Fastening device for different components

Abstract

The present invention relates to a coupling device for heterogeneous components, and more specifically, to a coupling device for heterogeneous components comprising: a first component having a through path formed at a connecting end, which secures and fixes a connecting portion of a first component and a second component that are different heterogeneous components by penetrating it and maintains a fixed state by elastic pressure; a second component having an insertion groove into which the connecting end of the first component is inserted, and an inlet hole and an outlet hole formed on both sides facing the insertion groove so as to be in communication through the through path; a connecting unit that secures and fixes or releases the coupling according to a rotational operation position while inserted to reach the inlet hole, the through path, and the outlet hole; and a damper consisting of a single elastic pressure body located on one side of the connecting unit, which contracts or returns to its original state relative to the connecting unit according to the rotational operation of the connecting unit, thereby preventing rotation of the connecting unit and maintaining a fixed state.

Description

Technology Field

[0001] The present invention relates to a device for fastening heterogeneous components, and more specifically, to a device for fastening heterogeneous components that fastens and fixes a connection portion of a first component and a second component, which are different heterogeneous components, by penetrating it, and maintains the fixed state by elastic pressure. Background Technology

[0002] Excavation devices, such as excavators used in public works or mines, are used to dig up soil and stones and to transport and stack the excavated materials to other locations or the cargo beds of vehicles.

[0003] Such excavation devices are generally equipped with a bucket that is coupled to a mechanical arm and used to dig up the ground or scoop up soil or stones.

[0004] The ends of these buckets are equipped with multiple tooth points used for digging up and crushing soil or stones.

[0005] At this time, the tooth point is fitted into the tip of each of the multiple tooth adapters connected to the bucket, and a separate connecting unit passes through the fitted part as described above to secure it.

[0006] When excavation operations are performed using such an excavation device, direct excavation actions, such as digging the excavation site and scooping out soil and stones, are carried out by the tooth points; therefore, wear occurs on the tooth points as time passes.

[0007] Therefore, when the degree of wear of the tooth point exceeds a certain state, the tooth point must be replaced to ensure smooth excavation operation and protect the excavator; at this time, the connecting unit is disconnected, and the tooth point is detached from the tooth adapter and replaced. Prior art literature

[0008] Republic of Korea Published Patent No. 10-2006-0011366 (Title: Tooth for Excavator Bucket / Date of Publication: February 3, 2006) The problem to be solved

[0009] The present invention aims to provide a structurally improved heterogeneous component fastening device that firmly maintains the fastening fixing force of a connecting unit that penetrates and connects a first component and a second component, which are heterogeneous components.

[0010] In addition, another objective of the present invention is to provide a structurally improved heterogeneous component fastening device that prevents the lifespan, including deformation and breakage, of the fastening fixing part, particularly the damper part which maintains a fixed state while preventing rotation of the connecting unit while contracting or returning to its original state (resilient pressure) with respect to the connecting unit during use in a high-temperature environment.

[0011] In addition, another objective of the present invention is to provide a heterogeneous component fastening device with a structurally improved design that simplifies the structure of the damper to facilitate manufacturing and use. means of solving the problem

[0012] The present invention comprises a first component having a through path formed at a connecting end;

[0013] An insertion groove into which the connecting end of the first component is inserted, and a second component having an inlet hole and an outlet hole formed on both sides facing the insertion groove so as to be connected by the through path;

[0014] A connecting unit that fastens or releases according to a rotational operation position while inserted to reach the above-mentioned inlet hole, through path, and outlet hole;

[0015] It may include a damper consisting of a single elastic pressure body located on one side of the above-mentioned connecting unit, which contracts or returns to its original state relative to the connecting unit according to the rotational operation of the connecting unit, thereby preventing rotation of the connecting unit and maintaining a fixed state.

[0016] The first component of the present invention may be a tooth adapter connected and fixed to an excavator bucket.

[0017] In the present invention, the second component may be a tooth point that is fitted and coupled to the connecting end of the tooth adapter tip.

[0018] In the present invention, the connecting unit may have a connecting pin with a small diameter formed on one side of a head with a relatively large diameter, wherein the head is inserted into and positioned in an inlet hole formed on one side of a second component, and the connecting pin penetrates a through path formed in a first component and reaches an outlet hole formed on the other side of the second component.

[0019] The connecting unit of the present invention may have a first plane and a second plane formed by cutting a portion of the head surface that contacts the fastening pin, forming a 90-degree angle with each other, a curved surface formed at the corner of the first plane and the second plane, and a locking member protruding from the head surface facing the second plane.

[0020] The first plane of the present invention may be in contact with the damper during the initial insertion and release of the connection unit.

[0021] The second plane of the present invention may come into contact with the damper when fastened and fixed by rotational operation of the connecting unit.

[0022] The first plane and the second plane of the present invention may be in contact with the damper in a non-pressurized state.

[0023] The first plane and the second plane of the present invention may be pressurized by the elastic pressure of the damper to prevent flow of the connecting unit.

[0024] The curved surface of the present invention may be a locking device that overcomes the elastic pressure of the damper and moves its position only when the connecting unit is forcibly rotated, thereby allowing the direction change between the first plane and the second plane to occur, and maintains that state until the connecting unit is forcibly rotated.

[0025] The length 'L' from the center point of the connecting unit of the present invention to the curved surface may be longer than the lengths 'l1, l2' from the center point to the first and second planes.

[0026] The locking member of the present invention may be inserted through a fitting groove formed in an inlet hole, and may move along an arc-shaped guide groove formed along the direction of rotation on the inner surface of the inlet hole during rotational operation of the connecting unit to perform a locking operation.

[0027] In the present invention, the damper may have three parallel rows of first, second, and third action surfaces spaced apart, and the first action surface and the second action surface may be connected at the bottom, and the second action surface and the third action surface may be connected at the top, forming a zigzag shape.

[0028] The damper of the present invention is ' It may be formed in the shape of '

[0029] The damper of the present invention is ' It may be formed in the shape of '

[0030] The damper of the present invention may be made of a metal material.

[0031] The damper of the present invention may be such that when the connecting unit is rotated counterclockwise and pressurized for fastening and fixing, the upper part of the first working surface is pressed and contracts, when the connecting unit is rotated at a 45-degree angle and pressurized, the lower part of the second working surface contracts, and when the connecting unit is rotated at a 90-degree angle and pressurized, it returns to its original state by elastic force, thereby maintaining the fastening and fixing state of the connecting unit, and when the connecting unit is rotated clockwise and pressurized for release and detachment, the lower part of the second working surface is pressed and contracts, when the connecting unit is rotated at a 45-degree angle and pressurized, the lower part of the second working surface contracts further, and when the connecting unit is rotated at a 90-degree angle and pressurized, it returns to its original state by elastic force, thereby making the connecting unit capable of release and detachment.

[0032] The damper of the present invention may be fixed in a receiving space formed in communication with one side of the inlet hole into which the connecting unit is inserted.

[0033] The damper of the present invention may be in a corresponding contact with a connecting unit through a communication portion of the receiving space.

[0034] The damper of the present invention may be fixed within the receiving space by its own elastic force.

[0035] The damper of the present invention may be prevented from detaching after being received by a protrusion formed at the bottom of the receiving space.

[0036] The damper of the present invention may have one upper end fitted and fixed to a mounting pin protruding above the receiving space during the process of being received in the receiving space.

[0037] The damper of the present invention may have one end fitted and fixed to a fixed projection vertically protruding from the rear of the receiving space during the process of being received in the receiving space. Effects of the invention

[0038] The present invention achieves the effect of firmly maintaining the fastening and fixing force of the first component (110) and the second component (120), which are heterogeneous components, by ensuring that the connecting unit (130) penetrates the connection portion of the first component (110) and the second component (120) and is fixed through rotational operation, and that the damper (140) provides a resilient pressure force to the connecting unit (130) to prevent rotation or movement detachment.

[0039] The present invention achieves the effect of enabling easy fastening and fixing of the tooth adapter (110), which is the first component (110), and easy release and separation when replacing, by ensuring that the tooth point (120), which is the second component, is inserted into the connecting end (111), which is the tip of the tooth adapter (110), which is the first component (110), and then inserted through the inlet hole (122) formed on one side of the tooth point (120), which is the second component, and then inserted through the through path (112) formed in the tooth adapter (110), which is the first component, and reaches the outlet hole (123) formed on the other side of the tooth point (120), which is the second component, and then rotated and maintained in that state by the elastic pressure of the damper (140).

[0040] The present invention relates to the above damper, ' ' or ' By being composed of a single unit of the ' shape, the structure is simplified, making manufacturing and installation easy. Furthermore, since operation is simple when installed, it achieves the effect of minimizing operational errors.

[0041] The present invention achieves the effect of minimizing deformation or breakage due to thermal stress during use in a high-temperature environment by making the damper a heat-resistant metal material, and also minimizing the shortening of its lifespan as a result. Brief explanation of the drawing

[0042] FIG. 1 is a perspective view illustrating the configuration of the present invention. FIG. 2 is an exploded perspective view illustrating the configuration and application example of the present invention. FIG. 3 is an exploded perspective view illustrating the configuration and application example of the present invention. FIG. 4 is a front view of the head portion illustrating the lengths of the first and second planes and the curved surface of the connecting unit in the present invention. FIG. 5 is a partially exploded perspective view and a front view illustrating an example of the fixing structure and fixing state of a damper in the present invention. FIG. 6 is a partially exploded perspective view and a front view illustrating another example of the fixing structure and fixing state of the damper in the present invention. FIG. 7 is a partially exploded perspective view and a front view illustrating another example of the fixing structure and fixing state of the damper in the present invention. FIGS. 8 to 11 are front views illustrating the locking and fixing operation states of the present invention in steps. FIGS. 12 to 15 are front views illustrating the release separation operation states of the present invention in steps. Specific details for implementing the invention

[0043] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components regardless of drawing symbols are assigned the same reference number, and redundant descriptions thereof will be omitted. Furthermore, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art could obscure the essence of the embodiments disclosed in this specification, such detailed description will be omitted.

[0044] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0045] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0046] In this application, each step described may be performed regardless of the order listed, except where it must be performed in the order listed by a particular causal relationship.

[0047] In this application, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0049] Hereinafter, basic embodiments of the present invention will be described with reference to the accompanying drawings.

[0050] First, the heterogeneous component fastening device (100) of the present invention comprises, as illustrated in the attached drawings FIGS. 1 to 3, a first component (110) having a through path (112) formed at a connecting end (111) which is one end; a second component (120) having an insertion groove (121) into which the connecting end (111) of the first component (110) is inserted, and an inlet hole (122) and an outlet hole (123) formed on both sides facing the insertion groove (121) so as to be in communication through the through path (112); and a connecting unit (130) that fastens or releases the component according to a rotational operation position while inserted to reach the inlet hole (122), the through path (112), and the outlet hole (123). It may include a damper (140) consisting of a single elastic pressure body located on one side of the above-mentioned connecting unit (130), which contracts or returns to its original state according to the rotational operation of the above-mentioned connecting unit (130), thereby preventing rotation and maintaining a fixed state of the above-mentioned connecting unit (130).

[0051] In the present invention, the first component (110) may be a tooth adapter that is connected and fixed to an excavator bucket.

[0052] In the present invention, the second component (120) may be a tooth point that is fitted and coupled to the connecting end of the tooth adapter tip.

[0053] In the present invention, the connecting unit (130) may have a connecting pin (132) with a small diameter formed on one side of a head (131) with a relatively large diameter, wherein the head (131) is inserted into an inlet hole (122) formed on one side of a second component (120), and the connecting pin (132) penetrates a through path (112) formed in a first component (110) and reaches an outlet hole (123) formed on the other side of the second component (120).

[0054] The connecting unit (130) of the present invention may have a first plane (133) and a second plane (134) formed by cutting a portion of the head (131) that contacts the fastening pin (132) to form a 90-degree angle with each other, a curved surface (135) formed at the corner of the first plane (133) and the second plane (134), and a locking member (136) protrudingly formed on the head surface facing the second plane (134).

[0055] In the present invention, the damper (140) may have three parallel rows of first, second, and third action surfaces (141, 142, 143) spaced apart, and the first action surface (141) and the second action surface (142) may be connected at the bottom, and the second action surface (142) and the third action surface (143) may be connected at the top, forming a zigzag shape.

[0056] The damper (140) of the present invention may be such that when the connecting unit (130) rotates from top to bottom and pressurizes, the upper part of the first working surface (141) is pressed and contracts, when the connecting unit (130) rotates further and pressurizes, the lower part of the second working surface (142) contracts, and when the connecting unit (130) rotates further and pressurizes, it returns to its original state by elastic force.

[0058] Specific embodiments of the present invention and their corresponding operations are described below with reference to the attached drawings.

[0059] First, the heterogeneous component fastening device (100) of the present invention comprises, as illustrated in the attached drawings FIGS. 1 to 3, a first component (110) having a through path (112) formed at a connecting end (111) which is one end; a second component (120) having an insertion groove (121) into which the connecting end (111) of the first component (110) is inserted, and an inlet hole (122) and an outlet hole (123) formed on both sides facing the insertion groove (121) so as to be in communication through the through path (112); and a connecting unit (130) that fastens or releases the component according to a rotational operation position while inserted to reach the inlet hole (122), the through path (112), and the outlet hole (123). A basic embodiment includes a damper (140) composed of a single elastic pressure body located on one side of the above-mentioned connecting unit (130), which contracts or returns to its original state according to the rotational operation of the above-mentioned connecting unit (130), thereby preventing rotation of the above-mentioned connecting unit (130) and maintaining a fixed state.

[0060] In this invention, the connecting unit (130) penetrates the connection portion of the first component (110) and the second component (120) and is secured through rotational operation, and the damper (140) provides a resilient pressure force to the connecting unit (130) to prevent rotation or displacement, thereby making it possible to firmly maintain the securing force between the first component (110) and the second component (120), which are different components.

[0061] Here, the first component (110) of the present invention is exemplified as a tooth adapter connected and fixed to an excavator bucket, as shown in the attached drawing Fig. 2.

[0062] Meanwhile, the second component (120) of the present invention is exemplified as a tooth point that is fitted and coupled to the connecting end of the tooth adapter tip, as shown in the attached drawing Fig. 2.

[0063] In addition, as a detailed embodiment of the present invention, the connecting unit (130) has a connecting pin (132) with a small diameter formed on one side of a head (131) with a relatively large diameter, the head (131) is inserted into and positioned in an inlet hole (122) formed on one side of a second component (120), and the connecting pin (132) passes through a through path (112) formed in a first component (110) and reaches an outlet hole (123) formed on the other side of the second component (120).

[0064] The connecting unit (130) formed as described above is configured such that the tooth point of the second component (120) is inserted into the connecting end (111), which is the tip of the tooth adapter fixed to the bucket of the excavator, which is the first component (110), and is inserted through the inlet hole (122) formed on one side of the tooth point of the second component (120), then passes through the through path (112) formed in the tooth adapter of the first component (110) and reaches the outlet hole (123) formed on the other side of the tooth point of the second component (120), and is rotated and maintained in that state by the elastic pressure of the damper (140), thereby enabling easy fastening and fixing of the tooth adapter of the first component (110) and the tooth point of the second component (120), and easy release and separation when replacing.

[0065] In this case, as shown in the attached drawings FIG. 3 and FIG. 4, the connecting unit (130) of the present invention is formed by cutting a first plane (133) and a second plane (134) that form a 90-degree angle with each other on a part of the head (131) that contacts the fastening pin (132), a curved surface (135) is formed at the corner of the first plane (133) and the second plane (134), and a locking member (136) is formed protrudingly on the head surface facing the second plane (134) as a detailed embodiment.

[0066] At this time, the first plane (133) of the present invention comes into contact with the damper (140) when the insert of the connecting unit (130) is initial and released, and at this time, the connecting unit (130) is in a state where it can be detached from the penetrating portion.

[0067] At this time, the second plane (134) of the present invention also moves to a position in contact with the damper (140) when fixed by rotational operation of the connecting unit (130) and maintains that state.

[0068] At this time, as a detailed embodiment, the first plane (133) and the second plane (134) are in contact with the damper (140) in a non-pressurized state, and in this way, the connection unit (130) can be easily inserted into and removed from the penetration area.

[0069] In addition, as a detailed other embodiment, the first plane (133) and the second plane (134) are pressurized by the elastic pressure of the damper (140) to prevent movement of the connecting unit (130), and in this case, the elastic pressure of the damper (140) is satisfied unless it is difficult to insert the connecting unit (130) into the penetration area, and in this case, unintended detachment or movement is prevented by the pressure of the damper (140) while the connecting unit (130) is inserted into the penetration area.

[0070] At this time, as shown in the attached drawing Fig. 4, the length 'L' from the center point of the connecting unit (130) to the curved surface (135) is preferably longer than the lengths 'l1, l2' from the center point to the first and second planes (133, 134) ('l' is the lowercase alphabet 'L').

[0071] The curved surface (135) described above overcomes the elastic pressure of the damper (140) and moves its position only when the connecting unit (130) is subjected to forced rotation operation, thereby allowing the direction of the first plane (133) and the second plane (134) to be changed, and maintains its state until the connecting unit (130) is subjected to forced rotation operation, and corresponds to a locking device for this purpose.

[0072] As described above, the connecting unit (130) has a surface formed by cutting the first plane (133) and the second plane (134) so ​​that they form a 90-degree angle on the circular head (131), and a curved surface (135) having a certain width is formed at the corner where the first plane (133) and the second plane (134) meet. At this time, the length 'L' from the center point of the connecting unit (130) to the curved surface (135) is longer than the lengths 'l1, l2' from the center point to the first and second planes (133, 134), so that the curved surface (135) presses and pushes the damper (140) and rotates only when a force greater than a certain amount is applied to the connecting unit (130) to forcibly rotate it, and rotation or movement is prevented when rotation is not operated with a force greater than a certain amount.

[0073] In addition, as a detailed embodiment, the locking member (136) of the present invention is inserted through a fitting groove (124) formed in the insertion hole (122), and when the connecting unit (130) is rotated, it moves along an arc-shaped guide groove (125) formed along the rotational direction on the inner surface of the insertion hole (122) to perform a locking operation.

[0074] As described above, when the connecting unit (130) is rotated in the direction of the guide groove (125) while the locking member (136) is inserted through the fitting groove (124) formed in the insertion hole (122), it moves along the arc-shaped guide groove (125) formed on the inner surface of the insertion hole (122) and gets caught and locked, thereby preventing the connecting unit (130) from being detached in the direction of insertion while inserted into the penetration part.

[0075] In addition, as a detailed embodiment of the present invention, the damper (140) has three parallel rows of first, second, and third action surfaces (141, 142, 143) spaced apart, and the first action surface (141) and the second action surface (142) are connected at the bottom, and the second action surface (142) and the third action surface (143) are connected at the top, forming a zigzag shape.

[0076] At this time, the damper (140) of the present invention is ' ' or ' One example of a detailed embodiment is one made in the form of '.

[0077] As described above, the damper (140) of the present invention is ' ' or ' As it is composed of a single unit of the ' shape, the structure is simplified, making manufacturing and installation easy. Furthermore, since operation is simple when installed, the occurrence of operational errors is minimal.

[0078] In addition, the damper (140) of the present invention is preferably made of a metal material having heat resistance.

[0079] As described above, the damper (140) of the present invention is made of a heat-resistant metal material, thereby minimizing deformation or breakage due to thermal stress during use in a high-temperature environment, and also minimizing the shortening of the lifespan caused by this.

[0080] The damper (140) in this manner, when the connecting unit (130) is rotated counterclockwise and pressurized for fastening, the upper part of the first working surface (141) is pressed and contracts; when the connecting unit (130) is rotated at a 45-degree angle and pressurized, the lower part of the second working surface (142) contracts; and when the connecting unit (130) is rotated at a 90-degree angle and pressurized, it returns to its original state by elastic force, thereby maintaining the fastening and fixing state of the connecting unit (130); and when the connecting unit (130) is rotated clockwise and pressurized for release, the lower part of the second working surface (142) is pressed and contracts; when the connecting unit (130) is rotated at a 45-degree angle and pressurized, the lower part of the second working surface (142) contracts further; and when the connecting unit (130) is rotated at a 90-degree angle and pressurized, It is restored to its original state by elastic force, and the above-mentioned connection unit (130) becomes capable of being released and detached.

[0081] At this time, it is preferable that the damper (140) of the present invention be fixed in a receiving space (126) formed in communication with one side of the inlet hole (122) into which the connecting unit (130) is inserted.

[0082] At this time, it is preferable that the damper (140) be in contact with the connecting unit (130) through the communication portion of the receiving space (126).

[0083] At this time, as a detailed embodiment, the damper (140) is fixed in a state where it is pressed with a constant force within the receiving space (126) by its own elastic force, and in this way, it can be fixed to the receiving space (126) on its own without a separate fixing means.

[0084] In addition, as shown in the attached drawing Fig. 5, the damper (140) is prevented from being ejected after being received by a protrusion (127) formed at the bottom of the receiving space (126) as another detailed embodiment.

[0085] In this way, the lower end of the damper (140) can first be inserted into the lower part of the receiving space (126) where the stone ledge (127) is formed, and the upper end of the damper (140) can be pushed up into the upper part of the receiving space (126) to be fixed.

[0086] In addition, as shown in the attached drawing Fig. 6, another detailed embodiment is provided in which one upper end of the damper (140) is fitted and fixed to a mounting pin (128) protruding above the receiving space (126) during the process of being received in the receiving space (126).

[0087] If this happens, ' The curved portion on one side of the upper end of the damper (140) formed in the shape of ' can be inserted into the mounting pin (128) to be fixed within the receiving space (126).

[0088] In addition, as shown in the attached drawing Fig. 7, the damper (140) may have one end fitted and fixed to a fixed projection (129) that is vertically protruding from the rear of the receiving space (126) during the process of being received in the receiving space (126).

[0089] If this happens, ' The gap, i.e., the vertical slit portion formed on one side of the damper (140) formed in the shape of ' can be inserted and fixed into the fixing piece (129).

[0090] At this time, if the gap between the fixed protrusion (129) and the inner wall of one side of the receiving space (126) matches the thickness of the working surface of one side of the damper (140), or if the thickness of the working surface is somewhat thicker, the damper (140) can be fixed by forcibly fitting it into the fixed protrusion (129).

[0091] The fastening operation of the present invention as described above is as shown in the attached drawings, Figs. 8 to 11.

[0092] First, with the tooth point of the second component (120) inserted into the connecting end (111), which is the tip of the tooth adapter fixed to the bucket of the excavator of the first component (110), the connecting unit (130) is inserted through the inlet hole (122) formed on one side of the tooth point of the second component (120), so that it passes through the through path (112) formed in the tooth adapter of the first component (110) and reaches the outlet hole (123) formed on the other side of the tooth point of the second component (120), then, as shown in the attached drawing FIG. 8, with the head (131) portion of the connecting unit (130) positioned in the inlet hole (122), the first plane (133) comes into contact with the damper (140), and the locking member (136) through the fitting groove (124) formed in the inlet hole (122) It is inserted and positioned within the insertion hole (122).

[0093] At this time, the damper (140) has three parallel first, second, and third action surfaces (141, 142, 143) spaced apart as described above, and the first action surface (141) and the second action surface (142) are connected at the bottom, and the second action surface (142) and the third action surface (143) are connected at the top, forming a zigzag shape.

[0094] At this time, when a constant force is applied to the connecting unit (130) to rotate it counterclockwise, as shown in the attached drawing Fig. 9, the curved surface (135) protruding from the first plane (133) rotates from top to bottom, and presses and pushes the upper part of one side of the damper (140), that is, the upper part of the first working surface (141), thereby contracting it.

[0095] In this process, if a certain force is applied to the connecting unit (130) to rotate it further (at a 45-degree angle), as shown in the attached drawing Fig. 10, the curved surface (135) of the connecting unit (130) is positioned in the middle part of the first working surface (141) of the damper (140), and at this time, the lower part of the second working surface (142) of the damper (140) contracts and is pushed toward the third working surface (143).

[0096] Afterwards, when a certain force is applied to the connecting unit (130) to rotate it further (90 degrees), as shown in the attached drawing Fig. 11, when the curved surface (135) of the connecting unit (130) moves downward beyond the bottom of the first working surface (141) of the damper (140), the damper (140) springs back to its original shape, and at this time, the second plane (134) of the connecting unit (130) comes into contact with the damper (140).

[0097] At this time, while the connecting unit (130) rotates as described above, the locking member (136) is inserted through the fitting groove (124) formed in the insertion hole (122), and moves along the arc-shaped guide groove (125) formed on the inner surface of the insertion hole (122) to get caught and become locked.

[0098] The rotation angle of the connection unit (130) as described above is 90 degrees.

[0099] The release separation operation of the present invention as described above is as shown in the attached drawings Figs. 12 to 15.

[0100] First, when the first component (110) and the second component (120) are combined through the connecting unit (130) as described above, as shown in the attached drawing Fig. 12, the second plane (134) is in contact with the damper (140), and the locking member (136) is guided along the guide groove (125) formed in the inlet hole (122) and is in a fixed state.

[0101] At this time, when a certain force is applied to the connecting unit (130) to rotate it clockwise, as shown in the attached drawing Fig. 13, the curved surface (135) protruding from the second plane (133) rotates upward from below, and at this time, the lower part of the second action surface (142) of the damper (140) contracts and is pushed toward the third action surface (143).

[0102] In this process, if a certain force is applied to the connecting unit (130) to rotate it further (at a 45-degree angle), as shown in the attached drawing Fig. 14, the curved surface (135) of the connecting unit (130) is positioned in the middle part of the first working surface (141) of the damper (140), and at this time, the lower part of the second working surface (142) of the damper (140) contracts further and is pushed toward the third working surface (143).

[0103] Afterwards, when a certain force is applied to the connecting unit (130) to rotate it further, the upper part of the first working surface (141) is pressed and pushed, causing it to contract. When a certain force is applied to the connecting unit (130) to rotate it further (90-degree angle), as shown in the attached drawing Fig. 15, the curved surface (135) of the connecting unit (130) moves upward beyond the upper part of the first working surface (141) of the damper (140), so the damper (140) springs back to its original shape. At this time, the first flat surface (134) of the connecting unit (130) comes into contact with the damper (140). At this time, the springing pressure of the damper (140) does not act significantly on the connecting unit (130), so it is possible to easily release and detach (extract and separate) it from the through-connection state.

[0105] The technical features disclosed in each embodiment of the present invention are not limited to that embodiment only, and as long as they are not mutually incompatible, the technical features disclosed in each embodiment may be combined and applied to different embodiments.

[0106] Therefore, in each embodiment, the technical features are described primarily, but as long as the technical features are not mutually incompatible, they may be combined and applied together.

[0107] The present invention is not limited to the embodiments described above and the attached drawings, and various modifications and variations may be possible from the perspective of those skilled in the art to which the present invention belongs. Accordingly, the scope of the present invention should be defined not only by the claims of this specification but also by equivalents thereof. Explanation of the symbols

[0108] 100: Heterogeneous component fastening device 110: First component 111: Connection section 112: Penetration path 120: Second component 121: Insertion groove 122: Inlet port 123: Outlet port 124: Insertion groove 125: Guide groove 126: Accommodation space 127: Stone ledge 128: Mounting pin 129: Fixing projection 130: Connection unit 131: Head 132: Fastening pin 133, 134: 1st, 2nd plane 135: Curved surface 136: Locking member 140: Damper 141, 142, 143: 1st, 2nd, 3rd acting surfaces

Claims

Claim 1 A heterogeneous component fastening device comprising: a first component having a through path formed in a connecting end; a second component having an insertion groove into which the connecting end of the first component is inserted, and an inlet hole and an outlet hole formed on both sides facing the insertion groove so as to be in communication through the through path; a connecting unit that fastens or releases according to a rotational operation position while inserted to reach the inlet hole, the through path, and the outlet hole; and a damper consisting of a single elastic pressure body located on one side of the connecting unit, which contracts or returns to its original state relative to the connecting unit according to the rotational operation of the connecting unit, thereby preventing rotation of the connecting unit and maintaining a fixed state. Claim 2 In claim 1, the first component is a heterogeneous component fastening device that is a tooth adapter connected and fixed to an excavator bucket. Claim 3 In claim 1, the second component is a heterogeneous component fastening device that is a tooth point fitted and coupled to the connecting end of the tooth adapter tip. Claim 4 A heterogeneous component fastening device according to claim 1, wherein the connecting unit has a connecting pin with a small diameter formed on one side of a head with a relatively large diameter, the head is inserted into and positioned in an inlet hole formed on one side of a second component, and the connecting pin penetrates a through path formed in a first component and reaches an outlet hole formed on the other side of the second component. Claim 5 A heterogeneous component fastening device according to claim 1, wherein the connecting unit has a first plane and a second plane formed by cutting on a part of the head surface that contacts the fastening pin, the first plane and the second plane having a curved surface formed at the corners of the first plane and the second plane, and a locking member protruding from the head surface facing the second plane. Claim 6 In claim 5, the first plane is a heterogeneous component fastening device that contacts the damper during the initial insertion and release of the connection unit. Claim 7 In claim 5, the second plane is a heterogeneous component fastening device that contacts the damper when fastened and fixed by rotational operation of the connecting unit. Claim 8 In claim 5, the first plane and the second plane are heterogeneous component fastening devices that come into contact with the damper in a non-pressurized state. Claim 9 In claim 5, the first plane and the second plane are a heterogeneous component fastening device that is pressurized by the elastic pressure of the damper to prevent movement of the connecting unit. Claim 10 A heterogeneous component fastening device according to claim 5, wherein the curved surface moves to overcome the elastic pressure of the damper and shifts position only during forced rotation operation of the connecting unit, thereby allowing the direction change between the first plane and the second plane, and locks to maintain the state until forced rotation operation of the connecting unit occurs. Claim 11 In claim 5, a heterogeneous component fastening device in which the length from the center point of the connecting unit to the curved surface is longer than the length from the center point to the first and second planes. Claim 12 A heterogeneous component fastening device according to claim 5, wherein the locking member is inserted through a fitting groove formed in the insertion hole, and when the connecting unit is rotated, moves along an arc-shaped guide groove formed along the direction of rotation on the inner surface of the insertion hole to perform a locking operation. Claim 13 A heterogeneous component fastening device according to claim 1, wherein the damper has three parallel rows of first, second, and third action surfaces spaced apart, and the first and second action surfaces are connected at their lower ends, and the second and third action surfaces are connected at their upper ends, forming a zigzag shape. Claim 14 In claim 1, the damper is ' A heterogeneous component fastening device made of a metal elastic body of the shape of ' Claim 15 In paragraph 1, the damper is ' A heterogeneous component fastening device made of a metal elastic body of the shape of ' Claim 16 A heterogeneous component fastening device according to claim 13, wherein when the connecting unit is pressed by rotating counterclockwise to fasten the connecting unit, the upper portion of the first working surface is pressed and contracts, when the connecting unit is pressed by rotating at a 45-degree angle, the lower portion of the second working surface contracts, and when the connecting unit is released by rotating at a 90-degree angle, it returns to its original state by elastic force to maintain the fastened fixed state of the connecting unit, and when the connecting unit is pressed by rotating clockwise to release the connecting unit, the lower portion of the second working surface is pressed and contracts, when the connecting unit is pressed by rotating at a 45-degree angle, the lower portion of the second working surface contracts further, and when the connecting unit is released by rotating at a 90-degree angle, it returns to its original state by elastic force to enable the connecting unit to be released. Claim 17 In claim 1, the damper is a heterogeneous component fastening device that is inserted and fixed into a receiving space formed in communication with one side of an inlet hole into which the connecting unit is inserted. Claim 18 In claim 17, the damper is a heterogeneous component fastening device that corresponds to a connecting unit through a communication portion of the receiving space. Claim 19 In claim 17, the damper is a heterogeneous component fastening device fixed within the receiving space by its own elastic force. Claim 20 In claim 17, the damper is a heterogeneous component fastening device in which detachment after receiving is prevented by a protrusion formed at the bottom of the receiving space. Claim 21 In claim 17, the damper is a heterogeneous component fastening device in which one upper end is fitted and fixed to a mounting pin protruding above the receiving space during the process of being received in the receiving space. Claim 22 In claim 1, the damper is a heterogeneous component fastening device in which one end is fitted and fixed to a fixed projection vertically protruding from the rear of the receiving space during the process of being received in the receiving space.

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