Connection fastener

Abstract

The present invention relates to a connecting fastener, and more specifically, to an improved connecting fastener that is applied to a mine car used to transport soil generated during excavation for tunnel construction, so that when connecting mine cars to each other, it automatically connects and allows for easy separation, thereby preventing worker entrapment accidents that occur when connecting mine cars, and is very convenient as it does not require aligning pin holes for connection, thereby increasing the efficiency and safety of using the mine car.

Description

Technology Field

[0001] The present invention relates to a connecting fastener, and more specifically, to an improved connecting fastener that is applied to a mine car used to transport soil generated during excavation for tunnel construction, so that when connecting mine cars to each other, it automatically connects and allows for easy separation, thereby preventing worker entrapment accidents that occur when connecting mine cars, and is very convenient as it does not require aligning pin holes for connection, thereby increasing the efficiency and safety of using the mine car. Background Technology

[0002] Generally, ore loading cars are non-powered carts used primarily for transporting excavated soil during tunnel construction, and they are towed by battery cars with their own power.

[0003] Therefore, typically, one battery car connects and tows multiple mine cars.

[0004] In addition, the mine car is typically configured to be braked by pneumatic pressure supplied from the battery car while connected to it.

[0005] In addition, multiple mine cars are connected for use. When connecting multiple cars in this way, as shown in the photographic example of FIG. 1, two mine cars to be connected are pulled so that the brackets (10) provided at the ends facing each other overlap vertically, and the fixing holes (20) are aligned. Then, in that state, a fixing pin (not shown) is fitted into the fixing holes (20) to connect them to each other.

[0006] This is a structure that is used not only in mine cars, but also when connecting passenger cars of trains (or trains) or in various bogies.

[0007] However, since this type of work is a connection task that must be done manually by a worker in a confined space, it is not only difficult to accurately align the fixing hole (20), but there is also a safety issue that can lead to a pinching accident if done incorrectly.

[0008] In addition, since inserting the fixing pin requires a precise and accurate fit, the work takes a long time and requires high concentration, making the work very difficult and inconvenient. Prior art literature

[0009] Korean Registered Patent No. 10-1523684 (May 21, 2015) Brake System for Rail Mine Car The problem to be solved

[0010] The present invention was created to solve the various problems of the prior art as described above, and its main purpose is to provide an improved connection fastener that is applied to mine cars used to transport soil generated during tunnel construction, so that when connecting mine cars to each other, they can be automatically fastened and easily separated, thereby preventing worker pinching accidents that occur when connecting mine cars, and is very convenient as it eliminates the need to align pin holes for connection, thereby increasing the efficiency and safety of using the mine cars. means of solving the problem

[0011] The present invention provides a connecting fastener installed in each of the first and second joint parts (130, 140) connecting a first part (110) and a second part (120) as a means to achieve the above-mentioned purpose; wherein the connecting fastener comprises a first fastener (210) that is detachably assembled to the first joint part (130) and a second fastener (220) that is detachably assembled to the second joint part (130); and wherein the first and second fasteners (210, 220) are elastically interlocked and fixed to each other.

[0012] At this time, the first fastening member (210) may include a first joint fixing member (211) that is fastened to the first joint part (130), a first lower jaw (212) that is horizontally extended a certain length from the first joint fixing member (211) and then extended downward, a first upper jaw (213) that is extended upward and spread apart from the first lower jaw (212), a first rocker (215) that is inserted and installed in the first upper jaw (213) and allows elastic movement, and a first disassembly handle (218) that forces the first rocker (215) to move.

[0013] Additionally, the second fastening member (220) may include a second joint fixing member (221) that is fastened to the second joint member (140), a second lower jaw (222) that is horizontally extended a certain length from the second joint fixing member (221) and then extended downward, a second upper jaw (223) that is extended upward and spread apart from the second lower jaw (222), a second rocker (225) that is inserted and installed in the second upper jaw (223) and allows elastic movement, and a second disassembly handle (228) that forces the second rocker (225) to move. Effects of the invention

[0014] According to the present invention, when applied to a mine car used to transport soil generated during excavation for tunnel construction, the mine cars can be automatically connected and easily separated when connected to each other, thereby preventing worker entrapment accidents that occur during mine car connection, and also being very convenient as there is no need to align pin holes for connection, thereby obtaining an improved effect that increases the efficiency and safety of the mine car's use. Brief explanation of the drawing

[0015] Figure 1 is an exemplary sample photograph showing a connecting fastener for a mine car according to the prior art. FIG. 2 is an illustrative diagram showing an example of use of a connecting fastener according to the present invention. FIG. 3 is an exemplary diagram showing a connection fastener according to the present invention. FIG. 4 is an explanatory diagram schematically showing the internal structure to explain the fastening structure of the connecting fastener according to the present invention. Figure 5 is a photograph of an actual production sample of a connecting fastener according to the present invention. Specific details for implementing the invention

[0016] Hereinafter, preferred embodiments according to the present invention will be described in more detail with reference to the attached drawings.

[0017] Prior to describing the present invention, the following specific structural or functional descriptions are provided merely for the purpose of illustrating embodiments according to the concept of the present invention. Embodiments according to the concept of the present invention may be implemented in various forms and should not be interpreted as being limited to the embodiments described herein.

[0018] As shown in FIGS. 2 to 5, the connecting fastener according to the present invention is installed in the first and second joint parts (130, 140) connecting the first (110) and the second (120), respectively.

[0019] That is, the above connecting fastener includes a first fastener (210) that is detachably assembled to the first joint part (130) and a second fastener (220) that is detachably assembled to the second joint part (130).

[0020] At this time, the first and second joint parts (130, 140) are respectively provided at both ends of the mine car and are used when connecting other mine cars.

[0021] Here, the reason the first and second fastening members (210, 220) are configured to be detachably connected to the first and second joint parts (130, 140) is to facilitate maintenance.

[0022] In addition, the first and second fasteners (210, 220) have the same structure and shape, and differ only in that they are assembled so that they are positioned 180° inverted from each other when installed.

[0023] In other words, they are assembled in a state where they are inverted 180° relative to each other so that they can be arranged in a shape where they interlock.

[0024] More specifically, the first fastening member (210) comprises, as shown in the examples of FIGS. 3 to 5, a first joint fixing member (211) that is fastened to a first joint member (130), a first lower jaw (212) that is horizontally extended a certain length from the first joint fixing member (211) and then extended downward, a first upper jaw (213) that is extended upward and spread apart from the first lower jaw (212), a first rocker (215) that is inserted and installed in the first upper jaw (213) and allows elastic movement, and a first dismantling handle (218) that forces the first rocker (215) to move.

[0025] Accordingly, a space for interlocking called a first fastening groove (214) is created between the first lower jaw (212) and the first upper jaw (213).

[0026] And, as shown in the example of FIG. 4, the first locker (215) is installed so as to be able to move in and out in a downward direction inside the first upper jaw (213). To this end, the lower part of the first upper jaw (213) is open and has a structure in which a space is formed inside.

[0027] In addition, a first fixing rod (216) is integrally connected to the upper end of the first locker (215), and the first fixing rod (216) penetrates the upper surface of the first upper jaw (213) and is exposed upward, and a first dismantling handle (218) is bolted perpendicularly to the exposed end.

[0028] Additionally, a first spring (217) is fitted onto the first fixed rod (216), the lower end of the first spring (217) is caught on the upper end of the first rocker (215), and the upper end of the first spring (217) is caught on the inner ceiling surface of the first upper jaw (213).

[0029] Accordingly, the first locker (215) is structured to be elastically movable by the first spring (217), and when the first dismantling handle (218) is lifted, the first fixing rod (216) is lifted along with it, and the first locker (215) is inserted into the first upper jaw (213) while compressing the first spring (217), and the first locker (215) that was blocking the first fastening groove (214) is removed, thereby enabling the unlocking operation.

[0030] Meanwhile, the second fastening member (220) includes, as shown in the examples of FIGS. 3 to 5, a second joint fixing member (221) that is fastened to the second joint member (140), a second lower jaw (222) that is horizontally extended a certain length from the second joint fixing member (221) and then extended downward, a second upper jaw (223) that is extended upward and spread apart from the second lower jaw (222), a second locker (225) that is inserted and installed in the second upper jaw (223) and moves elastically, and a second dismantling handle (228) that forces the second locker (225) to move.

[0031] Accordingly, a space for interlocking called a second fastening groove (224) is created between the second lower jaw (222) and the second upper jaw (223).

[0032] And, as shown in the example of FIG. 4, the second locker (225) is installed so as to be able to move downward within the second upper jaw (223). To this end, the lower part of the second upper jaw (223) is open and has a structure in which a space is formed inside.

[0033] In addition, a second fixing rod (226) is integrally connected to the upper end of the second locker (225), and the second fixing rod (226) penetrates the upper surface of the second upper jaw (223) and is exposed upward, and a second dismantling handle (228) is bolted perpendicularly to the exposed end.

[0034] Additionally, a second spring (227) is fitted onto the second fixed rod (226), the lower end of the second spring (227) is caught on the upper end of the second rocker (225), and the upper end of the second spring (227) is caught on the inner ceiling surface of the second upper jaw (223).

[0035] Accordingly, the second locker (225) is structured to be elastically movable by the second spring (227), and when the second dismantling handle (228) is lifted, the second fixing rod (226) is lifted along with it, and the second locker (225) is inserted into the second upper jaw (223) while compressing the second spring (227), and the second locker (225) that was blocking the second fastening groove (224) is removed, thereby enabling unlocking.

[0036] In addition, since the first and second fasteners (210, 220) are always exposed to the outside, they must have strong resistance to erosion, corrosion, water, and dirt. Only then can they achieve excellent durability and a long lifespan, and maintain strong fastening force without local breakage or damage during jointing.

[0037] To this end, the outer surface of the first and second fasteners (210, 220) is coated with a corrosion-resistant coating liquid.

[0038] At this time, the corrosion-resistant coating liquid is prepared by mixing 10 parts by weight of 1,4-butylene glycol dibenzoate, 10 parts by weight of glycerol mono stearate, 15 parts by weight of abietic acid, 10 parts by weight of sulfobetaine chitosan, and 5 parts by weight of benzoic acid vinyl ester with respect to 100 parts by weight of alkyd resin.

[0039] Here, alkyd resin is a base resin used in parts requiring adhesion to the substrate and high film corrosion resistance.

[0040] Also, 1,4-butylene glycol dibenzoate is a substance corresponding to CAS number 19224-27-2, intended to enhance adhesion and maximize adhesion.

[0041] In addition, glycerol mono stearate is a substance corresponding to CAS No. 123-94-4, which improves water pressure resistance, water resistance, and moisture resistance, while also providing antistatic properties based on surfactant function.

[0042] In addition, the above-mentioned abietic acid reacts with water to induce insoluble calcium saponification, thereby forming a strong film, which strengthens watertightness and increases erosion and corrosion resistance.

[0043] In addition, sulfobetaine chitosan is a water-soluble material produced by reacting chitosan with 1,3-propanesultone, which enhances durability, erosion resistance, and corrosion resistance through improved polymer affinity and mechanical properties.

[0044] In particular, benzoic acid vinyl ester is a substance corresponding to CAS number 769-78-8 that absorbs ultraviolet rays through photodegradation action against ultraviolet rays, thereby protecting the surface of the substrate, suppressing cracking, and strengthening adhesion.

[0045] In the present invention configured as described above, when two mine cars are brought close together to be connected, the first and second fastening members (210, 220) meet each other and the first and second rockers (215, 225) come into contact. Simultaneously, as the first and second springs (217, 227) are compressed, the first and second rockers (215, 225) are pushed backward and move over each other. Subsequently, the first and second rockers (215, 225) pop out again, and the first and second rockers (215, 225) automatically interlock with each other within the first and second fastening grooves (214, 224).

[0046] Then, the first and second lockers (215, 225) are not easily separated unless they are forcibly pushed up.

[0047] In such a state, when it is necessary to separate the mine car, the first and second disassembly handles (218, 228) are grasped and rotated to forcibly retract the first and second lockers (215, 225), thereby allowing the mutually locked state to be easily and quickly released. Explanation of the symbols

[0048] 110: 1st 120: 2nd 130: 1st joint section 140: 2nd joint section 210: First fastening part 220: Second fastening part

Claims

Claim 1 In a connecting fastener installed in each of the first and second joint sections (130, 140) connecting the first section (110) and the second section (120); the connecting fastener comprises a first fastener (210) that is detachably assembled to the first joint section (130) and a second fastener (220) that is detachably assembled to the second joint section (130); The first and second fastening members (210, 220) are fixed by being elastically interlocked with each other; the first fastening member (210) includes a first joint fixing member (211) that is fastened to a first joint part (130), a first lower jaw (212) that is horizontally extended a certain length from the first joint fixing member (211) and then extended downward, a first upper jaw (213) that is extended upward and spread apart from the first lower jaw (212), a first rocker (215) that is inserted and installed in the first upper jaw (213) and allows elastic movement, and a first disassembly handle (218) that forces the first rocker (215) to move; the second fastening member (220) includes a second joint fixing member (221) that is fastened to a second joint part (140), and the It includes a second lower jaw (222) that is horizontally extended a certain length from the second joint fixing part (221) and then extended downward, a second upper jaw (223) that is extended upward and spread apart from the second lower jaw (222), a second rocker (225) that is inserted and installed in the second upper jaw (223) and allows elastic movement, and a second disassembly handle (228) that forces the second rocker (225) to move; the outer surface of the first and second fastening parts (210, 220) is coated with a corrosion-resistant coating liquid, wherein the corrosion-resistant coating liquid comprises 10 parts by weight of 1,4-butylene glycol dibenzoate and glycerol mono stearate per 100 parts by weight of alkyd resin A connecting fastener characterized by being made by mixing 10 parts by weight of abietic acid, 15 parts by weight of abietic acid, 10 parts by weight of sulfobetaine chitosan, and 5 parts by weight of benzoic acid vinyl ester. Claim 2 delete Claim 3 delete

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