall of the stop collar 5 are sleeved on the end of the torsion spring body 1, the friction body contacted with the installation position is increased, and the stability of the torsion spring 1 is further improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. An irregular torsion spring comprises a torsion spring body (1), and is characterized in that: the torsion spring is characterized in that the two ends of the torsion spring body (1) are fixedly connected with the connecting rod (2) respectively, the connecting rod (2) is far away from one end of the torsion spring body (1) and is fixedly connected with the threaded rod (3) respectively, the threaded rod (3) is sleeved with the screw cap (4) through a threaded structure respectively, one side of the screw cap (4) is rotated and is connected with the extension cylinder (6), the extension cylinder (6) is slidably sleeved outside the threaded rod (3), one side of the extension cylinder (6) close to the screw cap (4) is movably provided with the limiting component (7), the limiting component (7) is clamped with the limiting ring (5), and the limiting ring (5) is sleeved outside the extension cylinder (6).

2. An irregular torsion spring according to claim 1, wherein: the threaded rod (3) is provided with a limiting chute (31) along the inward concave direction of the length direction, the inner wall of the limiting chute (31) is provided with a plurality of positioning holes (32), and the positioning holes (32) are in plug-in connection with the limiting assembly (7).

3. An irregular torsion spring according to claim 2, wherein: the inner wall of one side of the extension cylinder (6) close to the screw cap (4) is fixedly connected with a limit sliding block (61), the limit sliding block (61) is in sliding connection with a limit sliding groove (31), and the extension cylinder (6) and the limit sliding block (61) are respectively provided with a movable cavity (62) which are mutually communicated.

4. An irregular torsion spring according to claim 3, wherein: the anti-slip limiting device is characterized in that an inserting hole (52) is concavely formed in the inner wall of one side of the limiting ring (5), the inserting hole (52) is in inserting fit with the limiting assembly (7), and anti-slip teeth (51) are arranged on the periphery of the outer wall of the limiting ring (5).

5. An irregular torsion spring according to claim 4, wherein: the limiting component (7) comprises a movable rod (71), a supporting ring (72) and a spring (73), wherein the supporting ring (72) is movably arranged in the movable cavity (62), one end of the spring (73) is fixedly connected to the bottom of the supporting ring (72), the other end of the spring (73) is fixedly connected with the inner wall of the movable cavity (62), the movable rod (71) is fixedly sleeved in the supporting ring (72), and the movable rod (71) is movably sleeved in the movable cavity (62).

6. An irregular torsion spring according to claim 5, wherein: one end of the movable rod (71) is provided with a dome structure, the dome structure is in plug-in fit with the plug-in hole (52), and the other end of the movable rod (71) is in plug-in fit with the positioning hole (32).