Barbell clamp
By designing barbell clamps with progressive inner diameter and limiting spheres, the existing barbell chucks have poor locking performance and difficulty in opening, and the barbell is stable and fast loading and unloading.
Patent Information
- Application Number
- CN202420449172.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-08
AI Technical Summary
The existing barbell chuck has problems in terms of locking performance and opening difficulty, especially the problems of poor locking performance and difficulty in opening the spiral barbell chuck.
A barbell clip including a first sleeve and a second sleeve is designed. The inner diameter of the first sleeve is gradually reduced. The limit assembly is composed of a plurality of limit spheres and channels, through the limit sphere and the barbell rod and the first The fitting of the inner wall of the two sleeves provides firming force and enables rapid loading and unloading through sliding operation.
It effectively prevents the barbell from sliding, improves locking performance, and achieves rapid loading and unloading through sliding operation, solving the problem of difficulty in opening.
Smart Images
Figure CN222173035U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fitness equipment, in particular to a barbell clamp. Background Art
[0002] The barbell is a kind of sports equipment. In order to prevent the barbell plates from loosening during use, a chuck must be used to lock it. There are two types of barbell chucks currently used in competitions: the Olympic type (or the Huff nut clamping type) and the open spiral type. The former is composed of a chuck body (with threads), a Huff block, a Yuanbao nut and a plum nut, and is used for bare rods; the latter is composed of a chuck body and an open tongue block, and is used for threaded rods. The Olympic barbell chuck is the earliest type of barbell chuck. Its structure, locking performance and use performance are all good, but the loading and unloading cannot be achieved very quickly. Therefore, people invented an open spiral barbell chuck. Two symmetrical opening tongue blocks, also called press hands, are designed in the chuck body. When used for threaded rods, the tongue blocks are embedded in the threads to play a locking role. However, due to the force along the axis of the barbell crossbar, this type of chuck has problems such as poor locking performance and difficulty in opening. Utility Model Content
[0003] The utility model aims to provide a barbell clamp which can effectively prevent the barbell from sliding off.
[0004] According to the utility model, a barbell clamp is provided, comprising a first sleeve for sleeved on the end of a barbell rod and a second sleeve sleeved outside the first sleeve, the inner diameter of the first end of the first sleeve gradually decreases toward the second end, the outer wall of the first sleeve is an inclined surface, the inner wall of the second sleeve is in contact with the inclined surface, and a limiting component is installed on the inner wall of the first sleeve for limiting the position of the barbell rod after it is sleeved in place in the first sleeve.
[0005] In actual use, after the barbell plates are put on the barbell rod, the side with the smaller inner diameter of the first sleeve is aligned with the barbell rod, so that the barbell rod is slowly inserted into the first sleeve. After reaching a certain extent, the limit device will limit the barbell rod to prevent the barbell plates from slipping.
[0006] Furthermore, the limiting assembly includes a plurality of limiting balls, and a plurality of channels are radially opened on the inner wall of the first sleeve for the plurality of limiting balls to slide in a one-to-one correspondence, and the channels pass through the inner and outer walls of the first sleeve.
[0007] Furthermore, the limiting ball is partially exposed outside the channel, and after the barbell bar is sleeved in place in the first sleeve, the limiting ball is respectively fitted with the barbell bar and the inner wall of the second sleeve.
[0008] Specifically, after the end of the first sleeve with a smaller inner diameter is aligned with the barbell bar, the barbell bar is inserted inwardly, and the second sleeve is operated to slide relative to the first sleeve so that the limiting ball retracts into the channel. In this way, the barbell bar can be continuously inserted inwardly. After reaching the specified position, after the first sleeve is against the barbell bar, after the barbell bar is sleeved, since the inner and outer diameters of the first end of the first sleeve decrease toward the second end, that is, the inner and outer walls of the first sleeve are inclined, the limiting ball will be squeezed by the barbell bar and the inner walls of the second sleeve at the same time, and the limiting ball will have an opposite force on the barbell bar to further stabilize the barbell bar. When disassembly is required, it is only necessary to slide the inner wall of the second sleeve along the inclined surface of the outer wall of the first sleeve in the direction of the smaller outer diameter of the first sleeve. In this way, the distance between the limiting ball and the outer wall of the second sleeve will become larger, thereby removing the squeezing of the barbell bar to achieve disassembly.
[0009] Furthermore, a hand-grip portion is provided on the outer circumference of the first end of the first sleeve.
[0010] Furthermore, the second sleeve is connected to the hand-held part accordingly.
[0011] Furthermore, a collar is installed at the first end of the first sleeve, and the collar is axially elastically connected to the first sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the barbell clamp described in an embodiment of the utility model;
[0013] Figure 2 This is a schematic structural diagram of the barbell clamp (after removing the first ring) described in an embodiment of the utility model;
[0014] Figure 3 It is a schematic structural diagram of the barbell clamp (after removing the first ring and the second sleeve) described in an embodiment of the utility model.
[0015] In the figure, 1-first sleeve; 2-second sleeve; 3-limiting sphere; 4-handle portion; 5-ring. DETAILED DESCRIPTION
[0016] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.
[0017] See also Figures 1 to 3, shows a barbell clamp of the utility model, including a first sleeve 1 for being sleeved on the end of a barbell rod and a second sleeve 2 sleeved outside the first sleeve 1, the inner diameter of the first sleeve 1 gradually decreases from the first end to the second end, the outer wall of the first sleeve 1 is an inclined surface, the inner wall of the second sleeve 2 is in contact with the inclined surface, and a limiting component is installed on the inner wall of the first sleeve 1 for limiting the position of the barbell rod after it is sleeved in place in the first sleeve 1.
[0018] In actual use, after the barbell plates are put on the barbell rod, the side with the smaller inner diameter of the first sleeve 1 is aligned with the barbell rod, so that the barbell rod is slowly inserted into the first sleeve 1. After reaching a certain extent, the limit device will limit the barbell rod to prevent the barbell plates from slipping.
[0019] The limiting assembly includes a plurality of limiting balls 3 . A plurality of channels for the limiting balls 3 to slide in a one-to-one correspondence are radially opened on the inner wall of the first sleeve 1 . The channels penetrate the inner and outer walls of the first sleeve 1 .
[0020] The limiting sphere 3 is partially exposed outside the passage. After the barbell bar is sleeved in place in the first sleeve 1, the limiting sphere 3 fits with the barbell bar and the inner wall of the second sleeve 2 respectively.
[0021] After the end with the smaller inner diameter of the first sleeve 1 is aligned with the barbell bar, the barbell bar is inserted inwardly, and the second sleeve 2 is operated to slide relative to the first sleeve 1 so that the limiting ball 3 is retracted into the channel. In this way, the barbell bar can be continuously inserted inwardly. After reaching the specified position, after the first sleeve 1 is against the barbell bar, after the barbell bar is sleeved, since the inner and outer diameters of the first end of the first sleeve 1 decrease toward the second end, that is, the inner and outer walls of the first sleeve 1 are inclined, the limiting ball 3 will be squeezed by the barbell bar and the inner walls of the second sleeve 2 at the same time, and the limiting ball 3 will have an opposite force on the barbell bar to further stabilize the barbell bar. When disassembly is required, it is only necessary to slide the inner wall of the second sleeve 2 along the inclined surface of the outer wall of the first sleeve 1 in the direction of the smaller outer diameter of the first sleeve 1. In this way, the distance between the limiting ball 3 and the outer wall of the second sleeve 2 will become larger, thereby removing the squeezing of the barbell bar to achieve disassembly.
[0022] It is worth noting that the limiting ball 3 can also be connected to the channel through a spring. After being squeezed by the barbell bar, the barbell bar is pressed by the reaction of the elastic force to achieve anti-slip.
[0023] A hand-grip portion 4 is disposed on the outer circumference of the first end of the first sleeve 1 .
[0024] In actual operation, the handheld part 4 can be held by hand to perform subsequent operations to achieve the purpose of labor saving.
[0025] The second sleeve 2 and the hand-held part 4 are connected correspondingly.
[0026] Specifically, the second sleeve 2 and the hand-held part 4 can be connected in various ways, such as by linking or screwing.
[0027] A collar 5 is installed at the first end of the first sleeve 1 , and the collar 5 is axially elastically connected to the first sleeve 1 .
[0028] After holding the hand grip 4, the ring 5 is grasped tightly, and then the first sleeve 1 can be pulled up and down. After use, the elastic force will reset the first sleeve 1.
[0029] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.
Claims
1. A barbell clamp, It is characterized in that It comprises a first sleeve for sleeved on the end of a barbell rod and a second sleeve sleeved outside the first sleeve, wherein the inner and outer diameters of the first end of the first sleeve gradually decrease toward the second end, the outer wall of the first sleeve is an inclined surface, the inner wall of the second sleeve is in contact with the inclined surface, and a limiting component is installed on the inner wall of the first sleeve for limiting the position of the barbell rod after it is sleeved in place in the first sleeve; The limiting assembly includes a plurality of limiting balls, and a plurality of channels for the limiting balls to slide one by one are radially opened on the inner wall of the first sleeve, and the channels pass through the inner and outer walls of the first sleeve; The limiting ball part is exposed outside the channel, and after the barbell bar is sleeved in place in the first sleeve, the limiting ball is respectively fitted with the barbell bar and the inner wall of the second sleeve.
2. The barbell clamp according to claim 1, It is characterized in that A hand-grip portion is disposed on the outer circumference of the first end of the first sleeve.
3. The barbell clamp according to claim 2, It is characterized in that The second sleeve is connected to the hand-held part accordingly.
4. The barbell clamp according to claim 3, It is characterized in that A collar is installed at the first end of the first sleeve, and the collar is axially elastically connected to the first sleeve.