CN212959623U - Tension-compression elastic mechanism - Google Patents
Tension-compression elastic mechanism Download PDFInfo
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- CN212959623U CN212959623U CN202020789689.1U CN202020789689U CN212959623U CN 212959623 U CN212959623 U CN 212959623U CN 202020789689 U CN202020789689 U CN 202020789689U CN 212959623 U CN212959623 U CN 212959623U
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- sleeve
- spring
- inner sleeve
- compression spring
- compression
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Abstract
The utility model discloses a draw and press elastic mechanism, including compression spring, interior sleeve pipe, outer tube, spring fixed part, load part. The inner sleeve and the outer sleeve are provided with elongated holes which have the same shape and contour and size and penetrate through the sleeve wall. The inner sleeve is positioned in the outer sleeve, and the strip-shaped holes of the inner sleeve are aligned with the strip-shaped holes of the outer sleeve. The spring fixing part fixes the compression spring between two ends of the elongated holes of the inner sleeve and the outer sleeve to form a tensile and compressive elastic mechanism. The utility model discloses a draw and press elastic mechanism, simple structure, application scope is wide.
Description
Technical Field
The utility model relates to a spring especially relates to a draw pressure elastic mechanism.
Background
The spring is a part made of elastic material, deforms under the action of external force, and restores to the original shape after the external force is removed. In order to adapt to different working environments, the springs can be divided into: compression springs, extension springs, torsion springs, bending springs, and the like.
Many working environments need springs to bear compression external force and tensile external force, and the springs can restore the original shape well; the compression spring can well bear the compression force and can be well restored; due to the limitation of design and material characteristics, the common compression spring is easy to cause the compression spring to be incapable of recovering the original shape after bearing the tensile force and deforming. At present, the tension and compression spring is manufactured, the requirements on materials and design in the manufacturing process are high, the structure is complex, and the service life is not ideal.
The current solution to this problem is to use a combination of a compression spring and an extension spring, or two compression springs. When the spring is subjected to external force of compression or extension, one spring acts, and the other spring is in a natural state.
Such as: the invention discloses a tension-compression elastic support (with the patent number of CN 201310114122.9), which comprises a support top plate, an outer protective cylinder, an inner protective cylinder, an annular baffle, a steel core column, a spring partition plate, a steel sliding plate, an abrasion-resistant plate, a support bottom plate and upper and lower disc spring groups. The elastic rigidity required by the structural design is provided by controlling the specification and the number of the disc springs selected from the support, and meanwhile, the bearing capacity and the deformation requirement of the support can be considered.
Such as: the invention discloses a force actuator based on a tension and compression spring set (patent number: CN 201510274387.4), which comprises a shell, a motor, a fixed seat, a fixing mechanism, a ball screw, a nut, a force measuring element, an output shaft, a first spring retainer, a second spring retainer, a guide shaft set, a compression spring set, an adjusting mechanism set and an extension spring set, wherein the guide shaft set consists of N guide shafts, the compression spring set consists of N compression springs, the compression springs correspond to the guide shafts one to one, the compression springs are sleeved on the guide shafts, and two ends of each compression spring are respectively contacted with the first spring retainer and the second spring retainer; the adjusting mechanism group consists of N adjusting mechanisms, the extension spring group consists of N extension springs, the extension springs correspond to the adjusting mechanisms one by one, one end of each extension spring is fixed on the second spring supporting frame, the other end of each extension spring is fixed on the adjusting mechanism, and N is more than or equal to 3.
Such as: chinese patent, a tension-compression two-way sensor (patent number: 201620365262.2), discloses a tension-compression two-way sensor, comprising an outer cylinder body, a screw cap and a piston component, wherein one end of the outer cylinder body is closed and provided with an extended extending rod, the other end is an open end, the screw cap is matched with the open end of the outer cylinder body in a rotating way, the inner section of an inner hole of the outer cylinder body is a fine hole, the outer section of the inner hole of the outer cylinder body is a coarse hole, a step is formed between the fine hole and the coarse hole, the piston component comprises a protruding part, a sliding rod and a connecting rod which are positioned at two sides of the protruding part, the sliding rod is matched with the fine hole in a sliding way, a first compression spring is sleeved on the sliding rod, the first compression spring is abutted between the step and the protruding part, the connecting rod extends out of the through hole of the screw cap to form an exposed connecting part, a second compression spring is sleeved on the, the outer cylinder body is provided with an opening, and a Hall element corresponding to the magnetic steel is arranged in the opening.
Such as: chinese patent, a coefficient adjustable tension and compression spring loading mechanism (patent No. CN 201320323872.2), discloses a coefficient adjustable tension and compression spring loading mechanism, which mainly includes a fixed unit, a movable unit, a compression spring and an extension spring set. The compression spring is arranged between the fixed unit and the movable unit, and the extension spring is arranged in the inner structure of the movable unit, so that the coefficients of the compression spring and the extension spring are different or the same, and different load forces are provided when the movable unit performs displacement action of shortening or increasing the distance relative to the fixed unit.
The above-mentioned solutions for the use of compression and/or tension springs not only add significant complexity to the system, but also affect the stability of the system and can cause difficulties in the miniaturization of the device. If a simple mechanism which can bear the external stretching force and the external compression force can be constructed by using a single compression spring, the problem can be solved. Therefore, the utility model discloses a draw and press elastic mechanism.
Disclosure of Invention
The utility model discloses the problem that will solve is: a compression spring is used to construct a tension-compression elastic mechanism.
For solving the technical problem, the utility model discloses use a compression spring to constitute one kind and draw pressure elastic mechanism under the restriction of sleeve pipe and spring fixing part, including compression spring (1), interior sleeve pipe (2), outer tube (3).
An inner sleeve force-bearing part (4) is arranged at one end of the inner sleeve (2), an outer sleeve force-bearing part (5) is arranged at one end of the outer sleeve (3), and the inner sleeve force-bearing part (4) and the outer sleeve force-bearing part (5) are positioned at two ends of the whole mechanism.
The sleeve wall of the inner sleeve (2) is provided with inner sleeve long-strip holes (6) which have the same appearance and size and are opposite to the sleeve wall, and the sleeve wall of the outer sleeve (3) is provided with outer sleeve long-strip holes (7) which have the same appearance and size and are opposite to the sleeve wall.
The inner sleeve elongated hole (6) and the outer sleeve elongated hole (7) are consistent in outline and length, and the length of the inner sleeve elongated hole can be equal to or less than the length of the compression spring (1) according to the preset force bearing requirement.
The inner sleeve (2) is positioned in the outer sleeve (3), and the inner sleeve (2) can move relatively in the outer sleeve (3) along the direction of the elongated hole.
When the inner sleeve (2) is placed into the outer sleeve (3), the contour lines of the inner sleeve elongated holes (6) and the outer sleeve elongated holes (7) are aligned.
Set up spring fixed part one (8) and spring fixed part two (9), will spring fixed part one (8) is passed endotheca pipe rectangular shape hole (6) with overcoat pipe rectangular shape hole (7) block fixedly the one end of compression spring (1) will spring fixed part two (9) are passed endotheca pipe rectangular shape hole (6) with overcoat pipe rectangular shape hole (7) block fixedly the other end of compression spring (1) constitutes one and draws pressure elastic mechanism.
In a natural state of the tension and compression elastic mechanism, because the length of the inner sleeve elongated hole (6) is equal to that of the outer sleeve elongated hole (7), and the length of the inner sleeve elongated hole is equal to or less than that of the compression spring (1), the initial elastic value of the tension and compression elastic mechanism can be zero or a preset value.
The two ends of the whole mechanism are adapted to the inner sleeve bearing part (4) and the outer sleeve bearing part (5) according to the application environment and the form and mode of bearing external force. The inner sleeve bearing part (4) and the outer sleeve bearing part (5) bear external force and transmit corresponding external force to the inner sleeve (2) and the outer sleeve (3).
When external force is applied to the inner sleeve force bearing part (4) and the outer sleeve force bearing part (5), the inner sleeve force bearing part (4) and the outer sleeve force bearing part (5) transmit the external force to the inner sleeve (2) and the outer sleeve (3), so that relative displacement is generated between the inner sleeve (2) and the outer sleeve (3). No matter the whole mechanism bears a compression external force or a stretching external force, the length of the overlapped part of the inner sleeve pipe elongated hole (6) and the outer sleeve pipe elongated hole (7) can be shortened, the distance between the first spring fixing part (8) and the second spring fixing part (9) is shortened, the compression spring (1) is compressed, and the whole mechanism is shortened or extended; after the external force is removed, the compression spring (1) rebounds to drive the whole tension-compression elastic mechanism to recover to the natural length.
The deformation degree of whole mechanism is directly proportional with the size of applying external force, no matter external force is tensile force or compressive force, transmits to only compressive force on compression spring (1), that is to say compression spring (1) only produces compression deformation, can make whole mechanism extension or shorten.
Whole mechanism is because in tensile or compression process spring fixed part one (8) with spring fixed part two (9) and endotheca pipe rectangular shape hole (6) with the restriction of overcoat pipe rectangular shape hole (7), interior sleeve pipe (2) with outer tube (3) can only be followed rectangular shape hole and moved towards relative movement, guarantee the stability of whole mechanism.
The strip-shaped holes can be designed into different linear shapes, and the trends of the strip-shaped holes can be various, so that the mechanism can rotate to a certain degree in the telescopic process; the cross sections of the sleeve and the spring can be circular, oval, polygonal and the like; the spring can be positioned in the inner sleeve, or between the inner sleeve and the outer sleeve, or outside the outer sleeve; the force bearing part and the spring fixing part can also be designed into different forms. These are all suitable designs for different application environments.
Compared with the prior art, the utility model discloses use a compression spring and constitute one with two sleeve pipes and corresponding part and draw and press elastic mechanism, need not have many extension spring or compression spring in the design, simple structure, stability is good, can adjust according to different application environment, and application range is extensive.
Drawings
Fig. 1 is a schematic diagram of a natural state structure in the present invention
Fig. 2 is a schematic diagram of a stretching state structure in the present invention
Fig. 3 is a schematic view of a compression state structure in the present invention
FIG. 4 is a schematic view of the design structure of the present invention in which the inner and outer sleeves can rotate relatively
Fig. 5 is a schematic diagram of a stretching state structure of the inner and outer sleeves of the present invention which can be designed to rotate relatively
Fig. 6 is a schematic view of a compression state structure of the inner and outer sleeves of the present invention which can be designed to rotate relatively
In the figure: 1 compressing the spring; 2, inner sleeve; 3, outer sleeve; 4, inner sleeve bearing part; 5, a bearing part of the outer sleeve; 6, sleeving a long-strip-shaped hole in the inner sleeve; 7, sleeving a long-strip-shaped hole on the outer sleeve; 8, a first spring fixing part; 9 spring fixing part two.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The first embodiment is as follows:
referring to fig. 2, in the present invention, a stretching state: when the whole mechanism bears tensile force, the inner sleeve (2) is pulled out of the outer sleeve (3) under the pulling of the inner sleeve force bearing part (4), and one end, far away from the inner sleeve force bearing part (4), of the inner sleeve long-strip-shaped hole (6) pulls the spring fixing part II (9) to move in the same direction with the inner sleeve (2); one end of the outer sleeve long strip-shaped hole (7) far away from the outer sleeve force bearing part (5) prevents the first spring fixing part (8) from moving along with the inner sleeve (2); the distance between the first spring fixing part (8) and the second spring fixing part (9) is shortened, the compression spring (1) is compressed, and the whole mechanism length is increased and stretched.
After the external stretching force is removed, the compression spring (1) rebounds, the distance between the first spring fixing part (8) and the second spring fixing part (9) is recovered to the state before the whole mechanism is stretched, the inner sleeve (2) and the outer sleeve (3) are driven to return to the initial positions, and the whole mechanism is recovered to the natural state.
Example 2:
referring to fig. 3, in the present invention, a compression state: when the whole mechanism bears a compression force, the inner sleeve (2) is further inserted into the outer sleeve (3) under the pushing of the inner sleeve force bearing part (4), and one end, close to the inner sleeve force bearing part (4), of the inner sleeve elongated hole (6) pushes the first spring fixing part (8) to move in the same direction as the inner sleeve (2); one end of the outer sleeve elongated hole (7) close to the outer sleeve force bearing part (5) prevents the second spring fixing part (9) from moving along with the inner sleeve (2); the distance between the first spring fixing part (8) and the second spring fixing part (9) is shortened, the compression spring (1) is compressed, and the whole mechanism length is shortened and compressed at the moment.
After the external compression force is removed, the compression spring (1) rebounds, the distance between the first spring fixing part (8) and the second spring fixing part (9) is recovered to the state before the whole mechanism is compressed, the inner sleeve (2) and the outer sleeve (3) are driven to return to the initial positions, and the whole mechanism is recovered to the natural state.
Example 3:
referring to fig. 4, the utility model provides an inner and outer sleeve pipe rotatable design relatively: when the whole mechanism bears external tension or compression force and relative rotation between the inner sleeve (2) and the outer sleeve (3) is required, the elongated hole can be designed to be in a form which is not parallel to the sleeve axis.
Referring to fig. 5, during the stretching process of the mechanism, the first spring fixing part (8) and the outer sleeve (3) do not generate relative displacement; in the process that the inner sleeve (2) is drawn out from the outer sleeve (3), the spring fixing part II (9) can only move along the direction of the outer sleeve long-strip-shaped hole (7) under the pulling of one end, far away from the inner sleeve force bearing part (4), of the inner sleeve long-strip-shaped hole (6), and because the direction and the outline of the inner sleeve long-strip-shaped hole (6) and the outer sleeve long-strip-shaped hole (7) are consistent, the inner sleeve (2) can rotate relatively to the outer sleeve (3) in the drawing process.
Referring to fig. 6, in the compression process of the mechanism, the second spring fixing part (9) and the outer sleeve (3) do not generate relative displacement, when the inner sleeve (2) is further inserted into the outer sleeve (3), the first spring fixing part (8) can only move according to the trend of the outer sleeve long-strip-shaped hole (7) under the pushing of one end, close to the inner sleeve force bearing part (4), of the inner sleeve long-strip-shaped hole (6), and because the trend and the outline of the inner sleeve long-strip-shaped hole (6) and the outer sleeve long-strip-shaped hole (7) are consistent, the inner sleeve (2) can rotate relatively to the outer sleeve (3) in the further insertion process.
The embodiments described above are intended to facilitate one of ordinary skill in the art in understanding and using the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, such as: changing the shape of the sleeve and the spring, changing the relative position of the spring and the sleeve, changing the shape and the running of the elongated hole, changing the design of the force-bearing part, etc., and applying the general principles described herein to other embodiments without the need for creative work. Therefore, the present invention is not limited to the embodiments herein, and those skilled in the art should make improvements and modifications to the present invention according to the disclosure of the present invention within the protection scope of the present invention.
Claims (6)
1. The utility model provides a tension-compression elastic mechanism, mainly includes compression spring (1), interior sleeve pipe (2), outer tube (3), its characterized in that the one end of interior sleeve pipe (2) sets up interior sleeve pipe load part (4) the one end of outer tube (3) sets up outer tube load part (5), interior sleeve pipe load part (4) with outer tube load part (5) are located whole mechanism both ends.
2. A tension-compression spring mechanism as claimed in claim 1, characterized in that the sleeve wall of the inner sleeve (2) has an inner sleeve slot (6) of uniform profile and size and opposite to the sleeve wall, and the sleeve wall of the outer sleeve (3) has an outer sleeve slot (7) of uniform profile and size and opposite to the sleeve wall.
3. A tension-compression spring mechanism as claimed in claim 2 wherein said inner sleeve slot (6) and said outer sleeve slot (7) are of uniform profile and length, and have a length equal to or less than the length of said compression spring (1).
4. A tension-compression spring mechanism according to claim 1, characterized in that the inner sleeve (2) is located inside the outer sleeve (3), the inner sleeve (2) being movable inside the outer sleeve (3).
5. A tension-compression spring mechanism as claimed in claim 2 wherein the compression spring (1) is held captive by a first spring retaining member (8) and a second spring retaining member (9).
6. A tension-compression spring mechanism as claimed in claim 5, wherein said first spring fixing member (8) passes through said inner sleeve elongated hole (6) and said outer sleeve elongated hole (7) to block and fix one end of said compression spring (1), and said second spring fixing member (9) passes through said inner sleeve elongated hole (6) and said outer sleeve elongated hole (7) to block and fix the other end of said compression spring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020789689.1U CN212959623U (en) | 2020-05-15 | 2020-05-15 | Tension-compression elastic mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020789689.1U CN212959623U (en) | 2020-05-15 | 2020-05-15 | Tension-compression elastic mechanism |
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| CN212959623U true CN212959623U (en) | 2021-04-13 |
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| CN202020789689.1U Active CN212959623U (en) | 2020-05-15 | 2020-05-15 | Tension-compression elastic mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412236A (en) * | 2020-05-15 | 2020-07-14 | 天津安安科技有限公司 | Tension-compression elastic mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412236A (en) * | 2020-05-15 | 2020-07-14 | 天津安安科技有限公司 | Tension-compression elastic mechanism |
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Effective date of registration: 20211202 Address after: 300141 No. 310, gate 5, building 9, tianxingli, Kunming Road, Heping District, Tianjin Patentee after: An Litao Address before: 300143 room 1, Chenwei Road, Hongshunli street, Hebei District, Tianjin Patentee before: TIANJIN ANAN TECHNOLOGY Co.,Ltd. |