CN215673082U

CN215673082U - Adjustable fixing pin for butterfly piece of barbell stand

Info

Publication number: CN215673082U
Application number: CN202121911287.5U
Authority: CN
Inventors: 徐美芳; 雷文海
Original assignee: Cuhk Sports Industry Group Co ltd
Current assignee: Cuhk Sports Industry Group Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-01-28
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses an adjustable fixing pin of a butterfly sheet of a barbell frame, which comprises: the base wraps the pressing part and the pin pipe arranged in the center of the pressing part; the expander is arranged in the middle of the pin pipe and is used for changing the working diameter of the pin through expansion; and the pressing plate is provided with the top end of the pin pipe and interacts with the pressing part to fix the pin on the workpiece. The utility model has the beneficial effects that: the pin of the same specification is used for fixing butterfly sheets with different apertures within a certain range, the specification of the fixing pin is reduced, storage resources are saved, assembly operation is facilitated, and production management of the pin is facilitated.

Description

Adjustable fixing pin for butterfly piece of barbell stand

Technical Field

The utility model belongs to the technical field of pins in the technical field of fixation of butterfly plates of barbell frames, and particularly relates to an adjustable fixing pin for butterfly plates of a barbell frame.

Background

The butterfly piece is a spare part on the barbell frame support arm, fixes on the support arm through the pin, and present fixed mode is, selects corresponding fixed pin according to the size in pin hole, and the diameter of traditional pin work portion is fixed, can only adopt the pin of different specifications to the pin hole of different sizes, has caused the pin to have a large amount of specifications, and when the assembly, it has consumed a large amount of preparation time to look for the pin, has also occupied a large amount of storage resources simultaneously.

In summary, there is an urgent need for an adjustable fixing pin for butterfly plates of barbell stand to fix butterfly plates with different apertures by using the same specification pin in a certain range.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides an adjustable fixing pin for butterfly plates of a barbell frame.

The utility model adopts the following specific technical scheme:

an adjustable fixing pin for butterfly of barbell frame, which is used for fixing the butterfly of barbell frame, the fixing pin includes:

the base wraps the pressing part and the pin pipe arranged in the center of the pressing part;

the expander is arranged in the middle of the pin pipe and is used for changing the working diameter of the pin through expansion;

a hold-down plate, provided with the top end of the pin tube, interacting with the hold-down part to fix the pin on the workpiece.

By adopting the design, the diameter of the fixing pin pipe part is adjustable through expansion of the expander, the expansion device can adapt to pin holes with different sizes, the adaptation is continuous to the diameter of the pin holes, and in addition, compared with the traditional integral fixing pin, the fixing pin with the combined structure is convenient to disassemble. When the barbell frame needs to be maintained, the spring pieces are convenient to detach. The arrangement of the pressure strip ensures the adaptability to the barbell support plate, namely has a certain adjusting function and can adapt to different barbell support arms within a certain range.

As a further improvement of the utility model, the middle part of the pin tube is provided with a plurality of through holes vertical to the axis of the pin tube, the expander is provided with a slide block, and the slide block slides in the through holes. By adopting the design, the pin pipe is provided with a moving space of the sliding block, and the expansion of the expander is provided with a precondition.

Preferably, the number of the through holes is 4.

As a further improvement of the utility model, the expander comprises an expansion block, a screw rod, a supporting plate and a screw cap which are sequentially arranged from bottom to top, the screw rod is driven to rotate by the screw cap at the top of the supporting plate, the expansion block is pulled to move upwards, and the expansion block pushes the sliding block to slide along the direction vertical to the axis of the pin pipe, so that the expansion action is realized.

Through the design, the expansion block is conical, a second through hole is arranged at the axis of the expansion block, the screw rod is inserted into the through hole, one end of the screw rod, which is positioned at the bottom of the expansion block, is provided with a limit end, the other end of the screw rod penetrates through the through hole in the center of the support plate, the ground of the support plate is attached to the end surface of the top of the pin pipe, the top surface of the support plate is fixed with the nut, the nut is welded with the support plate, the contact surface of the sliding block and the expansion block is an inclined surface matched with the conical surface, the angle of the inclined surface is 12-15 degrees, the structure is characterized in that when the screw rod rotates in the nut, the expansion block is driven to do lifting motion due to the principle of threads, when the expansion block moves upwards, the expansion block pushes the sliding block to slide along the direction vertical to the axis of the pin pipe, the expansion motion is realized, the fixing pin is fastened, when the expansion block moves downwards, the sliding block pushes the sliding block to slide to the axis of the pin pipe along the direction vertical to the axis of the pin pipe, a reduction action is achieved, now for the removal of the fixing pin.

As a further improvement of the utility model, the hold-down plate is secured to the top of the pin tube by a threaded connection. The outer cylindrical surface at pin pipe top is equipped with the screw thread, passes through threaded connection with the pressure strip, and the benefit of this kind of structure still has realized the fastening when realizing connecting, and two kinds of functions are realized to a structure also promptly, have still changed the problem that traditional pin can't be dismantled simultaneously.

As a further improvement of the utility model, the outer circumference of the compression plate is provided with a plurality of notches which are symmetrically distributed and are used for matching with a spanner during fastening. The structure is set for screwing the pressing block conveniently, and the spanner is convenient to apply force.

As a further improvement of the utility model, the top of the pin tube is provided with a counter bore for accommodating the support plate. By hiding the support plate in the top of the pin tube, the overall construction of the fixation pin can be made shorter.

The utility model has the positive effects that:

the pin of the same specification is used for fixing butterfly sheets with different apertures within a certain range, the specification of the fixing pin is reduced, storage resources are saved, assembly operation is facilitated, and production management of the pin is facilitated.

Drawings

FIG. 1 is a front view of an adjustable fixation pin for a butterfly of a barbell stand according to the present invention;

FIG. 2 is a cross-sectional view of the adjustable fixation pin A-A of the butterfly plate of the barbell stand shown in FIG. 1;

FIG. 3 is a front view of the pin tube in the adjustable fixation pin of the butterfly of the barbell stand shown in FIG. 2;

illustration of the drawings: 1-a pressing part, 2-a base, 3-a sliding block, 4-a pressing plate, 5-a pin pipe, 6-a counter bore, 7-a supporting plate, 8-a nut, 9-a pin pipe hole, 10-a screw rod, 11-an expansion block, 1101-a second through hole and 12-a first through hole.

Detailed Description

The utility model is described in detail below with reference to the following figures and specific embodiments:

the specific embodiment is as follows:

in the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

The first embodiment is as follows:

as shown in fig. 1 and 2, an adjustable fixing pin for butterfly of barbell frame comprises a base 2, a pressing part 1 is arranged at the bottom of the base 2, a pin tube 5 is arranged at the top of the center of the pressing part 1, the pin tube 5 is provided with a pin tube hole 9, a conical expansion block 11 is arranged in the pin tube hole 9, a first through hole 12 is arranged in the middle of the pin tube hole 9, the number of the first through holes 12 is six, each first through hole 12 is provided with a sliding block 3, the sliding block 3 is matched with the conical surface of the expansion block 11, the axis of the expansion block 11 is provided with a second through hole 1101, a screw 10 is arranged in the second through hole 1101, one end of the screw 10, which is positioned at the bottom of the expansion block 11, is provided with a limit end, the other end of the screw passes through hole at the center of a supporting plate 7, the ground of the supporting plate 7 is attached to the end surface of the top of the pin tube 5, a nut 8 is fixed on the top surface of the supporting plate 7, the nut 8 is welded with the supporting plate 7, the outer cylindrical surface of the top of the pin pipe 5 is provided with threads, and the threads are connected with a pressing plate 4.

When in specific use:

insert the pin pipe 5 in the pin hole, twist the pressure strip 4 from the opposite side in pin hole to the screw thread that the top cylindrical surface of pin pipe 5 was equipped with on, then rotatory screw rod 10, when screw rod 10 rotated in nut 8, because the principle of screw thread, will drive inflation piece 11 and be elevating movement, when inflation piece 11 upward movement, inflation piece 11 promotes slider 3 and slides along the perpendicular to 5 axis directions of pin pipe, realize the inflation action, be used for fastening the fixed pin this moment, when inflation piece 11 downstream, inflation piece 11 promotes slider 3 and slides to the axle center of pin pipe 5 along the perpendicular to 5 axis directions of pin pipe, realize reducing the action, be used for dismantling the fixed pin this moment.

The second embodiment is as follows:

on the basis of the first embodiment, the top of the pin tube 5 is provided with a counter bore 6 for accommodating a support plate 7, and the support plate 7 is hidden in the top of the pin tube 5.

The third concrete embodiment:

on the basis of the first embodiment, the outer circumference of the compression plate 4 is provided with a pair of notches which are symmetrically distributed and are used for matching with a wrench during fastening.

The fourth concrete embodiment:

in the first embodiment, the number of the first through holes 12 is four.

The foregoing has outlined broadly some of the aspects and features of the various embodiments, which should be construed to be merely illustrative of various potential applications. Other beneficial results can be obtained by applying the disclosed information in a different manner or by combining various aspects of the disclosed embodiments. Other aspects and a more complete understanding may be obtained by reference to the detailed description of the exemplary embodiments taken in conjunction with the accompanying drawings, based on the scope defined by the claims.

The above examples illustrate the present invention in detail. It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions, deletions, and substitutions which may be made by those skilled in the art within the spirit of the present invention are also within the scope of the present invention.

Claims

1. The utility model provides a fixed pin with adjustable butterfly piece of barbell frame for the fixed of barbell frame butterfly piece, its characterized in that, the fixed pin includes:

2. The adjustable fixing pin for butterfly of barbell stand according to claim 1, wherein the pin tube has a plurality of first through holes perpendicular to the axis of the pin tube at the middle part thereof, and the expander has a slider sliding in the through holes.

3. The adjustable fixing pin for butterfly of barbell stand according to claim 2, wherein the number of the through holes is 4.

4. The adjustable fixing pin for butterfly of barbell frame as claimed in claim 3, wherein the expander comprises a lower expansion block, a screw rod, a support plate and a nut, the nut on the top of the support plate drives the screw rod to rotate, the expansion block is pulled to move upwards, and the expansion block pushes the sliding block to slide along the direction perpendicular to the axis of the pin tube, so as to realize the expansion action.

5. The adjustable fixing pin for butterfly of barbell stand according to any one of claims 1 to 4, wherein the pressing plate is fixed to the top of the pin tube by a screw connection.

6. The adjustable fixing pin for butterfly of barbell frame as claimed in claim 5, wherein the pressing plate has a plurality of notches symmetrically distributed around its outer circumference for engaging with a wrench when fastening.

7. The adjustable fixing pin for butterfly of barbell stand according to claim 4, wherein the top of the pin tube is provided with a counter bore for receiving the support plate.