TW202012112A - Sleeve - Google Patents

Abstract

A sleeve includes a grip body and an assembly structure. The grip body is extend in a first direction and has a cap assembly end, and the cap assembly end has an end surface. The assembly structure is disposed on the end surface and has an inner wall, and the inner wall forms an assembly space with the end surface. The assembly space has an assembly depth in the first direction.

Description

Sleeve

The invention relates to a sleeve, in particular to a sleeve for driving a binding post.

Generally speaking, in the motor device, it is often seen that the device housing is provided with a binding post (binding post), which can be used to electrically connect the internal power supply and used to connect other electronic connectors. The electronic connectors that can be externally connected are, for example, banana plugs or ring terminals.

Please refer to the first to fourth figures. The first figure shows a perspective exploded view of the prior art sleeve used for the terminal; the second figure shows a perspective view of the prior art sleeve sleeved terminal; the third figure It is a schematic cross-sectional view of AA in the second image; a fourth image is a schematic cross-sectional view of BB in the second image. As shown in the first to fourth figures, a binding post 200 includes a first gasket ring 201, a second gasket ring 202, a terminal body 203, and a cam lock cap 204. When the terminal 200 is installed on a board 300, the first gasket ring 201 and the second gasket ring 202 are respectively disposed on both sides of the board body 300, so that the terminal body 203 passes through the first gasket ring 201 and the board The through hole (not shown) of the body 300 and the second backing ring 202 are then screwed to the terminal body 203 by the cam lock cap 204, and then the cam lock cap 204 is screwed to the terminal body 203.

As mentioned above, due to the limited area for the user to hold the cam lock cap 204, an auxiliary sleeve PA100 is usually used to lock the cam lock cap 204 to the terminal body 203 and the first gasket 201; The auxiliary sleeve PA100 has a sleeve body PA1, and the sleeve body PA1 is provided with a sleeve groove PA11, so that when the sleeve groove PA11 is sleeved on the cam lock cap 204, through the sleeve groove PA11 and the tapered outer wall 2041 The protrusion 20411 interferes to drive the cam lock 204 to rotate. In addition, the socket groove PA11 has a socket depth PAd1, and since the socket depth PAd1 is similar to the projection length b1 of the projection 20411, when the socket PA11 is socketed on the cam lock 204, the auxiliary sleeve The torque output by PA100 is almost completely transmitted to the cam lock cap 204.

However, in actual use, in order to lock the cam lock cap 204 to the terminal body 203, the user usually continues to apply a torque when tightening, to ensure that the cam lock cap 204 can be firmly locked to the terminal body 203, However, when the torque applied by the user is too large, the terminal body 203 is easily broken or deformed because it cannot withstand the excessive torque, or other components of the terminal 200 are deformed and damaged, resulting in the terminal 200 not being used normally. Or the service life is reduced.

In view of the prior art, in order to lock the cam lock cap to the terminal body, the user usually uses an auxiliary sleeve to lock, but when the torque applied by the user is too large, the terminal body or other components may be easily damaged. For this reason, the object of the present invention is to provide a sleeve, which can effectively avoid applying excessive torque to the cam lock cap.

In order to achieve the above objective, the present invention provides a sleeve for driving a binding post of a cam lock cap screwed to a terminal body of the binding post, the cam lock cap having a tapered outer wall and a plurality of Protrusions protruding from the outer wall of the tapered shape and spaced from each other, and each protuberance has a protruding length, the sleeve includes a grip body and a sleeve structure.

The gripping system extends along a first direction and has a lock cap sleeve end, and the lock cap sleeve end has an end face. The socket structure is provided on the end surface, and has an inner wall of the socket ring matched with the outer wall of the cone shape. The inner wall of the socket ring forms a socket space, and the socket space has a socket in the first direction Depth, socket depth is less than the length of the bump.

In one of the subsidiary technical means derived from the above necessary technical means, the socket structure includes a plurality of extending cylinders and an elastic socket ring. A plurality of extension column systems respectively extend from the end face in the first direction. The elastic sleeve ring is connected to the extension cylinder, and has an inner wall of the sleeve ring, and the inner wall of the sleeve ring is provided with a plurality of locking snap-on rounded corners and a plurality of unlocking snap-on rounded corners. The rounded corners and the unlocking snap-off corners are staggered with each other, and the curvature of each of the locking snap-off corners is greater than the curvature of each of the unlocking snap-off corners. Preferably, the extension cylinder has a first length, the elastic sleeve ring has a second length, and the sum of the first length and the second length is equal to the sleeve depth.

In one of the subsidiary technical means derived from the above necessary technical means, the sleeve further includes at least one pushing structure, which is disposed on the side of the holding body and extends along the first direction.

In one of the subsidiary technical means derived from the above necessary technical means, the length of the bump with the socket depth is less than 70%

Since the present invention utilizes the socket depth of the socket space to be less than the length of the protrusion, thereby effectively reducing the contact area between the inner wall of the socket ring and the tapered outer wall, and locking the locking of the inner wall of the socket ring to the rounded corners It is set to a rounded angle, and even a sleeve structure is formed by an elastic sleeve ring and an extended cylinder, so when the torque applied by the sleeve to the cam lock cap is too large, the sleeve is easy to slip off due to the small contact area with the cam lock cap To avoid the cam lock cap applying excessive torque to the terminal body and causing the terminal body to break.

PA100‧‧‧Auxiliary sleeve

PA1‧‧‧Sleeve body

PA11‧‧‧Socket socket

PAd1‧‧‧Socket depth

100‧‧‧Sleeve

1‧‧‧ Hold the body

11‧‧‧Lock cap sleeve end

12‧‧‧Lock cap sleeve end

111‧‧‧End

2‧‧‧Socket structure

21‧‧‧Extended cylinder

22‧‧‧Elastic sleeve ring

221‧‧‧Inner wall of sleeve ring

2211‧‧‧locked and locked to rounded corners

2212‧‧‧Unlocked card with rounded corners

3‧‧‧ Pushing structure

200‧‧‧Terminal

201‧‧‧First ring

202‧‧‧second ring

203‧‧‧terminal body

204‧‧‧Cam lock cap

2041‧‧‧Conical outer wall

20411‧‧‧Bump

300‧‧‧Board

SS‧‧‧Socket space

d1‧‧‧ First length

d2‧‧‧second length

L1‧‧‧First direction

L2‧‧‧Second direction

D3‧‧‧Lock direction

D4‧‧‧ unlock direction

b1‧‧‧Bump length

The first figure is a three-dimensional exploded schematic view of the prior art sleeve used for the terminal; the second figure is a three-dimensional schematic view of the prior art sleeve sleeved terminal; the third figure is the AA cross-sectional schematic diagram of the second figure; The fourth figure is a schematic BB cross-sectional view of the second figure; the fifth figure is a perspective schematic view showing the sleeve provided by the preferred embodiment of the present invention; the sixth figure is a view showing the sleeve provided by the preferred embodiment of the present invention The three-dimensional exploded schematic view of the socket connected to the terminal: The seventh figure shows the three-dimensional schematic view of the sleeve provided by the preferred embodiment of the present invention for the socket connected to the terminal: the eighth figure is the CC cross-sectional schematic diagram of the seventh figure ; And the ninth figure is a schematic diagram of the DD section of the seventh figure.

The specific embodiments of the present invention will be described in more detail below with reference to schematic diagrams. The advantages and features of the present invention will be clearer from the following description and patent application scope. It should be noted that the drawings are in a very simplified form and all use inaccurate proportions, which are only used to conveniently and clearly assist the purpose of explaining the embodiments of the present invention.

Please refer to the fifth figure, which shows a perspective schematic view of the sleeve provided by the preferred embodiment of the present invention. As shown in the fifth figure, a sleeve 100 includes a grip body 1, a socket structure 2 and two pushing structures 3 (only one is shown in the figure).

The grip body 1 extends along a first direction L1 and has a lock cap sleeve end 11 and a lock cap sleeve end 12. The lock cap sleeve end 12 extends to the lock cap sleeve along the first direction L1 The connecting end portion 11; wherein, the locking cap sleeve end portion 11 has an end surface 111.

The socket structure 2 includes four extension cylinders 21 (only one is shown in the figure) and an elastic socket ring 22. The four extension cylinders 21 are integrally formed to extend from the end surface 111 in the first direction L1. The elastic sleeve ring 22 is integrally connected to the four extension cylinders 21, and has a sleeve ring inner wall 221, and the sleeve ring inner wall 221 is provided with four locking and snapping corners 2211 and four unlocking The card reaches the rounded corner 2212. The four locking snap round corners 2211 are staggered with the four unlocking snap round corners 2212, and the curvature of each locking snap round corner 2211 is greater than the curvature of each unlocking snap round corner 2212. The extension cylinder 21 and the elastic sleeve ring 22 further surround the end surface 111 to form a sleeve space SS, and the extension cylinder 21 has a first length d1 (marked in the eighth figure) along the first direction L1. The socket ring 22 has a second length d2 (marked in the eighth figure) along the first direction L1. The sum of the first length d1 and the second length d2 is equal to the socket depth (not marked in the figure), which means the socket space SS has a socket depth along the first direction L1.

The two pushing structures 3 are symmetrically disposed on both sides of the holding body 1 and extend along the first direction L1.

Please continue to refer to the sixth to ninth figures. The sixth figure shows a three-dimensional exploded schematic view of the sleeve provided in the preferred embodiment of the present invention for being sleeved on the terminal: the seventh figure shows the preferred embodiment of the present invention. The provided sleeve is used to sleeve the three-dimensional schematic diagram of the terminal: the eighth figure is the CC cross-sectional diagram of the seventh figure; the ninth figure is the DD cross-sectional diagram of the seventh figure.

As shown in the fifth to ninth figures, the sleeve 100 is used to assemble a binding post 200 (binding post) to a plate 300; wherein, the binding post 200 includes a first backing ring 201 and a second A backing ring 202, a terminal body 203, and a cam lock cap 204. In the actual installation operation, the first gasket ring 201 and the second gasket ring 202 are respectively disposed on both sides of the board body 300, and the terminal body 203 is sequentially passed through the through holes of the first gasket ring 201 and the board body 300 (Not shown in the figure) and the second gasket ring 202, and the terminal body 203 is more engaged with the first gasket ring 201, and the portion of the terminal body 203 that passes through the second gasket ring 202 is further formed by a hexagonal nut (not labeled) fixed.

As mentioned above, the cam lock cap 204 is screwed to the terminal body 203, and the sleeve 100 of the present invention is used to sleeve the cam lock cap 204, and then the cam lock cap 204 is screwed to the terminal body 203; wherein, The cam lock cap 204 has a tapered outer wall 2041 and four protrusions 20411 projecting from the tapered outer wall 2041 and spaced from each other, and each protrusion 20411 has a protrusion length b1, the first length d1 and the second The total depth of the two lengths d2 is less than the length b1 of the projection, and the inner wall 221 of the sleeve ring is matched with the outer wall 2041 of the tapered shape. In addition, the sleeve depth of the sleeve 100 of the present invention is less than 70% of the bump length b1, and in this embodiment, the sleeve depth is about 50% to 60% of the bump length b1.

As described above, in actual operation, when the user holds the sleeve 100 and sleeves the cam lock cap 204, and the sleeve ring inner wall 221 cooperatively contacts the tapered outer wall 2041, the user can follow a locking direction D3 rotates the sleeve 100, thereby driving the cam lock cap 204 to rotate in the locking direction D3 to approach the first backing ring 201 in the first direction L1. When the cam lock cap 204 abuts on the first gasket 201, since the cam lock cap 204 can no longer advance in the first direction L1, the torque applied by the user rotating the sleeve 100 in the locking direction D3 will be The cam lock cap 204 is locked to the torsion of the terminal body 203 and the first backing ring 201, and because the sleeve 100 of the present invention rotates in the locking direction D3, the locking corner 2211 The lugs 20411, and because the locking snap round corners 2211 are all rounded corners, when the torsion force applied to the cam lock cap 204 by the sleeve 100 is too large, the sleeve 100 is easily locked against the rounded corners of the round corners 2211 due to the locking Guide and slide off, so that the sleeve 100 exits the cam lock cap 204 in a second direction L2.

On the other hand, since the sleeve structure 2 of the sleeve 100 of the present invention is composed of the extending cylinder 21 and the elastic sleeve ring 22, the elastic sleeve ring 22 in contact with the cam lock cap 204 when the torsion force is too large, The snapping relationship between the elastic sleeve ring 22 and the cam lock cap 204 can be released by slight elastic deformation.

It should be noted that, since the sleeve depth of the sleeve 100 of the present invention is less than 70% of the projection length b1, when the sleeve 100 is sleeved on the cam lock cap 204, the locking jamming circle can be effectively reduced The angle 2211 snaps against the area of the projection 20411, making it easier for the sleeve 100 to disengage from the cam lock cap 204 when the torque is too large.

In addition, when the user wants to turn the cam lock cap 204 away from the terminal body 203 and the first gasket 201 in the second direction L2 through the sleeve 100, the user rotates in an unlocking direction D4 opposite to the locking direction D3, At this time, the inner wall 221 of the sleeve ring is locked with the rounded corner 2212 against the projection 20411, and because the rounded corner 2212 is not rounded, the sleeve 100 can effectively loosen the cam lock cap 204.

In summary, since the present invention utilizes the socket depth of the socket space to be less than the length of the projection, thereby effectively reducing the contact area between the inner wall of the socket ring and the outer wall of the tapered shape, thereby, when the sleeve is applied to the cam When the torsion force of the lock cap is too large, the sleeve can easily slip off due to the small contact area with the cam lock cap, to avoid the cam lock cap applying excessive torque to the terminal body and causing the terminal body to break; The rounded corners of the locking snap-in of the inner wall of the ring are set to rounded corners, so that the sleeve can be more easily slipped off from the snap-in of the cam lock cap. In addition, since the socket structure of the present invention is composed of an elastic socket ring and an extended cylinder, the elastic socket ring has a more elastically deformable space than the socket space of the prior art. In practice, the user The thickness, width or material of the elastic sleeve ring can also be used to control the maximum torsion force that can be applied by the elastic sleeve ring, which can effectively prevent the sleeve from applying excessive torque to the cam lock cap to cause the terminal body to break or cause the terminal to break. Other components are deformed and damaged.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any way. Any person skilled in the art in the technical field, within the scope of not departing from the technical means of the present invention, makes any equivalent replacement or modification of the technical means and technical contents disclosed in the present invention without any deviation from the technical means of the present invention. The content still falls within the protection scope of the present invention.

100‧‧‧Sleeve

1‧‧‧ Hold the body

11‧‧‧Lock cap sleeve end

12‧‧‧Lock cap sleeve end

111‧‧‧End

2‧‧‧Socket structure

21‧‧‧Extended cylinder

22‧‧‧Elastic sleeve ring

221‧‧‧Inner wall of sleeve ring

2211‧‧‧locked and locked to rounded corners

2212‧‧‧Unlocked card with rounded corners

3‧‧‧ Pushing structure

SS‧‧‧Socket space

L1‧‧‧First direction

L2‧‧‧Second direction

Claims (5)

A sleeve is used to drive a binding post of a cam lock cap screwed to a terminal body of the binding post, the cam lock cap has a tapered outer wall and a plurality of protruding from the tapered outer wall The protrusions are mutually spaced from each other, and each of the protrusions has a protrusion length. The sleeve includes: a grip body that extends in a first direction and has a lock cap sleeve end, the lock The end portion of the cap sleeve has an end surface; and a sleeve structure is provided on the end surface and has an inner wall of a sleeve ring matched with the outer wall of the tapered shape. The inner wall of the sleeve ring forms a set A socket space, and the socket space has a socket depth along the first direction, and the socket depth is less than the length of the protrusion. The sleeve as described in item 1 of the patent application scope, wherein the sleeve connection structure includes: a plurality of extension cylinders respectively extending from the end surface in the first direction; and an elastic sleeve ring connected to the The extension cylinders have an inner wall of the sleeve ring, and the inner wall of the sleeve ring is provided with a plurality of locking snap-fitting corners and a plurality of unlocking snap-fitting corners, and the locking snap-fitting corners are The unlocking and locking corners are staggered with each other, and the curvature of each of the locking and locking corners is greater than the curvature of each of the unlocking and locking corners. The sleeve as described in item 2 of the patent application scope, wherein the extension cylinders have a first length, the elastic sleeve ring has a second length, and the sum of the first length and the second length is equal to the Socket depth. The sleeve as described in item 1 of the patent application scope further includes at least one pushing structure, which is disposed on the side of the holding body and extends along the first direction. The sleeve as described in item 1 of the patent application scope, wherein the sleeve depth is less than 70% of the length of the projection.

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