TWM551553U - Detaching device for iron cover of trailing arm - Google Patents

Description

Puller for the arm of the trailing arm (1)

The present invention relates to a detacher for an iron sleeve of a trailing arm, and more particularly to an innovative design of a detacher for use in removing an iron sleeve of a trailing arm.

The disassembly of the iron sleeve of the early car towing arm is to remove the iron sleeve from the sleeve of the trailing arm by tapping, but the method of disassembling the tapping iron sleeve is more labor-intensive, and if the direction of the striking force and the center of the iron sleeve occur, Deviation makes the iron sleeve more difficult to disassemble, and even damages the iron sleeve and the sleeve.

Therefore, the creator has developed a labor-saving detacher for the iron sleeve of the trailing arm that is removed from the sleeve of the trailing arm smoothly. The creator also used the structure on August 8, 2016. You have filed a patent application, the case is No. 105211998, and the case was approved on December 21, 2016, and the certificate number is No. M534073.

The new patent of No. M534073 "Unloader for Iron Arm of Trailing Arm" mainly includes: a push sleeve, a first screw, a first nut, a first sleeve, and a second sleeve. a tightening ring and a second screw; wherein the pushing sleeve is a sleeve body having a closed end and an open end at one end, and a first screw hole at the closed end; the first screw An opposite first end and a second end, the first end is screwed to the first screw hole; the first nut is a second end of the first screw that passes through the iron sleeve of the trailing arm, so that the iron sleeve Located between the push sleeve and the first nut, and respectively being the push sleeve and the first nut clamp; the first sleeve has a ring surface, and the ring mask has a second screw hole, and the circumference of the ring surface extends partially An arcuate wall, the arcuate wall forming a card-flanging flange at an end away from the circumference of the torus, the card flange can be embedded at the junction of the sleeve of the iron sleeve and the trailing arm; the second sleeve is the first The sleeve is combined into a complete annular curved body; the tightening ring is an annular body, and the loop is bundled on the outer side of the first sleeve and the second sleeve after the butting; the second screw is screwed through a second screw hole of the fitting part, wherein the second screw is located at one end of the first sleeve member and a pushing member is provided, and the pushing member contacts the outer surface of the closed end of the pushing sleeve; accordingly, when the second screw is rotated, Pushing the pushing member of the second screw to push the pushing sleeve, and pushing the iron sleeve which is pierced by the first screw and is the pushing sleeve and the first nut clamp to push off the sleeve of the trailing arm .

The above-mentioned new patent No. M534073 "Unloader for the iron arm of the trailing arm" has been able to smoothly remove the iron sleeve without destroying the sleeve and the iron sleeve of the trailing arm; however, the creator still re-encloses With the concept of seeking good, we have developed a detacher that provides an iron sleeve for the structure of the towing arm that is relatively easy to use and convenient to use.

The main purpose of this creation is to provide a detacher for the iron sleeve of the trailing arm, which is designed to remove the iron sleeve in an easy and gradual manner when the iron sleeve is removed through the design of the detacher, thereby saving labor and time saving benefits. At the same time, it can also avoid damage to the sleeve of the iron sleeve and the trailing arm.

Another main purpose of the creation is to provide a detacher for the iron sleeve of the trailing arm. The detacher can change the diameter of the sleeve of the sleeve and the components of the clamping sleeve according to different sleeve sizes, so that the application of the detacher is more practical.

The main purpose and effect of the above-mentioned creation are achieved by the following specific technical means: a detacher for the iron sleeve of the trailing arm, comprising: a push sleeve, a first screw, a first nut, a set a clamping member, a clamping member, a second screw; the pushing sleeve is a sleeve body having a closed end and an open end at one end, and a first screw hole at the closed end; The first screw has opposite first ends and second ends, the first end is screwed with the first screw hole; the first nut is the first one with an iron sleeve passing through the trailing arm The second end of the screw is twisted so that the iron sleeve is located between the pushing sleeve and the first nut, and is the pushing sleeve and the first nut clamp respectively; The fitting has a toroidal surface, the ring mask has a second screw hole, and a peripheral edge of the annular surface partially extends an arcuate wall, and the arcuate wall forms an inset cam at a distal end that is engaged with the circumference of the torus a flange, the insert flange can be embedded at a junction of the sleeve and the sleeve of the trailing arm; the clip setting member has a curvature a block body having an outer curved surface facing the surface of the clamping seat, and an inner arc surface facing the sleeve and the surface of the sleeve member, the inner curved surface forming a class shape and having a first embedded surface Clamping surface, second clamping surface, the first The clamping surface corresponds to the surface of the sleeve, and the second clamping surface corresponds to the surface of the sleeve member, and the sleeve member is clamped and fixed to the sleeve by the clamp setting member The clamping seat is disposed on the outer periphery of the sleeve member, and the two end portions are respectively assembled with the two clip setting members; the second screw is screwed through the sleeve member. a second screw hole, wherein the second screw is located at one end of the sleeve member and a pushing member is provided, and the pushing member contacts an outer surface of the closed end of the pushing sleeve; accordingly, when the second portion is rotated a screw, which can push the pushing member of the second screw to push the pushing sleeve, and the iron sleeve top which is to be pierced by the first screw and is the pushing sleeve and the first nut clamp Push the sleeve out of the trailing arm.

The detacher of the iron sleeve of the trailing arm, wherein the inner surface of the curved wall of the sleeve member is provided with a curved gasket, and the curved gasket is used to reduce the arc shape of the sleeve member The diameter of the wall is long, and the sleeve having the small diameter is correspondingly fitted.

The detacher of the iron sleeve of the trailing arm, wherein the arcuate wall is provided with at least two perforations, and the outer surface of the arcuate gasket protrudes from the perforated column, the pillar Penetrating into the perforations, positioning the curved shim on the inner surface of the curved wall.

The detacher of the iron sleeve of the trailing arm as described above, wherein the curved gasket is provided with a magnetic element capable of magnetically absorbing the curved wall of the iron material.

a detacher for an iron sleeve of a trailing arm as described above, wherein the length of the pedestal Greater than the thickness of the curved wall, the stud protrudes from the outer surface of the curved wall after penetrating the perforation.

A detacher for an iron sleeve of a trailing arm as described above, wherein a port at an open end of the urging sleeve is formed with a butt flange for engaging the iron sleeve.

The detacher of the iron sleeve of the trailing arm, wherein the outer arc surface of the clip setting member is provided with a positioning hole, the clamping seat has a corresponding locking hole, and the two positioning members are respectively locked After being inserted into the two keyholes, they are further embedded in the positioning holes, so that the two clip setting members have the function of clamping and fixing.

The detacher of the iron sleeve of the trailing arm, wherein the end of the positioning member is provided with a concave ring, and the second clamping member is provided with a locking hole facing the front or the rear wall. A locking member is locked in the locking hole, and the limiting member protrudes to the concave ring, so that the positioning member and the clamping setting member are not easily separated.

The detacher of the iron sleeve of the trailing arm, wherein the second screw is provided with a receiving groove at one end of the pushing member, and a ball is mounted in the receiving groove, the pushing member The utility model has a set of posts, the socket rods are embedded in the receiving groove, and are in contact with the balls at the ends of the socket bars.

The detacher of the iron sleeve of the trailing arm, wherein the wall surface of the accommodating groove is provided with a concave ring, and the socket rod is sleeved with a C-shaped buckle, and the socket rod is embedded in the accommodating In the case of the groove, the C-shaped buckle is snapped into the concave ring such that the pusher set is positioned on the second screw.

a detacher for an iron sleeve of a trailing arm, wherein the urging sleeve forms a recessed groove for a surface of the thrust member contacting, the recessed groove being shaped to be in contact with the urging member The end face of the push sleeve corresponds.

The advantages of this creation: The detacher of the iron sleeve of the trailing arm of the present invention can be smoothly towed by the use of the push sleeve, the first screw, the first nut, the sleeve, the clamp setting member, the clamping seat and the second screw. The bearing in the iron sleeve of the arm is removed, and it is indeed avoided that the iron sleeve is damaged when the iron sleeve is removed and installed.

In addition, the structural design of the creation can change the inner diameter of the fitting after the arc-shaped gasket is added in the fitting according to the size of the iron sleeve, and then match the first clamping surface of the clamping member. The class arrangement between the two clamping faces enables the detacher to be securely fixed in the sleeve and smoothly disassemble the iron sleeve in the sleeve.

(1) ‧‧‧ push sleeve

(11) ‧ ‧ closed end

(12) ‧ ‧ open end

(13)‧‧‧First screw hole

(14)‧‧‧Docking flange

(15) ‧‧‧recessed trough

(21)‧‧‧First screw

(211) ‧‧‧ first end

(212) ‧‧‧ second end

(22)‧‧‧First Nut

(3) ‧ ‧ sets of fittings

(31)‧‧‧Torus

(32)‧‧‧Second screw hole

(33)‧‧‧ curved wall

(331)‧‧‧Perforation

(34)‧‧‧Inlay flange

(35)‧‧‧Shaped gasket

(351)‧‧‧Inlay

(352)‧‧‧ Magnetic components

(4) ‧‧‧ 夹座

(41)‧‧‧Keyhole

(5) ‧ ‧ clip setting parts

(51)‧‧‧Outer curved surface

(52)‧‧‧Inside curved surface

(521)‧‧‧First inlay face

(522)‧‧‧Second inlay face

(53) ‧‧‧Positioning holes

(54)‧‧‧ Positioning parts

(541) ‧ ‧ concave ring

(55)‧‧‧Lock holes

(56) ‧‧‧Limited parts

(6)‧‧‧Second screw

(61)‧‧‧Pushing pieces

(611)‧‧‧ Sockets

(612)‧‧‧C-shaped buckle

(62) ‧‧‧ accommodating slots

(621) ‧ ‧ concave ring

(63)‧‧‧ balls

(20)‧‧‧Sleeve

(30)‧‧‧ Iron sets

The first picture: the exploded view of the disassembler of this creation

The second picture: a schematic diagram of the structural relationship between the sleeve of the detacher of the present creation and the clamp setting member

The third picture: the three-dimensional combination diagram of the disassembler of this creation (the top push sleeve, the first screw and the first nut are not installed)

Figure 4: Front view of the disassembler of this creation when the iron sleeve is removed

Figure 5: Schematic diagram of the disassembler of this creation when dismantling the iron sleeve (1)

Figure 6: Schematic diagram of the disassembler of this creation when dismantling the iron sleeve (2)

Figure 7: Stereo view of the detacher of the present creation after the iron sleeve is removed

Figure 8 is a perspective view of another embodiment of the detacher of the present invention (the push sleeve, the first screw and the first nut are not shown)

Ninth view: a three-dimensional combination diagram of another embodiment of the detacher of the present invention (the push sleeve, the first screw and the first nut are not shown)

Figure 10: Front view of another embodiment of the detacher of the present invention when the iron sleeve is removed

Eleventh figure: a perspective view of another embodiment of the detacher of the present invention after the iron sleeve is removed

Twelfth Figure: An exploded view of the sleeve and the curved gasket of the detacher of the present invention

Thirteenth figure: combination diagram of the sleeve and the curved gasket of the disassembler of the present creation

Figure 14: Combination diagram of the detacher of the creation and the other direction of the curved gasket

In order to make the technical content, creative purpose and the effect achieved by this creation more complete and clear, please elaborate below, and please refer to the illustrated drawings and drawings: please refer to the first ~ Four maps.

The detacher of the iron sleeve of the trailing arm of the present invention mainly comprises: a pushing sleeve (1), a first screw (21), a first nut (22), a set of fittings (3), and a The clamping seat (4), the two clamping setting member (5) and the second screw (6); wherein: the pushing sleeve (1) is a sleeve having one end closed end (11) and the other end being an open end (12) The body has a first screw hole (13) at the closed end (11) of the push sleeve (1), and a butt flange (14) is formed at the port of the open end (12) of the push sleeve (1). Engaged with an iron sleeve (30) mounted in the sleeve (20) of the trailing arm; the first screw (21) has opposite first ends (211) and second ends (212), the first end (211) In order to screw with the first screw hole (13), the second end (212) of the first screw (21) passes through the iron sleeve (30) of the trailing arm, and then the first nut (22) is twisted to make the iron sleeve ( 30) between the pushing sleeve (1) and the first nut (22), and respectively pressing the pushing sleeve (1) and the first nut (22); the fitting (3) has a torus ( 31), the toroid (31) has a second screw hole (32), and the circumference of the torus (31) partially extends the curved wall (33), and the arc wall (33) is away from the torus (31) One end of the peripheral joint forms a snap-in flange (34), and the card is inserted. The flange (34) can be embedded at the junction of the iron sleeve (30) and the sleeve (20) of the trailing arm; The clamping seat (4) is arranged on the periphery of the fitting (3); The two-clamp setting position member (5) is a block body having a curvature and corresponding to each other, and the two-clamp setting position members (5) are respectively disposed at the inner surfaces of the two end portions of the clamping seat (4), and the facing members are clamped The surface of the seat (4) is an outer curved surface (51), and the surface facing the sleeve (20) and the fitting (3) is an inner curved surface (52), and the inner curved surface (52) has a class shape and has a first clamping surface (521), a second clamping surface (522), a first clamping surface (521) corresponding to the surface of the sleeve (20), a second clamping surface (522) and a fitting (3) Corresponding to the surface, the sleeve member (3) is clamped and fixed on the sleeve (20) by using the two clamp setting member (5); The second screw (6) is threaded through the second screw hole (32) of the sleeve member (3), and the second screw rod (6) is located at one end of the sleeve member (3) and is provided with a pushing member (61). The pusher (61) contacts the outer surface of the closed end (11) of the push sleeve (1); According to this, when the second screw (6) is rotated, the pushing member (61) of the second screw (6) can be pushed against the pushing sleeve (1), and will be subjected to the first screw ( 21) An iron sleeve (30) that is worn and clamped by the thrust sleeve (1) and the first nut (22) is pushed out of the sleeve (20) of the trailing arm.

Specifically, the clamping seat (4) has two corresponding locking holes (41), and the outer curved surface (51) of the two clamping setting parts (5) is provided with a positioning hole (53), and the two clamping setting parts The positioning holes (53) of (5) respectively correspond to the two locking holes (41) on the clamping seat (4), and the two positioning members (54) are further respectively inserted into the positioning holes after being locked into the two locking holes (41) respectively. (53), when the two locks (54) can be rotated The two-clamp setting member (5) has the function of clamping the fixing sleeve (3) and the sleeve (20).

Wherein, the end of the positioning member (54) is further provided with a concave ring (541), and the two clamping member (5) is provided with a locking hole (55) and a locking hole (55) for the front or rear facing wall surface. The locking member (56) is locked in the middle, and the limiting member (56) is protruded to the concave ring (541) of the positioning member (54), thereby assembling the positioning member (54) and the clamp setting member (5). It is integrated and not easily separated.

Further, the second screw (6) is provided with a receiving groove (62) at one end of the pushing member (61), a ball (63) is disposed in the receiving groove (62), and the pushing member (61) has a set a post (611), the socket rod (611) is embedded in the receiving groove (62), and is in contact with the ball (63) at the end of the socket rod (611) to accommodate the wall surface of the groove (62) A concave ring (621) is provided, and a C-shaped buckle (612) is sleeved on the socket rod (611). When the socket rod (611) is inserted into the receiving groove (62), the C-shaped buckle (612) is caught in the concave ring. In (621), the set of the pushing member (61) is set on the second screw (6), and the surface of the pushing sleeve (1) contacting the pushing member (61) forms a concave groove (15), and the concave groove ( The shape of 15) corresponds to the end face of the pusher sleeve (1) contacting the pushing member (61).

When removing the iron sleeve (30) in the sleeve (20) of the trailing arm, please refer to the third to seventh figures. First, the first end (211) of the first screw (21) is screwed to the first screw hole (13) of the push sleeve (1), and the second end (212) of the first screw (21) is again made. Pass the iron sleeve (30) of the trailing arm and the first screw (2) 1) Rotate the first nut (22) on the second end (212) outside the iron sleeve (30), and the open end (12) of the push sleeve (1) will be set with the iron sleeve (30). And engaging the butt flange (14) of the push sleeve (1) and engaging the iron sleeve (30) such that the iron sleeve (30) is located between the push sleeve (1) and the first nut (22), and The ejector sleeve (1) and the first nut (22) are clamped respectively; then, the second screw (6) is screwed through the second screw hole (32) of the sleeve member (3) to make the second The screw (6) is located in the sleeve (3), and the sleeve (3) is sleeved on the outside of the sleeve (20) of the trailing arm, and the flange of the curved wall (33) is embedded (34) The boundary between the embedded iron sleeve (30) and the sleeve (20) of the trailing arm is such that the curved wall (33) of the sleeve member (3) partially covers the sleeve (20), and the clamping seat (4) is continued. The sleeve is placed on the outer periphery of the sleeve member (3), and the first clamping surface (521) and the second clamping surface (522) of the two-clamp setting member (5) are respectively attached to the outer surface of the sleeve (20). The outer surface of the sleeve (3), and then the two positioning members (54) are respectively locked into the two locking holes (41) of the clamping seat (4) and further pushes the two clamping position members (5) respectively. , so that the two clamp setting parts (5) are clamped with the fixing sleeve (3) and the sleeve (20), and finally, The pushing member (61) of the two screw (6) contacts the outer surface of the closed end (11) of the pushing sleeve (1); at this time, the second screw (6) can be started to be rotated by the tool due to the fitting ( 3) The assembly relationship with the clamp setting member (5), the three are integrated into one body, and the sleeve (20) holding the trailing arm is in a stopped state, so the rotation of the second screw (6), The second screw (6) will be moved in the direction of the pushing sleeve (1), so that the pushing member (61) of the second screw (6) is pushed against the pushing sleeve (1), and then the pushing sleeve (1) The shifting iron sleeve (30) allows the iron sleeve (30) to be detached from the sleeve (20), The purpose of detaching the iron sleeve (30) from the sleeve (20) is achieved.

According to the above-mentioned implementation operation, the iron sleeve detacher of the present invention can be easily executed during the disassembly operation, and the structure between the iron sleeve (30) and the sleeve (20) is not damaged, and the iron sleeve (30) is ensured. The structure with the sleeve (20) is not destroyed.

Please refer to the eighth to eleventh pictures. Moreover, since the iron sleeve (30) and the sleeve (20) may have different outer diameter sizes due to different types of vehicles, in a preferred embodiment of the iron sleeve detacher of the trailing arm of the present invention, Solving the problem that even if the iron sleeve (30) and the sleeve (20) have different outer diameter sizes due to the difference of the vehicle type, the iron sleeve can be smoothly disassembled; that is, further on the curved wall of the sleeve (3) ( 33) The inner surface is provided with a curved gasket (35), and at the same time, the clamp setting member (5) of different class heights between the first clamping surface (521) and the second clamping surface (522) can be utilized. The curved gasket (35) reduces the inner diameter of the curved wall (33) of the fitting member (3), and the sleeve (20) having a small diameter is correspondingly fitted, and the clamp setting member (5) It is true that the fitting (3) and the sleeve (20) are interposed, and the operation of disassembling the iron sleeve (30) is smoothly performed. Wherein, the curved wall (33) is provided with at least two through holes (331), and the outer surface of the curved spacer (35) is provided with at least two insert columns (351), and the two insert columns (351) correspond to two through holes (331). And penetrating into the two perforations (331), positioning the curved spacer (35) on the inner surface of the curved wall (33) of the fitting (3).

Please refer to the twelfth to fourteenth pictures. Further, the protruding length of the stud (351) is greater than the thickness of the curved wall (33) of the fitting (3), so that the stud (351) After penetrating the perforation (331), the outer surface of the curved wall (33) can be protruded, so that when the curved spacer (35) is removed, the curved wall (33) can be directly protruded from the outside. The surface of the stud (351) is pressed in the direction of the curved wall (33), so that the curved shim (35) is modified to protrude inwardly from the inner surface of the curved wall (33) of the fitting (3), and A gap is created to facilitate the user to remove the curved gasket (35).

Furthermore, the magnetic element (352) may be further embedded in the curved spacer (35), and the curved wall (33) of the sleeve member (3) is made of iron material, and the magnetic element (352) can be made. The magnetic arc-shaped wall (33) improves the bonding stability between the curved gasket (35) and the fitting (3).

The above are only some of the examples of this creation, and are not intended to limit the creation of this creation. It should be included in the scope of this patent, based on the creative spirit and characteristics of this creation.

In summary, the present embodiment can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has fully complied with the provisions of the Patent Law. And the request, the application for a new type of patent in accordance with the law, please forgive the review, and grant the patent, it is really sensible.

(1) ‧‧‧ push sleeve

(11) ‧ ‧ closed end

(12) ‧ ‧ open end

(13)‧‧‧First screw hole

(14)‧‧‧Docking flange

(21)‧‧‧First screw

(211) ‧‧‧ first end

(212) ‧‧‧ second end

(22)‧‧‧First Nut

(3) ‧ ‧ sets of fittings

(31)‧‧‧Torus

(32)‧‧‧Second screw hole

(33)‧‧‧ curved wall

(34)‧‧‧Inlay flange

(4) ‧‧‧ 夹座

(5) ‧ ‧ clip setting parts

(51)‧‧‧Outer curved surface

(52)‧‧‧Inside curved surface

(521)‧‧‧First inlay face

(522)‧‧‧Second inlay face

(54)‧‧‧ Positioning parts

(6)‧‧‧Second screw

(61)‧‧‧Pushing pieces

(611)‧‧‧ Sockets

(612)‧‧‧C-shaped buckle

(62) ‧‧‧ accommodating slots

(63)‧‧‧ balls

Claims (9)

The detacher for the iron sleeve of the trailing arm comprises: a pushing sleeve, a first screw, a first nut, a set of fittings, a two-clamp setting member, a clamping seat, and a second screw; The ejector sleeve is a sleeve body having a closed end and an open end at one end, and has a first screw hole at the closed end; the first screw has opposite first ends and second ends, the first end For screwing with the first screw hole; the first nut is a second end of the first screw that passes through the iron sleeve of the trailing arm, so that the iron sleeve is located at the push sleeve And the first nut is respectively the top push sleeve and the first nut clamp; the sleeve has a ring surface, and the ring mask has a second screw hole, The peripheral edge of the torus partially extends an arcuate wall, the arcuate wall forming a snap-in flange at an end remote from the circumference of the torus, the card flange being capable of being embedded in the sleeve and the trailing arm a junction of the sleeve; the clip setting member is a block body having a curvature, and the surface facing the clamping seat is an outer curved surface facing the sleeve and the Surface of the sleeve member of the inner arc The inner curved surface has a first clamping surface and a second clamping surface, the first clamping surface corresponding to the sleeve surface, the second clamping surface and the Corresponding to the surface of the sleeve member, the sleeve member is clamped and fixed on the sleeve by the clip setting member; the clip seat is disposed at the periphery of the sleeve member, and the two ends thereof The second screw is threaded through the second screw hole of the sleeve member, and the second screw is disposed at one end of the sleeve member. Pushing member, the pushing member contacting an outer surface of the closed end of the pushing sleeve; accordingly, when the second screw is rotated, the pushing member of the second screw can be pushed against the pushing sleeve, The sleeve that is pierced by the first screw and is the top push sleeve and the first nut clamp is pushed out of the sleeve of the trailing arm. The detacher for the iron sleeve of the trailing arm of claim 1, wherein a curved gasket is disposed on an inner surface of the curved wall of the fitting member, and the curved gasket is used to reduce the The curved wall of the fitting has a long inner diameter. The detacher of the iron sleeve of the trailing arm of claim 2, wherein the curved wall is provided with at least two perforations, and the outer surface of the curved gasket is convexly corresponding to the perforation a post that penetrates into the perforation to position the curved shim on the inner surface of the curved wall. The detacher for the iron sleeve of the trailing arm of claim 3, wherein the curved gasket is provided with a magnetic element capable of magnetically absorbing the curved wall of the iron material. A detacher for an iron sleeve of a trailing arm according to claim 1, 2, 3 or 4, wherein a port at an open end of the urging sleeve is formed with a butt flange for engaging the iron sleeve . The detacher for the iron sleeve of the trailing arm according to claim 5, wherein the outer arc surface of the clip setting member is provided with a positioning hole, and the clamping seat has a corresponding locking hole. The two positioning members are further respectively embedded in the positioning holes after being respectively locked into the two locking holes, so that the two positioning members have the function of clamping and fixing. The detacher for the iron sleeve of the trailing arm according to claim 6, wherein the end of the positioning member is provided with a concave ring, and the two clamping members are disposed on the front or rear facing wall surface. a locking hole is locked into the limiting hole, and the limiting member protrudes to the concave ring, so that the positioning member and the clamping setting member are not easily separated. The detacher of the iron sleeve of the trailing arm of the seventh aspect of the invention, wherein the second screw is provided with a receiving groove at one end of the pushing member, and a ball is arranged in the receiving groove. The pusher has a set of posts, the sleeve is embedded in the receiving groove, and the end of the sleeve is in contact with the ball. The wall surface of the slot is provided with a concave ring, and the sleeve is sleeved with a C-shaped buckle. When the socket is inserted into the receiving slot, the C-shaped buckle is inserted into the concave ring. The set of pushers is set on the second screw. The detacher of the iron sleeve of the trailing arm of claim 8, wherein the ejector sleeve forms a concave groove for the surface of the pushing member, and the shape of the concave groove is The pushing member contacts the end surface of the pushing sleeve.