TWI508896B - Chain fixing joint positioning device - Google Patents

Description

Chain fixing joint positioning device

The present invention relates to a positioning device for a chain fixing joint, and more particularly to a positioning device which can make a fixing pin flush with a chain outside a chain and smoothly engage the two ends of the chain.

At present, the chain used in general bicycles, the combined structure of the two ends, such as the invention No. 502092 of the Republic of China on September 11, 91, "the device for inserting the engaging pin into the chain, especially in the bicycle chain", The device is adapted to insert an engagement pin for pivotally connecting the chain, in particular the outer and inner plates of the bicycle chain; the device comprises an engagement pin and a guiding element that engages the pin in the aligned hole of the plate Thereafter, it is separated from the pin; one end of the pin is provided with a snap portion which is shaped such that the hole of the outer plate expands in the radial direction when the pin is knocked in, thereby solving the problem of alignment of the inner and outer plates due to the pin being inserted into the chain. The problem caused by the break caused by the hole.

However, since the combination of the two ends of the chain may be combined after being manufactured in the factory, it may be that the consumer returns home after assembly and then assembles and combines, but in any combination, the combination must be used. The engaging pin is fitted to the guiding member, but since the guiding member does not visually detect the depth of the engaging pin entering the aligned hole of the inner and outer plates of the chain, it is not damaged by knocking too deep. , or it is too shallow and easy to fall off and separate, so it is used. The effect is not ideal.

Therefore, in view of the above-mentioned shortcomings of the chain joint fixing device, the present invention provides a positioning device for a chain fixing joint, which is provided with a fixing pin, which is respectively provided with a first end and a second end. The first end is provided with a joint portion, and the second end is provided with a force receiving portion; a guiding member is coupled to the joint portion of the fixing pin, and the guiding member is respectively provided with a third portion And a third end, the third end is provided with a positioning portion; a positioning seat is provided with a receiving plane, and the receiving plane is provided with a through hole for matching the cross-sectional shape of the guiding member The inner diameter of the through hole is larger than the outer diameter of the guiding member, the guiding member can pass through the through hole, and the inner diameter of the through hole is smaller than the outer diameter of the fixing pin. The fixing pin cannot pass through the through hole.

The joint portion is a recessed hole, and the positioning portion is a protrusion for extending through the recessed hole.

The joint portion is a screw hole, and the positioning portion is a screw for screwing into the screw hole.

The force receiving portion is a circular groove.

The cross-sectional shape of the guiding member and the through hole is a matching rectangular shape, a cross shape, a circular shape, a quadrangular shape, a plum shape, a star shape, a triangle shape, a pentagon shape, a diamond shape or a hexagon shape.

The receiving plane is spaced apart from the plurality of support sheets which are arranged in a wavy shape, and the through holes are located at positions between any two of the support sheets.

A guide block is obliquely protruded from the two sides of the third end.

The fourth end of the guiding member is provided with a pulling portion, and the pulling portion is coupled with a pulling cord.

The positioning seat is provided with a take-out opening penetrating the through hole, the width of the take-out port is greater than the maximum width of the guiding member, and the guiding member can pass through the take-out port.

The present invention may also be a positioning device for a chain fixing joint, comprising: a fixing pin respectively provided with a first end and a second end, wherein the second end is provided with a force receiving portion; a guiding member The guiding member is respectively coupled to the connecting portion of the fixing pin, and the guiding member is respectively provided with a third end and a fourth end, and the third end is integrally coupled to the first end of the fixing pin, the guiding A cutting portion is disposed between the third end of the guiding member and the first end of the fixing pin; a positioning seat is provided with a receiving plane, and the receiving plane is provided with a cross-sectional shape for engaging the guiding member The through hole, the inner diameter of the through hole is larger than the outer diameter of the guiding member, the guiding member can pass through the through hole, and the inner diameter of the through hole is smaller than the fixed pin The outer diameter, the fixing pin cannot pass through the through hole.

The invention has the following advantages:

1. The invention enables the first end and the second end of the fixing pin to be flush with the outer chain of the chain, without the fixing pin protruding from the outer chain or recessed in the outer chain Disadvantages in the pivotal holes of the sheet are created and the two ends of the chain can be smoothly joined.

2. The end face of the first end of the fixing pin of the present invention is impacted by the through hole of the positioning seat after being subjected to a force, and an imprint of the same cross-sectional shape as the through hole is formed, so that it can be used as a future patent. Whether or not the infringement is supported.

3. On both sides of the third end of the guiding member of the present invention, a guiding block is obliquely protruded respectively, so that the fixing pin can smoothly penetrate the outer chain piece and the inner chain by guiding the guiding block. The pivotal hole of the piece is inside.

4. The fourth end of the guiding member of the present invention is provided with a pulling portion, and the pulling portion is coupled with a pulling cord, and the connecting portion of the positioning portion of the guiding member and the fixing pin can be quickly moved by pulling the pulling rope Separate to achieve convenient operation.

(1) ‧ ‧ fixed pin

(11) ‧ ‧ first end

(12) ‧‧‧ second end

(13) ‧ ‧ joints

(14) ‧‧‧ Force Department

(2) ‧‧‧Guide

(21) ‧ ‧ third end

(22) ‧ ‧ fourth end

(23) ‧ ‧ Positioning Department

(3) ‧‧‧ Positioning Block

(31) ‧‧‧ Bearing plane

(32) ‧‧‧through holes

(33) ‧‧‧Support tablets

(34) ‧‧‧Export

(1A) ‧ ‧ fixed pin

(11A) ‧ ‧ first end

(12A) ‧‧‧ second end

(13A) ‧ ‧ Joint Department

(14A) ‧‧‧ Force Department

(2A) ‧‧‧Guide

(21A) ‧ ‧ third end

(22A) ‧ ‧ fourth end

(23A) ‧‧ Positioning Department

(24A)‧‧‧Guide blocks

(3A)‧‧‧ Positioning Block

(31A) ‧‧‧ Bearing plane

(32A) ‧‧‧through holes

(33A)‧‧‧Support film

(1B) ‧ ‧ fixed pin

(11B) ‧ ‧ first end

(12B) ‧‧‧ second end

(13B) ‧ ‧ Joint Department

(14B) ‧‧‧ Force Department

(2B) ‧‧‧Guide

(21B) ‧ ‧ third end

(22B) ‧ ‧ fourth end

(23B) ‧‧ Positioning Department

(25B) ‧‧‧ Pulling Department

(26B)‧‧‧Drawstring

(3B)‧‧‧ Positioning Block

(31B) ‧‧‧ Bearing plane

(32B) ‧‧‧through hole

(33B)‧‧‧Support film

(1C) ‧ ‧ fixed pin

(11C) ‧ ‧ first end

(15C) ‧ ‧ imprint

(2C)‧‧‧ Guides

(3C)‧‧‧ Positioning Block

(31C)‧‧‧ Bearing plane

(32C)‧‧‧through holes

(1D) ‧ ‧ fixed pin

(11D) ‧ ‧ first end

(15D) ‧ ‧ imprint

(2D)‧‧‧ Guides

(3D)‧‧‧ Positioning Block

(31D) ‧‧‧ Bearing plane

(32D)‧‧‧through holes

(1E) ‧ ‧ fixed pin

(11E) ‧ ‧ first end

(15E) ‧ ‧ imprint

(2E)‧‧‧ Guides

(3E)‧‧‧ Positioning Block

(31E) ‧‧‧ bearing plane

(32E) ‧‧‧through holes

(1F) ‧ ‧ fixed pin

(11F)‧‧‧ first end

(15F) ‧ ‧ imprint

(2F)‧‧‧ Guides

(3F)‧‧‧ Positioning Block

(31F)‧‧‧Holding plane

(32F)‧‧‧through holes

(1G) ‧ ‧ fixed pin

(11G) ‧ ‧ first end

(15G) ‧ ‧ imprint

(2G)‧‧‧ Guides

(3G)‧‧‧ Positioning Block

(31G) ‧‧ ‧ bearing plane

(32G) ‧‧‧through hole

(1H) ‧ ‧ fixed pin

(13H) ‧ ‧ Joint Department

(2H)‧‧‧ Guides

(23H)‧‧‧ Positioning Department

(1J) ‧ ‧ fixed pin

(11J) ‧ ‧ first end

(2J)‧‧‧ Guides

(21J) ‧ ‧ third end

(27J) ‧‧‧Truncate

(Y)‧‧‧ Tools

(Z) ‧ ‧ chain

(Z1)‧‧‧Outer link

(Z2)‧‧‧ Inner link

(Z3)‧‧‧Pivot hole

The first figure is an exploded perspective view of the first embodiment of the present invention.

The second drawing is a schematic view of the use of the first embodiment of the present invention.

The third figure is a schematic view of the guide member passing through the through hole according to the first embodiment of the present invention.

The fourth figure is a schematic view of forming a stamp on the first end of the fixing pin according to the first embodiment of the present invention.

The fifth drawing is an exploded perspective view of a second embodiment of the present invention.

The sixth drawing is a schematic view of the use of the second embodiment of the present invention.

The seventh drawing is an exploded perspective view of a third embodiment of the present invention.

The eighth figure is a schematic view of the guide member passing through the through hole according to the third embodiment of the present invention.

The ninth drawing is an exploded perspective view of a fourth embodiment of the present invention.

The tenth figure is a schematic view showing the formation of an imprint on the first end of the fixing pin according to the fourth embodiment of the present invention.

The eleventh drawing is an exploded perspective view of a fifth embodiment of the present invention.

Figure 12 is a schematic view showing the formation of an imprint on the first end of the fixing pin according to the fifth embodiment of the present invention.

The thirteenth drawing is an exploded perspective view of a sixth embodiment of the present invention.

Figure 14 is a schematic view showing the formation of an imprint on the first end of the fixing pin according to the sixth embodiment of the present invention.

The fifteenth diagram is an exploded perspective view of a seventh embodiment of the present invention.

Figure 16 is a schematic view showing the formation of an imprint on the first end of the fixing pin according to the seventh embodiment of the present invention.

Figure 17 is a perspective exploded view of an eighth embodiment of the present invention.

Figure 18 is a schematic view showing the formation of an imprint on the first end of the fixing pin according to the eighth embodiment of the present invention.

The nineteenth aspect is a schematic view showing the positioning portion and the joint portion of the ninth embodiment of the present invention being screwed together.

Figure 20 is a schematic view showing a cut-off portion between the first end of the fixing pin and the third end of the guiding member of the tenth embodiment of the present invention.

First, referring to the first figure, the first embodiment of the present invention includes a fixing pin (1), a guiding member (2) and a positioning seat (3), wherein: the fixing pin (1) is separately provided There is a first end (11) and a second end (12), the first end (11) is provided with a joint portion (13), the joint portion (13) is a recessed hole, and the second end ( 12) a force receiving portion (14) is provided, and the force receiving portion (14) is a concave portion groove.

a guiding member (2) is coupled to the joint portion (13) of the fixing pin (1), the cross-sectional shape of the guiding member (2) is a rectangle, and the guiding member (2) is separately provided There is a third end (21) and a fourth end (22), wherein the third end (21) is provided with a positioning portion (23), and the positioning portion (23) can be a protruding post for extending In the joint (13) of the fixing pin (1).

The positioning seat (3) is provided with a receiving plane (31), and the receiving plane (31) is provided with a through hole (32) matching the sectional shape of the guiding member (2), the through hole (32) The shape is also formed in a rectangular shape, and the inner diameter of the through hole (32) is larger than the outer diameter of the guiding member (2), so that the guiding member (2) can smoothly pass through the through hole (32). And the inner diameter of the through hole (32) is smaller than the outer diameter of the fixing pin (1), so that the fixing pin (1) cannot pass through the through hole (32), and the receiving plane (31) is further spaced The appropriate distance is provided with a plurality of undulating support pieces (33) which are arranged at a position between any two support pieces (33) and outside the positioning seat (3). The edge is provided with a take-out opening (34) extending through the through hole (32), and the width of the take-out opening (34) is greater than the maximum width of the guiding member (2), so that the guiding member (2) can pass Take the exit (34).

When in use, as shown in the second figure, it is to align the hinge hole (Z1) of the two ends of the chain (Z) and the pivot hole (Z3) of the inner chain piece (Z2), and place them Putting on the bearing plane (31) of the positioning seat (3), and supporting each supporting piece (33) of the positioning seat (3) to support each outer chain piece (Z1) and the inner chain piece In the gap between (Z2), the positioning portion (23) of the guiding member (2) and the third end (21) thereof is passed through the through hole (32) of the positioning seat (3), and the The guiding member (2) protrudes through the outer chain piece (Z1) of the chain (Z) and the pivot hole (Z3) of the inner chain piece (Z2), and then the joint portion (13) of the fixing pin (1) Combining with the positioning portion (23) of the guiding member (2), and using a tool (Y) for the The force receiving portion (14) of the fixing pin (1) applies pressure so that the fixing pin (1) can be smoothly penetrated into the outer chain piece (Z1) by the guiding action of the guiding member (2). In the pivot hole (Z3) of the chain piece (Z2), since the inner diameter of the through hole (32) of the positioning seat (3) is larger than the outer diameter of the guiding member (2), the guiding member can be made (2) smoothly passing through the through hole (32) (as shown in the third figure), and the inner diameter of the through hole (32) is smaller than the outer diameter of the fixing pin (1), so that the fixing pin (1) The through hole (32) cannot pass through, so that the first end (11) and the second end of the fixing pin (1) can be flush with the chain (Z1) outside the chain (Z) without There is a disadvantage that the fixing pin (1) protrudes from the outer chain piece (Z1) or is recessed in the pivot hole (Z3) of the outer chain piece (Z1), and is additionally provided by the fixing pin (1) On the end surface of the first end (11), because of the impact on the through hole (32) of the positioning seat (3) after the force is applied, a rectangular mark having the same cross-sectional shape as the through hole (32) is formed (15). [As shown in the fourth figure], when the assembled chain (Z) is finally taken out, the guiding member (2) can be conveniently taken through the outlet (34) of the positioning seat (3). Out, then the fixing pin (1) of the coupling portion (13) separated from the guide member (2) of the positioning portion (23), to complete the chain (Z) of the two ends of a smooth blend.

A second embodiment of the present invention, as shown in the fifth figure, includes: a fixing pin (1A) respectively provided with a first end (11A) and a second end (12A), the first end (11A) The joint portion (13A) is a recessed hole, and the second end (12A) is provided with a force receiving portion (14A). The force receiving portion (14A) is a circle. Groove.

a guiding member (2A) is coupled to the joint portion (13A) of the fixing pin (1A), the cross-sectional shape of the guiding member (2A) is a rectangle, and the guiding member (2A) is separately provided There is a third end (21A) and a fourth end (22A), wherein the third end (21A) is provided with a positioning portion (23A), and the positioning portion (23A) can be a protruding post for extending In the solid In the joint portion (13A) of the pin (1A), a guide block (24A) is obliquely protruded from the two sides of the third end (21A).

The positioning seat (3A), as shown in FIG. 6, is provided with a receiving plane (31A), and the receiving plane (31A) is provided with a through hole (32A) matching the sectional shape of the guiding member (2A). The inner diameter of the through hole (32A) is larger than the outer diameter of the guiding member (2A), and the inner diameter of the through hole (32A) is smaller than the outer diameter of the fixing pin (1A), and the bearing is spaced apart The appropriate distance between the planes (31A) is provided with a plurality of wavy support pieces (33A) which are located just at the position between any two support pieces (33A).

In use, as shown in the six figures, when the guiding member (2A) passes through the chain (Z) outer chain piece (Z1) and the inner chain piece (Z2) pivot hole (Z3), the fixing pin is then used. The joint portion (13A) of (1A) is coupled to the positioning portion (23A) of the guide member (2A), and when the tool (Y) is used to apply pressure to the force receiving portion (14A) of the fixing pin (1A) The fixing pin (1A) can be smoothly penetrated into the outer chain piece (Z1) and the inner chain piece (Z2) by the guiding action of the guiding piece (24A) of the guiding member (2A). In the hole (Z3), the first end (11A) and the second end (12A) of the fixing pin (1A) can be flush with the chain piece (Z1) outside the chain (Z), and the The two ends of the chain (Z) are combined.

A third embodiment of the present invention, as shown in the seventh figure, includes: a fixing pin (1B) respectively provided with a first end (11B) and a second end (12B), the first end (11B) Is provided with a joint portion (13B) which is a recessed hole, and the second end (12B) is provided with a force receiving portion (14B) which is a circle Groove.

a guiding member (2B) coupled to the joint portion (13B) of the fixing pin (1B), The guiding member (2B) has a rectangular shape, and the guiding member (2B) is respectively provided with a third end (21B) and a fourth end (22B), wherein the third end (21B) is A positioning portion (23B) is provided, and the positioning portion (23B) can be a protrusion for being inserted or screwed into the joint portion (13B) of the fixing pin (1B), and the fourth end (22B) A pull portion (25B) is attached, and a pull cord (26B) is coupled to the pull portion (25B).

The positioning seat (3B), as shown in the eighth figure, is provided with a receiving plane (31B), and the receiving plane (31B) is provided with a through hole (32B) matching the sectional shape of the guiding member (2B). And the inner diameter of the through hole (32B) is larger than the outer diameter of the guiding member (2B), and the inner diameter of the through hole (32B) is smaller than the outer diameter of the fixing pin (1B), A plurality of undulating support pieces (33B) are arranged above the receiving plane (31B), and the through holes (32B) are located just below the position between any two supporting pieces (33B).

When in use, as shown in the eighth figure, when the tool (Y) is used to apply pressure to the force receiving portion (14B) of the fixing pin (1B), the first end (11B) and the first end of the fixing pin (1B) are applied. After the two ends are flush with the chain piece (Z1) outside the chain (Z), the pulling rope (26B) can be pulled, thereby pulling the pulling portion (25B) to position the guiding member (2B). The joint portion (13B) of the (23B) and the fixing pin (1B) can be quickly separated to achieve a convenient operation.

According to a fourth embodiment of the present invention, as shown in the ninth embodiment, the cross-sectional shape of the guiding member (2C) is set to a cross shape, and a bearing plane (31C) of the positioning seat (3C) is provided with a matching The through hole (32C) of the cross-sectional shape of the guiding member (2C), the shape of the through hole (32C) is also formed in a cross shape, and the inner diameter of the through hole (32C) is larger than the guiding member (2C) The outer diameter of the guide member (2C) can smoothly pass through the through hole (32C), and the inner diameter of the through hole (32C) is smaller than the outer diameter of the fixing pin (1C), so that the fixing pin (1C) cannot pass through the through hole (32C), thereby borrowing the first end (11C) of the fixing pin (1C) On the end face, because of the impact on the through hole (32C) of the positioning seat (3C) after the force is applied, a cross-shaped mark (15C) having the same cross-sectional shape as the through hole (32C) is formed (such as the tenth Figure shows].

According to a fifth embodiment of the present invention, as shown in the eleventh figure, wherein the guiding member (2D) has a circular cross-sectional shape, and a seating surface (31D) of the positioning seat (3D) is provided with a fit. The through hole (32D) of the cross-sectional shape of the guiding member (2D), the through hole (32D) is also formed in a circular shape, and the inner diameter of the through hole (32D) is larger than the guiding member ( 2D) the outer diameter of the guide member (2D) can smoothly pass through the through hole (32D), and the inner diameter of the through hole (32D) is smaller than the outer diameter of the fixing pin (1D), so that the fixing The pin (1D) cannot pass through the through hole (32D), so that the end face of the first end (11D) of the fixing pin (1D) is generated by the through hole (32D) of the positioning seat (3D) after the force is applied. In the impact, a circular imprint (15D) having the same cross-sectional shape as the through hole (32D) is formed (as shown in Fig. 12).

According to a sixth embodiment of the present invention, as shown in the thirteenth embodiment, the cross-sectional shape of the guiding member (2E) is set to a quadrangular shape, and a bearing plane (31E) of the positioning seat (3E) is provided with a matching portion. a through hole (32E) having a cross-sectional shape of the guiding member (2E), the through hole (32E) is also formed in a quadrangular shape, and the inner diameter of the through hole (32E) is larger than the guiding member (2E) The outer diameter of the guide member (2E) can smoothly pass through the through hole (32E), and the inner diameter of the through hole (32E) is smaller than the outer diameter of the fixing pin (1E), so that the fixing pin ( 1E) cannot pass through the through hole (32E), so that the end surface of the first end (11E) of the fixing pin (1E) is impacted by the through hole (32E) of the positioning seat (3E) after being pressed. A quadrilateral imprint (15E) having the same cross-sectional shape as the through hole (32E) is formed (as shown in Fig. 14).

A seventh embodiment of the present invention, as shown in the fifteenth figure, wherein the guiding member (2F) The cross-sectional shape is set to a quincunx shape, and the receiving plane (31F) of the positioning seat (3F) is provided with a through hole (32F) matching the cross-sectional shape of the guiding member (2F), and the through hole (32F) The shape is also formed in a quincunx shape, and the inner diameter of the through hole (32F) is larger than the outer diameter of the guiding member (2F), so that the guiding member (2F) can smoothly pass through the through hole (32F). The inner diameter of the through hole (32F) is smaller than the outer diameter of the fixing pin (1F), so that the fixing pin (1F) cannot pass through the through hole (32F), thereby being the first of the fixing pin (1F) On the end face of the end (11F), since it is struck by the through hole (32F) of the positioning seat (3F) after being forced, a plum-shaped imprint (15F) having the same cross-sectional shape as the through hole (32F) is formed. [As shown in Figure 16].

According to an eighth embodiment of the present invention, as shown in FIG. 17, wherein the cross-sectional shape of the guiding member (2G) is set to a star shape, and a matching plane (31G) of the positioning seat (3G) is provided with a matching The through hole (32G) of the cross-sectional shape of the guiding member (2G), the through hole (32G) is also formed in a star shape, and the inner diameter of the through hole (32G) is larger than the guiding member ( 2G) outer diameter, the guide member (2G) can smoothly pass through the through hole (32G), and the inner diameter of the through hole (32G) is smaller than the outer diameter of the fixing pin (1G), so that the fixing The pin (1G) cannot pass through the through hole (32G), so that the end face of the first end (11G) of the fixing pin (1G) is generated by the through hole (32G) of the positioning seat (3G) after the force is applied. In the case of impact, a star-shaped imprint (15G) having the same cross-sectional shape as the through hole (32G) is formed (as shown in Fig. 18).

The cross-sectional shape of the guiding member and the through hole may also be various geometric shapes such as a triangle, a pentagon, a diamond or a hexagon, and the same effect can be achieved.

According to a ninth embodiment of the present invention, as shown in FIG. 19, the joint portion (13H) of the fixing pin (1H) is a screw hole, and the positioning portion (23H) of the guide member (2H) is a screw that is screwed together for the positioning portion (23H) to be screwed to the fixing Inside the joint (13H) of the pin (1H).

According to a tenth embodiment of the present invention, as shown in the twentieth diagram, the fixing pin (1J) is integrally formed with the guiding member (2J), wherein the third end of the guiding member (2J) (21J) a tapered portion (27J) is disposed between the first end (11J) of the fixing pin (1J), and the fixing pin (1J) penetrates the chain (Z) outer chain piece (Z1) a pivot hole (Z3) of the inner link piece (Z2), and then an external force is applied to the cut portion (27J) to be broken, thereby separating the guide member (2J) from the fixed pin (1J), and The fixing pin (1J) is still retained in the outer link piece (Z1) and the pivot hole (Z3) of the inner chain piece (Z2), and the two ends of the chain (Z) can be smoothly combined.

However, the above description is only a few of the embodiments of the present invention, and the scope of the patent application and the scope of the description of the present invention are not limited thereto. It is still within the scope of the protection covered by the scope of the invention.

(1) ‧ ‧ fixed pin

(11) ‧ ‧ first end

(12) ‧‧‧ second end

(13) ‧ ‧ joints

(14) ‧‧‧ Force Department

(2) ‧‧‧Guide

(21) ‧ ‧ third end

(22) ‧ ‧ fourth end

(23) ‧ ‧ Positioning Department

(3) ‧‧‧ Positioning Block

(31) ‧‧‧ Bearing plane

(32) ‧‧‧through holes

(33) ‧‧‧Support tablets

(34) ‧‧‧Export

Claims (9)

A positioning device for a chain fixing joint includes: a fixing pin respectively provided with a first end and a second end, wherein the first end is provided with a joint portion, and the second end is provided with a receiving portion a guiding member is coupled to the joint portion of the fixing pin, the guiding member is respectively provided with a third end and a fourth end, and the third end is provided with a positioning portion. The fourth end is provided with a pulling portion, and the pulling portion is coupled with a pulling cord; a positioning seat is provided with a receiving plane, and the receiving plane is provided with a cross-sectional shape for engaging the guiding member The through hole, the inner diameter of the through hole is larger than the outer diameter of the guiding member, the guiding member can pass through the through hole, and the inner diameter of the through hole is smaller than the fixed pin The outer diameter, the fixing pin cannot pass through the through hole. The positioning device of the chain fixing joint according to the first aspect of the invention, wherein the joint portion is a recessed hole, and the positioning portion is a protrusion for extending through the recessed hole. The positioning device of the chain fixing joint according to the first aspect of the invention, wherein the joint portion is a screw hole, and the positioning portion is a screw for screwing into the screw hole. The positioning device of the chain fixing joint according to Item 1, wherein the force receiving portion is a circular groove. The positioning device for the chain fixing joint according to Item 1, wherein the guiding member and the through hole have a cross-sectional shape which is matched with a rectangular shape, a cross shape, a circular shape, a quadrangular shape, a plum shape, and a star shape. , triangle, pentagon, diamond or hexagon. The positioning device of the chain fixing joint according to Item 1, wherein the receiving plane is provided with a plurality of continuous wavy supporting pieces, and the through holes are located at any two supporting pieces. Between the locations. The positioning device of the chain fixing joint according to Item 1, wherein the guiding member is obliquely convexly disposed on two sides of the third end. The positioning device of the chain fixing joint according to claim 1, wherein the positioning seat is provided with a take-out opening penetrating the through hole, and the width of the take-out port is greater than the maximum width of the guiding member. The guide member is capable of passing through the take-out port. A positioning device for a chain fixing joint comprises: a fixing pin respectively provided with a first end and a second end, wherein the second end is provided with a force receiving portion; a guiding member is coupled to a connecting portion of the fixing pin, the guiding member is respectively provided with a third end and a fourth end, the third end is integrally coupled to the first end of the fixing pin, and the third of the guiding member a cutting portion is disposed between the end and the first end of the fixing pin; a positioning seat is provided with a receiving plane, and the receiving plane is provided with a through hole for matching the cross-sectional shape of the guiding member. The inner diameter of the through hole is larger than the outer diameter of the guiding member, the guiding member can pass through the through hole, and the inner diameter of the through hole is smaller than the outer diameter of the fixing pin, The fixing pin cannot pass through the through hole.