CN218652862U - Jaw synchronous telescopic mechanism for bell head clamping counterweight block - Google Patents
Jaw synchronous telescopic mechanism for bell head clamping counterweight block Download PDFInfo
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- CN218652862U CN218652862U CN202222819572.5U CN202222819572U CN218652862U CN 218652862 U CN218652862 U CN 218652862U CN 202222819572 U CN202222819572 U CN 202222819572U CN 218652862 U CN218652862 U CN 218652862U
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Abstract
The application discloses bell head joint jack catch synchronous telescoping mechanism for balancing weight, include with counter weight seat sliding connection press the post, press the one end of post for pressing the end, the counter weight seat is provided with and supplies to press the gliding slip chamber of post, the one end in slip chamber is provided with and supplies to press the opening that the end exposes, be provided with first spring in the slip chamber, first spring exposes the opening for pressing the end and provides elasticity, the side of pressing the post is provided with first annular fitting surface and second annular fitting surface, the diameter of first annular fitting surface is less than the diameter of second annular fitting surface, the counter weight seat is provided with a plurality of counter weight storehouses, counter weight seat sliding connection has a plurality of jack catches, the jack catch stretches into the counter weight storehouse, the jack catch is close to the one end of pressing the post and moves along pressing the post side. Through pressing down and pressing the post, the jack catch is close to the one end of pressing the post and moves along pressing the post side, realizes that a plurality of jack catches are synchronous flexible, has shortened the dismouting time of balancing weight.
Description
Technical Field
The utility model relates to a body-building apparatus field especially relates to a first joint of bell balancing weight is with synchronous telescopic machanism of jack catch.
Background
The dumbbell is a common fitness apparatus. The muscle training device is used for muscle strength training and muscle compound action training. The dumbbell can be held by hands for patients with low muscle strength caused by paralysis, pain, long-term inactivity and the like, and the weight of the dumbbell can be used for performing resistance active exercise and training the muscle strength.
The weight of the existing dumbbell is adjusted by changing the number and the size of the dumbbell pieces which are inserted and fixed at the two ends of the dumbbell rod. When the weight of the dumbbell is adjusted, the fixing nuts screwed at the two ends of the dumbbell rod need to be unscrewed, then the weight plates are increased or decreased, and then the fixing nuts are screwed on the dumbbell rod to fix the weight plates, so that the operation is complicated. The step of adjusting weight can be simplified by changing the structure of the bell head, the bell head is provided with a counterweight seat, the counterweight seat is provided with a counterweight bin, and a counterweight block in the counterweight bin is clamped by the telescopic claws. The bell head structure will typically include a plurality of weight cartridges to enhance the range of weight changes of the bell head. In order to further shorten the time for disassembling and assembling the counterweight block, how to drive a plurality of clamping jaws on the same bell head to synchronously stretch and retract becomes a research direction.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a jaw synchronous telescoping mechanism for a bell head clamping counterweight block, which realizes jaw synchronous telescoping.
In a first aspect, the utility model discloses a synchronous telescopic machanism of jack catch for bell head joint balancing weight, include with counter weight seat sliding connection press the post, the one end of pressing the post is for pressing the end, the counter weight seat is provided with the confession press the gliding slip chamber of post, the one end in slip chamber is provided with the confession press the opening that the end exposes, the slip intracavity is provided with first spring, first spring does press the end to expose the opening provides elasticity, the side of pressing the post is provided with first annular fitting surface and second annular fitting surface, the diameter of first annular fitting surface is less than the diameter of second annular fitting surface, the counter weight seat is provided with a plurality of counter weight storehouses, counter weight seat sliding connection has a plurality of jack catches, the jack catch stretches into the counter weight storehouse, the jack catch is close to press the one end of post along press the motion of post side.
According to the technical scheme provided by the embodiment of the application, the position of the pressing column opposite to the clamping jaw is changed by pressing the pressing column, when the clamping jaw is opposite to the first annular matching surface, the clamping jaw is positioned at the position close to the central shaft of the pressing column, one end of the clamping jaw far away from the pressing column is separated from the counterweight cabin, the clamping jaw cannot clamp the counterweight block positioned in the counterweight cabin, and the counterweight block can freely enter and exit the counterweight cabin; when the jack catch is just facing to the second annular mating surface, the jack catch is in the position of keeping away from the center pin of pressing the post, and the jack catch is kept away from the one end of pressing the post and is stretched into in the counter weight storehouse, and the jack catch blocks the balancing weight that is located the counter weight storehouse, and the balancing weight can't break away from the counter weight storehouse, presses the post through pressing, and the jack catch is close to the one end of pressing the post and moves along pressing post side, realizes that a plurality of jack catches are synchronous flexible, has shortened the dismouting time of balancing weight.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
FIG. 1 is a schematic structural view of a dumbbell having a jaw synchronous telescoping mechanism for a bell head clamped weight block according to an embodiment of the present invention;
FIG. 2 is a front view of a bell head with a jaw synchronous retracting mechanism for a bell head clamping counterweight block according to an embodiment of the present invention;
FIG. 3 is a perspective view of a bell head with a jaw synchronous telescoping mechanism for a bell head clamping counter weight according to an embodiment of the present invention;
FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;
fig. 5 is a schematic structural view of the pressing column of the jaw synchronous telescoping mechanism for bell head clamping counterweight block of the embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 2 to 5, the jaw synchronous telescoping mechanism for a counterweight seat clamping counterweight block of the present invention includes a pressing column 410 slidably connected to a counterweight seat 240, one end of the pressing column 410 is a pressing end 411, the counterweight seat 240 is provided with a sliding cavity 242 for the pressing column 410 to slide, one end of the sliding cavity 242 is provided with an opening 2421 for the pressing end 411 to expose, a first spring 412 is disposed in the sliding cavity 242, the first spring 412 provides an elastic force for the pressing end 411 to expose the opening 2421, a side surface of the pressing column 410 is provided with a first annular fitting surface 4131 and a second annular fitting surface 4141, the diameter of the first annular fitting surface 4131 is smaller than that of the second annular fitting surface 4141, the counterweight seat 240 is provided with a plurality of counterweight bins 241, the counterweight seat 240 is slidably connected to a plurality of jaws 510, the jaws 510 extend into the counterweight bins 241, and one end of the jaws 510 close to the pressing column 410 moves along the side surface of the pressing column 410.
The utility model discloses an in the embodiment, press post and counter weight seat sliding connection, can but not be limited to press the post for the slip direction of counter weight seat and the terminal surface of counter weight seat is perpendicular. The counter weight seat is provided with and supplies to press the gliding slip chamber of post, and the slip chamber can restrict and press the slip range of post, avoids pressing the post and breaks away from the counter weight seat. Referring to fig. 1, one end of the pressing rod is a pressing end, and the pressing end is exposed out of the weight seat from the opening, but not limited to the pressing end is located on the side of the bell head 200 facing away from the bell bar 100, so as to facilitate the pressing by the user, and avoid the pressing end interfering with the user holding the bell bar 100. The sliding cavity is internally provided with a first spring, the first spring provides elastic force for the pressing end to expose the opening, and when a user presses the pressing column, the pressing end can generate deformation to store energy when withdrawing the opening. Unclamp at the user and press the post, the energy of first spring release storage, make to press the end and stretch out from the opening, convenient to use person presses, and simultaneously, when pressing the end and not receiving external force to press, first spring makes second ring-shaped fitting surface just to the jack catch, makes the jack catch keep stretching into the position in counter weight storehouse, the jack catch blocks the balancing weight in the counter weight storehouse, avoid using the dumbbell to carry out the in-process of muscle training, the jack catch is withdrawed and is leaded to the balancing weight to break away from the counter weight storehouse, the security of muscle training has been guaranteed.
The side surface of the pressing column is provided with a first annular matching surface and a second annular matching surface, the diameter of the first annular matching surface is smaller than that of the second annular matching surface, and the end, close to the pressing column, of the clamping jaw moves along the side surface of the pressing column. Namely, the pressing column slides relative to the counterweight seat by pressing the pressing column, so that the position of the pressing column facing the claw can be changed. The claw can change the distance from the central shaft of the pressing column along with the movement of the pressing column. When the clamping jaw is over against the first annular matching surface, the clamping jaw is positioned at a position close to the central shaft of the pressing column, one end of the clamping jaw, far away from the pressing column, is separated from the counterweight cabin, the clamping jaw cannot clamp a counterweight block positioned in the counterweight cabin, and the counterweight block can freely enter and exit the counterweight cabin; when the clamping jaw is over against the second annular matching surface, the clamping jaw is located at a position far away from the central shaft of the pressing column, one end of the clamping jaw far away from the pressing column extends into the counterweight cabin, the clamping jaw clamps the counterweight block located in the counterweight cabin, and the counterweight block cannot be separated from the counterweight cabin. Through pressing down and pressing the post, the jack catch is close to the one end of pressing the post and moves along pressing the post side, realizes that a plurality of jack catches are synchronous flexible, has shortened the dismouting time of balancing weight.
Further, a first stopping portion 2422 is disposed at one end of the sliding cavity 242 close to the opening 2421, a first annular protrusion 413 is disposed on a side surface of the pressing column 410, the first annular matching surface 4131 is a side surface of the first annular protrusion 413, the first stopping portion 2422 stops the first annular protrusion 413, a second stopping portion 2423 is disposed at one end of the sliding cavity 242 far from the opening 2421, and the second stopping portion 2423 stops the pressing column 410.
In the embodiment of the present invention, by providing the first annular protrusion, the first annular fitting surface can be formed, and the first stopper portion can stop the first annular protrusion, so as to prevent the pressing column from being separated from the sliding cavity from the side of the sliding cavity where the opening is provided. The second stopping portion stops the pressing column to prevent the pressing column from being separated from the sliding cavity from the side, which is not provided with the opening, of the sliding cavity. The second stopper may, but is not limited to, stop an end of the pressing post away from the opening. Simultaneously, the post is pressed to second backstop portion backstop, can play limiting displacement to the position that presses the end shrink to the slip chamber, avoids pressing the end and excessively contracts to the slip intracavity, leads to pressing the end and can't stretch out. Meanwhile, the first spring can be prevented from generating excessive deformation, and the service life of the first spring is prolonged.
Further, a side of the opening 2421 facing away from the sliding chamber 242 extends inward of the opening 2421 to form a first stopper 2422.
The utility model discloses an in the embodiment, the opening is inside to be extended to form first backstop portion to one side opening in slip chamber dorsad for one side of first backstop portion slip chamber can laminate with the counter weight seat surface, avoids forming unable clear dead angle between first backstop portion and the counter weight seat, also avoids the user to press the end when pressing, chuck user's finger.
Further, the inner wall of the sliding cavity 242 is bent towards the inside of the sliding cavity 242 to form a second stopper 2423.
The utility model discloses an in the embodiment, the sliding cavity inner wall is to the inside bending type of sliding cavity and is formed second backstop portion, rather than directly setting up second backstop portion at the sliding cavity inner wall, can reduce the weight of counter weight seat, reduction in production cost.
Further, a second annular protrusion 414 is disposed on a side surface of the pressing column 410, the second annular matching surface 4141 is a side surface of the second annular protrusion 414, the pressing column 410 is sleeved with the first spring 412, the first spring 412 is located on a side of the second annular protrusion 414 facing away from the opening 2421, an inner wall of the sliding cavity 242 is bent towards the inside of the sliding cavity 242 to form a third stopping portion 2424, and the first spring 412 is located between the third stopping portion 2424 and the second annular protrusion 414.
The utility model discloses an in the embodiment, through setting up the annular arch of second, can form second annular fitting surface to the annular arch of second can support the first spring of cup joint on pressing the post. First spring cup joints on pressing the post, presses the post and can support first spring, restricts the deformation direction of first spring, has improved the reliability of first spring. The inner wall of the sliding cavity is bent towards the inner part of the sliding cavity to form a third stopping part instead of directly arranging the third stopping part on the inner wall of the sliding cavity, so that the weight of the counterweight seat can be reduced, and the production cost is reduced. The third stopping portion is located on one side, back to the opening, of the second annular protrusion, the first spring is located between the third stopping portion and the second annular protrusion, and the third stopping portion can support the first spring. The third stopping part supports one end of the first spring, and the second annular protrusion supports the other end of the first spring, so that the deformation stability of the first spring is ensured.
Further, a circular truncated cone transition surface 415 is arranged between the first annular matching surface 4131 and the second annular matching surface 4141.
The utility model discloses an in the embodiment, be provided with the round platform transition surface between first annular fitting surface and the second annular fitting surface, slide for the counter weight seat when pressing the post, the jack catch is close to the one end of pressing the post along pressing the post side motion, can be but not limited to, the jack catch with press and be provided with the ball between the post, the ball is pasting to press post side roll, the realization is close to the one end of pressing the post along pressing post side motion. Through setting up the round platform transition face, when pressing the post and sliding for the counter weight seat, the one end of pressing the post can be more smooth and easy along pressing the motion of post side, avoids appearing the motion card pause. The circular arc surface is arranged at the joint of the first annular matching surface and the circular truncated cone transition surface, so that the clamping jaw can move more smoothly from being opposite to the first annular matching surface to being opposite to the circular truncated cone transition surface or from being opposite to the circular truncated cone transition surface to being opposite to the first annular matching surface by pressing the pressing column; the circular arc surface is arranged at the joint of the second annular matching surface and the circular truncated cone transition surface, so that the pressing column is pressed to enable the jaw to move more smoothly from being over against the second annular matching surface to being over against the circular truncated cone transition surface or from being over against the circular truncated cone transition surface to being over against the second annular matching surface.
Further, one end of the weight holder 240 is provided with a groove 243, the groove 243 communicates with the opening 2421, and the pressing end 411 is located in the groove 243.
The utility model discloses an in the embodiment, press the end to be located the recess, when the user pressed, need stretch into the recess with the finger and come to press the end to pressing. When the pressing end is ejected out of the opening by the elastic force of the first spring, the pressing end does not expose out of the groove, the pressing column can be protected by the counterweight seat in the process of using the dumbbell for muscle training, collision between other objects and the pressing column is avoided, and the reliability of the jaw synchronous telescopic mechanism is ensured.
Further, the groove 243 is a hemispherical groove.
The utility model discloses an in the embodiment, when the user presses the end with the finger, can with recess internal contact, the inner wall of hemisphere type recess can not have sharp-pointed part, promotes user's pressing and feels.
Further, the plurality of jaws 510 move on the same plane perpendicular to the moving direction of the pressing column 410.
The utility model discloses an in the embodiment, a plurality of jack catchs are same and press the post direction of motion vertically plane on and move, press and press the post, the jack catch is close to press the one end of post along when pressing post side motion, guaranteed that a plurality of jack catchs are simultaneously just to first ring-shaped fitting surface or just to first ring-shaped fitting surface simultaneously, guaranteed a plurality of jack catchs concertina movement's synchronism.
Furthermore, chamfers 416 are respectively arranged at two ends of the pressing column 410.
The utility model discloses an in the embodiment, press the post and keep away from open-ended one end and set up to the chamfer, be convenient for press the post and insert the slip chamber, reduced the assembly degree of difficulty. Press the post and be close to open-ended one end and set up to the chamfer, can be but not limited to for the fillet, avoid the user to press when pressing the post, press the post and chuck user's finger, promoted user's use and experienced.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. The utility model provides a bell head joint jack catch synchronous telescopic machanism for balancing weight, its characterized in that includes the post of pressing with counter weight seat sliding connection, the one end of pressing the post is for pressing the end, the counter weight seat is provided with the confession press the gliding slip chamber of post, the one end in slip chamber is provided with the confession press the opening that the end exposes, the slip intracavity is provided with first spring, first spring does press the end to expose the opening provides elasticity, the side of pressing the post is provided with first annular fitting surface and second annular fitting surface, the diameter of first annular fitting surface is less than the diameter of second annular fitting surface, the counter weight seat is provided with a plurality of counter weight storehouses, counter weight seat sliding connection has a plurality of jack catches, the jack catch stretches into the counter weight storehouse, the jack catch is close to the one end of pressing the post along press the motion of post side.
2. The jaw synchronous telescoping mechanism for the bell-head clamping balancing weight according to claim 1, wherein a first stopping portion is arranged at one end of the sliding cavity close to the opening, a first annular protrusion is arranged on the side surface of the pressing column, the first annular matching surface is the side surface of the first annular protrusion, the first stopping portion stops the first annular protrusion, a second stopping portion is arranged at one end of the sliding cavity far away from the opening, and the second stopping portion stops the pressing column.
3. The jaw synchronous retracting mechanism for a bell-head clamping counterweight block of claim 2, wherein a side of said opening facing away from said sliding cavity extends into said opening to form said first stop.
4. The jaw synchronous telescoping mechanism for a bell-head clamping counterweight block of claim 2, wherein the inner wall of the sliding cavity is bent towards the inside of the sliding cavity to form the second stopping portion.
5. The jaw synchronous telescoping mechanism for the bell-head clamping balancing weight according to claim 1, wherein a second annular protrusion is arranged on the side surface of the pressing column, the second annular fitting surface is the side surface of the second annular protrusion, the pressing column is sleeved with the first spring, the first spring is located on one side of the second annular protrusion, which faces away from the opening, the inner wall of the sliding cavity is bent towards the inside of the sliding cavity to form a third stopping portion, and the first spring is located between the third stopping portion and the second annular protrusion.
6. The jaw synchronous telescoping mechanism for a bell-head clamped weight counterbalance according to claim 1, wherein a circular truncated cone transition surface is provided between the first annular mating surface and the second annular mating surface.
7. The jaw synchronous telescoping mechanism for the bell-head clamping balancing weight according to claim 1, wherein a groove is formed at one end of the balancing weight seat, the groove is communicated with the opening, and the pressing end is located in the groove.
8. The jaw synchronous telescoping mechanism for bell-head clamping counterweight block of claim 7, wherein said groove is a hemispherical groove.
9. The jaw synchronous telescoping mechanism for bell-head clamping counterweight block of claim 1, wherein a plurality of said jaws move on the same plane perpendicular to the direction of movement of said pressing column.
10. The jaw synchronous telescoping mechanism for a bell head clamping counterweight block according to claim 1, wherein chamfers are respectively arranged at two ends of the pressing column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222819572.5U CN218652862U (en) | 2022-10-25 | 2022-10-25 | Jaw synchronous telescopic mechanism for bell head clamping counterweight block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222819572.5U CN218652862U (en) | 2022-10-25 | 2022-10-25 | Jaw synchronous telescopic mechanism for bell head clamping counterweight block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218652862U true CN218652862U (en) | 2023-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222819572.5U Active CN218652862U (en) | 2022-10-25 | 2022-10-25 | Jaw synchronous telescopic mechanism for bell head clamping counterweight block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218652862U (en) |
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2022
- 2022-10-25 CN CN202222819572.5U patent/CN218652862U/en active Active
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