CN218134694U

CN218134694U - Spring bending tool

Info

Publication number: CN218134694U
Application number: CN202222618537.7U
Authority: CN
Inventors: 王炳坤
Original assignee: Dongguan Aimu Bedroom Supplies Co Ltd
Current assignee: Dongguan Aimu Bedroom Supplies Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2022-12-27
Anticipated expiration: 2032-09-29

Abstract

The utility model discloses a spring instrument of bending, spring instrument of bending include inner wheel axle, handle, and the handle rotates around the inner wheel axle, is provided with bending structure on the handle lateral wall, and bending structure can be provided with fretwork portion on the handle axial displacement, the edge of fretwork portion is provided with a plurality of first bellyings side by side, and is adjacent be provided with first depressed part between the first bellyings, and the bending structure lateral wall is provided with joint portion, and joint portion card goes into in the first depressed part. The utility model discloses in, the S type spring is fixed on the inner wheel axle, adjusts the axial position of bending structure on the handle according to the dimensional requirement to with the bending structure joint in first depressed part, turning handle, the tip atress of S type spring takes place to buckle, promotes the arm of force of spring bending process through the handle, the operation of being convenient for can process the S type spring tip of multiple shape, size, the commonality is strong.

Description

Spring bending tool

Technical Field

The utility model relates to a spring processing field, in particular to spring instrument of bending.

Background

The two end parts of the existing S-shaped spring are of straight structures, and are easy to disengage from the fixing part after being fixed on the sofa wooden frame, so that the end parts of the spring need to be bent, the spring with the bent end parts can be hung on the sofa wooden frame, the S-shaped spring is prevented from accidentally falling off, and the safety of the sofa is ensured. In the related art, one bending tool can only machine the spring end part in the same bending position and bending shape, and the universality is poor. When the spring end of multiple overall dimension is processed, need adopt multiple instrument of bending to process, promote the processing cost.

SUMMERY OF THE UTILITY MODEL

For solving at least one among the above-mentioned technical problem, the utility model provides a spring instrument of bending, the technical scheme who adopts as follows:

the utility model provides a spring bending tool, which comprises an inner wheel shaft and a handle, wherein the end part of an S-shaped spring can be fixed on the inner wheel shaft; the handle with interior pivot swivelling joint, the handle centers on interior shaft rotates, be provided with bending structure on the handle lateral wall, bending structure can axial displacement on the handle, be provided with fretwork portion on the handle, bending structure extends to in the fretwork portion the handle outside, the edge of fretwork portion is provided with a plurality of first bellyings side by side, and is adjacent be provided with first depressed part between the first bellyings, the bending structure lateral wall is provided with joint portion, joint portion card is gone into in the first depressed part, in order to inject bending structure's axial position.

The embodiment of the utility model discloses a following beneficial effect has at least: the utility model discloses in, including the epaxial with S type spring fastening, the tip of S type spring is from the epaxial outside extension of inner wheel, adjust the axial position of bending structure on the handle according to dimensional requirement, and carry out the axial position location in the first depressed part of relevant position with the bending structure joint, turning handle, bending structure is close to the tip of butt S type spring gradually, when continuing turning handle, the tip atress of S type spring takes place to buckle, promote the arm of force of spring bending process through the handle, the operation of being convenient for, can process multiple shape, the S type spring tip of size, therefore, the commonality is strong.

The utility model discloses an in some embodiments, bending structure cavity, the first end of joint portion is in the bending structure, the second end of joint portion can block into in the first depressed part, be provided with the drive division in the bending structure, the drive division includes lever structure, spring, button, lever structure with joint portion connects, the button extends to bending structure's outside, the button is used for driving lever structure, makes joint portion breaks away from first depressed part.

The utility model discloses an in some embodiments, joint portion cavity, lever structure includes the card needle, the first end of card needle is in the joint portion, the second end of card needle extends the scope of joint portion, the middle part of card needle with the lateral wall of joint portion rotates to be connected, the first end of spring with the first end of card needle is connected, the second end of spring with the key-press connection, the inside cooperation profile that is provided with of bending structure, be provided with a plurality of second bellyings on the cooperation profile side by side, it is adjacent be provided with the second depressed part between the second bellyings, the card needle can be gone into in the second depressed part.

The utility model discloses an in some embodiments, lever structure includes support, connecting rod, the support set up in on bending structure's the inner wall, the support with the middle part of connecting rod is articulated, the first end of spring is connected the first end of connecting rod, the second end of spring is connected bending structure's inner wall, the button with the first end of connecting rod is connected, joint portion with the second end of connecting rod is connected.

In some embodiments of the present invention, the outer wheel ring is sleeved on the inner wheel shaft, the inner wheel shaft is rotatably connected with the outer wheel ring, and the handle is disposed on the outer wheel ring.

In some embodiments of the present invention, the inner wheel shaft and the outer wheel ring are connected by a ball.

The utility model discloses an in some embodiments, be provided with locating part on the inner wheel axle, locating part sets up at least two, is provided with the gap between each locating part, and S type spring can put into in the gap.

The utility model discloses an in some embodiments, the spring instrument of bending still includes the protruding template, the inner wheel axle set up in on the protruding template.

The utility model discloses an in some embodiments, the spring instrument of bending still includes frame construction, protruding template set up in frame construction is last, frame construction includes the stabilizer blade, the stabilizer blade sets up in subaerial.

In some embodiments of the present invention, the frame structure is provided with a beam, and the beam is connected to the support legs.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a spring bending tool according to the present invention;

fig. 2 is a schematic structural view of a handle of a bending tool according to the present invention;

fig. 3 is a cross-sectional view of a bending structure in a first embodiment of a bending tool according to the present invention;

fig. 4 is a sectional view of a bending structure according to a second embodiment of the bending tool of the present invention.

Reference numerals:

101. a positioning member; 102. a convex plate; 103. a frame structure; 104. a support leg; 105. a cross beam; 106. an outer wheel ring;

201. a handle; 202. a bending structure; 203. a hollow-out section; 204. a first boss portion; 205. a first recess; 206. a clamping part; 207. a spring; 208. pressing a key;

301. clamping a needle; 302. a mating profile;

401. a support; 402. a connecting rod.

Detailed Description

This section will describe in detail embodiments of the invention in connection with fig. 1 to 4, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate an orientation or positional relationship based on that shown in the drawings, it is only for convenience of description and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. The features defined as "first" and "second" are used to distinguish feature names rather than having a special meaning, and further, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment of the utility model provides a spring instrument of bending, spring instrument of bending include inner wheel axle, handle 201. As shown in figure 1, the inner wheel shaft is fixedly arranged, and the end part of the S-shaped spring can be fixed on the inner wheel shaft, so that the S-shaped spring is prevented from rotating in the bending process, and the bending force is offset. Specifically, the inner wheel axle is arranged vertically.

In some examples, the inner axle is provided with a positioning part 101, the positioning part 101 extends outwards from the end of the inner axle, the end of the S-shaped spring is connected with the inner axle through the positioning part 101, further, the inner axle is fixedly connected with the positioning part 101, a gap is arranged between the positioning parts 101, the gap penetrates through two opposite sides of the side wall of the inner axle, the end of the S-shaped spring can be inserted into the gap and extends out of the range of the inner axle from the opposite sides of the inner axle, and when the S-shaped spring has a tendency to rotate relative to the positioning part 101, the end of the S-shaped spring abuts against the edge of the gap to limit the rotation of the S-shaped spring. Or, the inner wheel axle and the positioning part 101 are integrally formed, a gap is arranged at the end part of the inner wheel axle, and the positioning part 101 is formed by solid structures at two sides of the gap.

Specifically, the number of the positioning parts 101 is at least two, and when the positioning parts 101 are provided in a plurality, a gap is formed between two adjacent positioning parts 101, and the gaps are communicated with each other in the middle of the positioning parts 101, so that the bending work of the end part of the spring can be conveniently performed by workers at different positions.

In some examples, the locating member 101 is at the top end of the inner axle with the end of the S-spring being placed into the slot from the top end of the inner axle, or the locating member 101 is at the bottom end of the inner axle with the end of the S-spring being placed into the slot from the bottom end of the inner axle.

In some examples, the spring bending tool further comprises a male plate 102, the inner wheel shaft being arranged on the male plate 102, the bottom end of the inner wheel shaft being connected with the protruding part of the male plate 102 when the positioning part 101 is at the top end of the inner wheel shaft; when the positioning part 101 is at the bottom end of the inner wheel axle, the top end of the inner wheel axle is connected with the protruding part of the male plate 102, at which time the protruding direction of the male plate 102 is downward. The convex plate 102 is used for connecting a fixing structure, so that the inner wheel shaft is positioned on the fixing structure, and further, the convex plate 102 enables the working position of the inner wheel shaft to have a certain distance from the fixing structure, so that the end part of the S-shaped spring can be conveniently bent at the inner wheel shaft.

In some examples, the spring bending tool further comprises a frame structure 103, i.e. the fixation structure comprises the frame structure 103. The frame structure 103 comprises a deck, which is arranged horizontally, to which the cam plate 102 is connected, together with the inner wheel axle, for positioning the inner wheel axle. When the positioning part 101 is positioned at the top end of the inner wheel shaft, the convex plate 102 is arranged at the top of the panel, the height of the inner wheel shaft is greater than that of the panel, and the end part of the S-shaped spring is bent at the top of the panel; when the positioning part 101 is at the bottom end of the inner wheel axle, the convex plate 102 is arranged at the bottom of the panel, the height of the inner wheel axle is less than that of the panel, and the end of the S-shaped spring is bent at the bottom of the panel. Further, a first mounting hole is formed in the edge of the convex plate 102, a second mounting hole is formed in the panel, and a fastener can penetrate through the first mounting hole and the second mounting hole, so that the convex plate 102 is fixed on the panel. Specifically, in order to make the panel stable on the ground and at the same time raise the height of the panel to enable the worker to perform standing operation, the bottom of the panel is provided with the support legs 104, and the support legs 104 are placed on the ground.

In some examples, in order to ensure the strength of the frame structure 103 and enhance the durability of the spring bending tool, a cross beam 105 is disposed on the frame structure 103, and the cross beam 105 connects the legs 104 to prevent the legs 104 from being bent under force. In particular, the cross beam 105 is disposed between adjacent legs 104.

In some examples, an outer rim 106 is disposed on the inner axle, the outer rim 106 is disposed on the inner axle, and the inner axle is rotatably connected to the outer rim 106. The outer rim 106 is able to rotate on the inner wheel axle due to the relative stationarity between the inner wheel axle and the frame structure 103. Further, the outer rim 106 is provided with a handle 201, and when the outer rim 106 rotates, the handle 201 rotates together around the inner shaft. It will be appreciated that the ends of the S-spring are defined on the inner axle and that during rotation of the handle 201, the handle 201 rotates relative to the ends of the S-spring.

In some examples, to ensure smooth relative rotation between the inner axle and the outer rim 106, a ball bearing connection is used between the inner axle and the outer rim 106 to replace sliding friction with rolling friction, thereby reducing the resistance to the worker when rotating the handle 201.

As shown in FIG. 2, a bending structure 202 is arranged on the side wall of the handle 201, the bending structure 202 protrudes out of the side wall of the handle 201, the bending structure 202 rotates around the inner axle along with the handle 201, and the end of the S-shaped spring protrudes out of the side wall of the inner axle, so that the bending structure 202 can be abutted against the end of the S-shaped spring during the rotation of the bending structure 202. On the one hand, the end of the S-spring is limited by the slit edge, and on the other hand, the bending structure 202 continues to rotate in the abutting state. Therefore, the end of the S-shaped spring is stressed to bend, so that the straight end of the S-shaped spring is converted into an arc shape. When the end part of the arc-shaped S-shaped spring is inserted into the sofa frame, the trend that the S-shaped spring is separated from the sofa frame is counteracted by the arc-shaped structure, and the overall structure of the sofa is prevented from being damaged.

Furthermore, in the manufacturing process of various sofas, S-shaped springs with various sizes are required to be used, the lengths of the end parts of the S-shaped springs are different, and meanwhile, the bending positions for avoiding the S-shaped springs from being accidentally separated are different. It will be appreciated that a single location of the bending structure 202 does not satisfy multiple bending forms, and therefore, the bending structure 202 can be axially moved on the handle 201, and by the axial movement, the distance from the bending structure 202 to the inner wheel axle can be changed, so that the end of the S-shaped spring can be bent at different locations as required.

Specifically, after the bending structure 202 axially moves to the target position, in order to ensure the stability of the bending process and avoid that the bending structure 202 still can axially move in the bending process, the handle 201 is provided with a hollow portion 203. The bending structure 202 extends from the inside of the hollow portion 203 to the outside of the handle 201, the part extending out of the handle 201 abuts against the end portion of the S-shaped spring, the edge of the hollow portion 203 is provided with a plurality of first protruding portions 204 in parallel, a first concave portion 205 is arranged between every two adjacent first protruding portions 204, the side wall of the bending structure 202 is provided with a clamping portion 206, when the clamping portion 206 is clamped into the first concave portion 205, the axial position of the bending structure 202 is stable, and therefore bending is conducted at the preset position of the end portion of the S-shaped spring.

In some examples, to facilitate movement and locking of the bending structure 202, the bending structure 202 is hollow, a first end of the snap-in portion 206 is within the bending structure 202, and a second end of the snap-in portion 206 extends out of the bending structure 202 and is snapped into the first recess 205. When the second end of the clamping portion 206 passes through the first recesses 205 in sequence, the second end of the clamping portion 206 needs to pass over the first protrusions 204 in sequence. It can be understood that the distance from the surface of the first recess 205 to the sidewall of the bending structure 202 is greater than the distance from the surface of the first protrusion 204 to the sidewall of the bending structure 202, and therefore, the length of the second end of the clamping portion 206 protruding from the bending structure 202 can be adjusted according to the position of the bending structure 202. A driving portion is arranged in the bending structure 202, the driving portion comprises a lever structure, a spring 207 and a key 208, the lever structure is connected with the clamping portion 206, and the spring 207 and the lever structure jointly control the state of the clamping portion 206. When the clip portion 206 is in the positioning state, the spring 207 causes the clip portion 206 to press against the first recess 205, so that the second end of the clip portion 206 is positioned in the first recess 205; when joint portion 206 is in portable state, the location of joint portion 206 is relieved, and first bellying 204 can be crossed to the second end of joint portion 206, and when the second end of joint portion 206 reachd the target location, when bending structure 202 reachd the target location promptly, joint portion 206 is fixed a position once more, and bending structure 202 locks in corresponding position department, guarantees the quality of S type spring processing of bending. The button 208 extends from the inside of the bending structure 202 to the range of the bending structure 202, and the button 208 is used for driving the lever structure, thereby switching the state of the clamping part 206. Specifically, when the key 208 moves toward the inside of the bending structure 202, the clamping portion 206 is in a movable state; when the key 208 is in the free state, the card portion 206 is in the positioned state.

As shown in fig. 3, in the first embodiment, the clamping portion 206 is hollow, the lever structure includes a clamping pin 301, the clamping pin 301 can rotate on the clamping portion 206, specifically, the middle portion of the clamping pin 301 is hinged to the side wall of the clamping portion 206, the first end of the clamping pin 301 is located in the clamping portion 206, the second end of the clamping pin 301 extends out of the range of the clamping portion 206, when the first end of the clamping pin 301 is subjected to the force of the spring 207, the first end of the clamping pin 301 is close to the second end of the clamping portion 206 through rotation, meanwhile, the second end of the clamping pin 301 is close to the first end of the clamping portion 206 through rotation, and at this time, the clamping pin 301 is inclined. The first end of the spring 207 is connected to the first end of the card pin 301, the second end of the spring 207 is connected to the button 208, and when the button 208 is pressed, the spring 207 transmits a force to the first end of the card pin 301, thereby tilting the card pin 301. Further, a matching profile 302 is arranged inside the bending structure 202, the matching profile 302 is arranged at the end of the second end of the clamping pin 301, a plurality of second protruding portions are arranged on the matching profile 302 in parallel, and a second recessed portion is arranged between every two adjacent second protruding portions. When the latch needle 301 is tilted, the second end of the latch needle 301 is disengaged from the mating profile 302; when the clip 301 is in the natural state, the second end of the clip 301 is clipped into the second recess.

The key 208 protrudes out of the side wall of the bending structure 202 and is movably connected with the bending structure 202, when the position of the bending structure 202 needs to be adjusted, the key 208 is pressed, the part of the key 208, which is sunk into the bending structure 202, is enlarged, so that the card needle 301 is inclined, the inclined card needle 301 is separated from the matching profile, namely the locking of the clamping part 206 is released, at the moment, the clamping part 206 can overcome the elastic force of the spring 207, pass through the first protruding part 204 and is switched to the different first recessed parts 205 by pushing the bending structure 202; when the bending structure 202 needs to be positioned, the key 208 is released to restore the card pin 301 to the natural state, the second end of the card pin 301 is clamped into the second concave portion to lock the position of the clamping portion 206, and at this time, the bending structure 202 is pushed to make the clamping portion 206 difficult to separate from the current first concave portion 205, so that stable bending work is performed.

As shown in fig. 4, in the second embodiment, the lever structure includes a bracket 401 and a link 402, the bracket 401 is disposed on the inner wall of the bending structure 202, the link 402 can rotate on the bracket 401, and further, the middle portion of the link 402 is hinged to the bracket 401. A first end of the link 402 is connected to the button 208 and a second end of the link 402 is connected to the snap 206. When the button 208 is pressed, the first end of the link 402 moves in a direction close to the second end of the engaging portion 206 by rotating, and at the same time, the second end of the link 402 drives the engaging portion 206 to disengage from the first recess 205 by rotating. The first end of the spring 207 is connected with the first end of the connecting rod 402, the second end of the spring 207 is connected with the inner wall of the bending structure 202, the spring 207 and the button 208 are located on two opposite sides of the connecting rod 402, when the spring 207 is in a natural state, the spring 207 pushes the clamping portion 206 to be located in the first concave portion 205 through the connecting rod 402, and when the spring 207 is in a compressed state, the clamping portion 206 is separated from the first concave portion 205.

The key 208 protrudes out of the side wall of the bending structure 202 and is movably connected with the bending structure 202, when the position of the bending structure 202 needs to be adjusted, the key 208 is pressed, the part of the key 208, which is sunk into the bending structure 202, is enlarged, it can be understood that the spring 207 is stressed and compressed, the clamping portion 206 is in a movable state, and at the moment, the clamping portion 206 can cross the first protruding portion 204 and is switched to a different first recessed portion 205 by pushing the bending structure 202; when the bending structure 202 needs to be positioned, the key 208 is released, the spring 207 is restored to the length of the natural state, the clamping portion 206 enters the corresponding first recess portion 205 to lock the position of the clamping portion 206, and at this time, the clamping portion 206 of the bending structure 202 is pushed to hardly overcome the force of the spring 207 so that the clamping portion 206 is separated from the current first recess portion 205, and then stable bending work is performed.

In the description herein, references to the terms "one embodiment," "some examples," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like, if any, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A spring bending tool, comprising:

the end part of the S-shaped spring can be fixed on the inner wheel shaft;

handle (201), handle (201) with interior pivot swivelling joint, handle (201) center on interior shaft rotates, be provided with bending structure (202) on handle (201) lateral wall, bending structure (202) can axial displacement on handle (201), be provided with fretwork portion (203) on handle (201), bending structure (202) extend to in following fretwork portion (203) handle (201) outside, the edge of fretwork portion (203) is provided with a plurality of first bellyings (204) side by side, and is adjacent be provided with first depressed part (205) between first bellyings (204), bending structure (202) lateral wall is provided with joint portion (206), joint portion (206) card is gone into in first depressed part (205), in order to prescribe a limit to the limit the axial position of bending structure (202).

2. The spring bending tool according to claim 1, wherein the bending structure (202) is hollow, a first end of the clamping portion (206) is located in the bending structure (202), a second end of the clamping portion (206) can be clamped into the first recess portion (205), a driving portion is arranged in the bending structure (202), the driving portion comprises a lever structure, a spring (207) and a key (208), the lever structure is connected with the clamping portion (206), the key (208) extends to the outside of the bending structure (202), and the key (208) is used for driving the lever structure to enable the clamping portion (206) to be separated from the first recess portion (205).

3. The spring bending tool according to claim 2, wherein the clamping portion (206) is hollow, the lever structure comprises a clamping pin (301), a first end of the clamping pin (301) is located in the clamping portion (206), a second end of the clamping pin (301) extends out of the range of the clamping portion (206), the middle of the clamping pin (301) is rotatably connected with the side wall of the clamping portion (206), a first end of the spring (207) is connected with the first end of the clamping pin (301), a second end of the spring (207) is connected with the key (208), a matching profile (302) is arranged inside the bending structure (202), a plurality of second protruding portions are arranged on the matching profile (302) in parallel, a second recessed portion is arranged between the second protruding portions, and the clamping pin (301) can be clamped into the second recessed portion.

4. The spring bending tool according to claim 2, wherein the lever structure comprises a bracket (401) and a connecting rod (402), the bracket (401) is arranged on the inner wall of the bending structure (202), the bracket (401) is hinged to the middle of the connecting rod (402), a first end of the spring (207) is connected to a first end of the connecting rod (402), a second end of the spring (207) is connected to the inner wall of the bending structure (202), the key (208) is connected to the first end of the connecting rod (402), and the clamping portion (206) is connected to the second end of the connecting rod (402).

5. The spring bending tool according to claim 1, wherein an outer rim (106) is sleeved on the inner wheel shaft, the inner wheel shaft is rotatably connected with the outer rim (106), and the handle (201) is arranged on the outer rim (106).

6. The spring bending tool of claim 5, wherein the inner hub is ball-connected to the outer rim (106).

7. The spring bending tool according to claim 1, wherein positioning members (101) are arranged on the inner wheel shaft, at least two positioning members (101) are arranged, a gap is arranged between each positioning member (101), and an S-shaped spring can be placed in the gap.

8. The spring bending tool of claim 1, further comprising a cam plate (102), wherein the inner axle is disposed on the cam plate (102).

9. The spring bending tool according to claim 8, further comprising a frame structure (103), wherein the male plate (102) is disposed on the frame structure (103), wherein the frame structure (103) comprises a foot (104), and wherein the foot (104) is disposed on the ground.

10. Spring bending tool according to claim 9, wherein a cross beam (105) is arranged on the frame structure (103), said cross beam (105) connecting the legs (104).