A split type latch and a manufacturing method thereof

Abstract

The invention discloses a split type bolt and a manufacturing method thereof, comprising a lock tongue, a shell, a pull ring and a return spring, wherein an axis body is penetrated on the shell, and the pull ring is hinged with the axis body, the shell comprises a bottom plate, a cover body and a baffle, the lock tongue is provided with a boss, the return spring is sleeved on the lock tongue, and one end of the return spring abuts on the boss, and the other end abuts on the baffle, the bottom plate, the cover body and the baffle are separately arranged, the cover body has a built-in mounting groove, the notch of the mounting groove is arranged on the lower surface of the cover body, the bottom plate cover is arranged on the notch of the mounting groove, the lower surface of the cover body is provided with a pin a, the bottom plate is provided with a slot a matched with the pin a, the pin a is inserted in the slot a, so as to realize the connection between the cover body and the bottom plate, the baffle is provided with a pin b, the bottom plate is provided with a slot b matched with the pin b, the pin b is inserted in the slot b, so as to realize the connection between the baffle and the bottom plate, the processing technology can be reduced through split processing, and grinding and polishing are not required, the product is more beautiful, and it is also more convenient to assemble.

Description

Technical Field

[0001] The present invention relates to the technical field of bolts, and in particular to a split bolt and a manufacturing method thereof. Background Art

[0002] In the prior art, the bolt includes a lock tongue, a shell, a pull ring for driving the lock tongue to slide, and a reset spring for resetting the lock tongue. The lock tongue is slidably arranged in the shell, the shaft body is penetrated on the shell, the pull ring passes through the lock tongue and the shell in turn, one end of the pull ring is hingedly arranged on the shaft body, and the other end extends out of the shell. The shell is also provided with a long slot a for the pull ring to swing. The shell includes a bottom plate, a cover body and a baffle. The lock tongue is provided with a boss, and the reset spring is sleeved on the lock tongue, and one end of the reset spring abuts on the boss, and the other end abuts on the baffle. The bottom plate, the cover body and the baffle are integrally die-casted, and at least the following defects exist: 1. After molding, the shell needs to be polished and polished, which will increase environmental pollution; 2. The molding process is relatively difficult, resulting in relatively high processing costs; 3. The lower end of the shell after molding is open, which is easy to accumulate dust and other dirt, and is also not beautiful; 4. If there are defects during die-casting, the entire shell will become waste, wasting a lot of financial and material resources. Summary of the invention

[0003] Purpose of the invention: In order to overcome the defects of the prior art, the present invention provides a split type latch, which can reduce the processing technology through split processing, and does not require grinding and polishing, and the product is more beautiful and convenient to assemble.

[0004] The present invention discloses a split type bolt, comprising a lock tongue, a housing, a pull ring for driving the lock tongue to slide, and a reset spring for resetting the lock tongue, wherein the lock tongue is slidably arranged in the housing, a shaft body is passed through the housing, the pull ring passes through the lock tongue and the housing in sequence, one end of the pull ring is hingedly arranged on the shaft body, and the other end extends out of the housing, and a long slot a for the pull ring to swing is also provided on the housing, the housing comprises a bottom plate, a cover body and a baffle, the lock tongue is provided with a boss, the reset spring is sleeved on the lock tongue, and one end of the reset spring abuts against the boss The cover body is provided with a mounting groove, the notch of the mounting groove is arranged on the lower surface of the cover body, the bottom plate cover is arranged on the notch of the mounting groove, the lower surface of the cover body is provided with a pin a, the bottom plate is provided with a slot a matched with the pin a, the pin a is inserted in the slot a, so as to realize the connection between the cover body and the bottom plate, the baffle is provided with a pin b, the bottom plate is provided with a slot b matched with the pin b, the pin b is inserted in the slot b, so as to realize the connection between the baffle and the bottom plate.

[0005] By adopting the above technical solution, split processing can be used during processing, which can reduce the difficulty of the processing technology and thus reduce the processing cost. Moreover, there is no need for polishing and grinding after stamping, thereby reducing pollution to the environment. The bottom plate cover is arranged on the notch of the installation groove, so that the lower end of the product is sealed after assembly, which can prevent dust and other dirt from entering the cover body from the notch of the installation groove. It can also make the product more beautiful when sold and can meet the needs of more customers. Moreover, when defects occur during processing, only the component needs to be replaced, rather than the entire shell, which can further reduce the processing cost. During assembly, only the corresponding pins need to be inserted into the corresponding slots, and the assembly is also relatively convenient.

[0006] The present invention is further configured as follows: the slot a is arranged to penetrate the bottom plate, the pin a extends from the slot a to the outside, and the portion of the pin a extending to the outside is riveted or bent to fix the bottom plate and the cover body.

[0007] By adopting the above further configuration, the cover body and the bottom plate can be further prevented from separating, making the cover body more stable during use, having a simple structure, and being more convenient to operate.

[0008] The present invention is further configured as follows: the slot b is arranged to penetrate the bottom plate, the plug pin b extends from the slot b to the outside, and the portion of the plug pin b extending to the outside is riveted or bent to fix the baffle and the bottom plate.

[0009] By adopting the above further configuration, the baffle and the bottom plate can be further prevented from separating, making the device more stable during use, simple in structure, and more convenient to operate.

[0010] The present invention is further provided with supporting feet surrounded by extension blocks on the lower surface of the base plate.

[0011] By further configuring the above, the product can be made more stable during use.

[0012] The present invention also provides a method for manufacturing an aircraft latch housing, which is characterized by comprising at least the following molding processes:

[0013] Bottom plate forming process: the bottom plate is formed by punching the original plate, and the slot a and slot b are punched on the bottom plate, and then the lower surface of the bottom plate is formed into supporting feet by punching;

[0014] The cover body forming process is as follows: the cover body is formed by punching the original plate into a cover body and forming a mounting groove, and then the cover body is punched to form a lock hole, a long slot hole a and a shaft body mounting hole a, and then the notch of the mounting groove is trimmed to form a pin a;

[0015] The baffle forming process is to bend the original sheet material into a baffle by stamping the original sheet material, and the baffle is U-shaped after being formed. The lower surface of the baffle is trimmed to form a pin b, and the baffle is punched to form a through hole and a shaft mounting hole b.

[0016] Assembly molding process: the connection between the baffle and the bottom plate is achieved by inserting the pin b into the slot b, and the connection between the cover body and the bottom plate is achieved by inserting the pin a into the slot a, thereby forming the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the latch of the present invention;

[0018] Figure 2 This is a schematic diagram of the latch structure of the present invention;

[0019] Figure 3 This is a diagram showing the internal structure of the cover body of the present invention;

[0020] Figure 4 This is a schematic diagram of the lock tongue structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the cover structure of the present invention;

[0022] Figure 6 This is a schematic diagram of the bottom plate structure of the present invention;

[0023] Figure 7 It is a schematic diagram of the pull ring structure of the present invention;

[0024] Figure 8 It is a schematic diagram of the baffle structure of the present invention. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0026] The present invention discloses a split type bolt, comprising a lock tongue 1, a housing 2, a pull ring 3 for driving the lock tongue 1 to slide, and a reset spring 4 for resetting the lock tongue 1. The lock tongue 1 is slidably arranged in the housing 2. The housing 2 is provided with an axle body mounting hole a5, and an axle body 6 is penetrated through the axle body mounting hole a5. The pull ring 3 passes through the lock tongue 1 and the housing 2 in sequence. One end of the pull ring 3 is hingedly arranged on the axle body 6, and the other end extends out of the housing 2. The housing 2 is also provided with a long slot hole a7 for the pull ring 3 to swing. The lock tongue 1 is provided with a long slot hole b111 for the pull ring 3 to penetrate. The long slot hole on the lock tongue 1 can make the pull ring 3 It is more convenient during assembly. The housing 2 includes a bottom plate 211, a cover body 212 and a baffle 213. The lock tongue 1 is provided with a boss 112. The return spring 4 is sleeved on the lock tongue 1, and one end of the return spring 4 abuts against the boss 112, and the other end abuts against the baffle 213. In the embodiment of the present invention, the bottom plate 211, the cover body 212 and the baffle 213 are separately arranged. The cover body 212 has a built-in mounting groove 2121. The notch of the mounting groove 2121 is opened on the lower surface of the cover body 212. The bottom plate 211 is covered on the notch of the mounting groove 2121. The lower surface of the cover body 212 is provided with a pin a212 2. The bottom plate 211 is provided with a slot a2111 matched with the pin a2122, and the pin a2122 is inserted into the slot a2111 to achieve the connection between the cover body 212 and the bottom plate 211. The baffle 213 is provided with a pin b2131, and the bottom plate 211 is provided with a slot b2112 matched with the pin b2131, and the pin b2131 is inserted into the slot b2112 to achieve the connection between the baffle 213 and the bottom plate 211. During processing, the processing can be carried out by split processing, so that the difficulty of the processing technology can be reduced, thereby reducing the processing cost, and no polishing is required after stamping. Polishing and grinding can reduce pollution to the environment. The bottom plate 211 is covered on the notch of the installation groove 2121, so that the lower end of the product is sealed after assembly, which can prevent dust and other dirt from entering the cover body 212 from the notch of the installation groove 2121. It can also make the product more beautiful when sold, meet the needs of more customers, and when defects occur during processing, only the component needs to be replaced, rather than the entire shell 2, which can further reduce the processing cost. When assembling, you only need to insert the corresponding pins into the corresponding slots, and the assembly is also more convenient.

[0027] The slot a2111 is set through the bottom plate 211, and the pin a2122 extends from the slot a2111 to the outside. The part of the pin a2122 extending to the outside is riveted or bent to fix the bottom plate 211 and the cover body 212, which can further prevent the cover body 212 and the bottom plate 211 from separating, making it more stable when in use, with a simple structure and convenient operation.

[0028] The slot b2112 is set through the bottom plate 211, and the pin b2131 extends from the slot b2112 to the outside. The part of the pin b2131 extending to the outside is riveted or bent to fix the baffle 213 and the bottom plate 211, which can further prevent the baffle 213 and the bottom plate 211 from separating, making it more stable when in use, with a simple structure and convenient operation.

[0029] The bottom surface of the bottom plate 211 is provided with supporting feet 2113 surrounded by extension blocks, which can make the product more stable when in use.

[0030] The present invention also provides a method for manufacturing an aircraft latch housing, which in an implementation example of the present invention at least includes the following molding processes:

[0031] The bottom plate forming process is to form the bottom plate 211 by stamping the original plate, and punch holes on the bottom plate 211 to form slots a2111 and slots b2112, and then form support feet 2113 on the lower surface of the bottom plate 211 by stamping. Two fixing holes 9 can also be opened on the bottom plate 211 for fixing with bolts or pins;

[0032] The cover body forming process is as follows: the cover body 212 is formed by punching the original plate, and the mounting groove 2121 is formed, and then the cover body 212 is punched to form the lock hole 8, the long slot hole a7 and the shaft body mounting hole a5, and then the notch of the mounting groove 2121 is trimmed to form the pin a2122;

[0033] The baffle forming process is to stamp the original sheet material to bend the original sheet material into a baffle 213, and the baffle 213 is U-shaped after being formed. The lower surface of the baffle 213 is trimmed to form a pin b2131, and the baffle 213 is punched to form a through hole 2132 and a shaft mounting hole b2133. The through hole 2132 can be used to penetrate the lock tongue 1.

[0034] Assembly molding process: the connection between the baffle 213 and the base plate 211 is achieved by inserting the pin b2131 into the slot b2112, and the connection between the cover body 212 and the base plate 211 is achieved by inserting the pin a2122 into the slot a2111, thereby forming the shell 2, forming the rear axle mounting hole a5 and the axle mounting hole b2133 coaxially arranged, which can facilitate the insertion of the axle 6.

Claims

1. A split bolt, comprising a lock tongue, a housing, a pull ring for driving the lock tongue to slide, and a reset spring for resetting the lock tongue, wherein the lock tongue is slidably arranged in the housing, a shaft body is penetrated through the housing, the pull ring passes through the lock tongue and the housing in sequence, one end of the pull ring is hingedly arranged on the shaft body, and the other end extends out of the housing, and a long slot a for the pull ring to swing is also provided on the housing, the housing comprises a bottom plate, a cover body and a baffle, the lock tongue is provided with a boss, the reset spring is sleeved on the lock tongue, and one end of the reset spring abuts against the boss, and the other end abuts against the baffle, characterized in that: The bottom plate, the cover body and the baffle are separately arranged, the cover body has a built-in mounting groove, the notch of the mounting groove is opened on the lower surface of the cover body, the bottom plate cover is arranged on the notch of the mounting groove, the lower surface of the cover body is provided with a pin a, the bottom plate is provided with a slot a matched with the pin a, the pin a is inserted in the slot a to realize the connection between the cover body and the bottom plate, the baffle is provided with a pin b, the bottom plate is provided with a slot b matched with the pin b, the pin b is inserted in the slot b to realize the connection between the baffle and the bottom plate.

2. A split type latch according to claim 1, characterized in that: The slot a is arranged through the bottom plate, and the pin a extends from the slot a to the outside. The portion of the pin a extending to the outside is fixed to the bottom plate and the cover body by riveting or bending.

3. A split type latch according to claim 2, characterized in that: The slot b is arranged through the bottom plate, and the plug pin b extends from the slot b to the outside. The portion of the plug pin b extending to the outside is fixed to the baffle and the bottom plate by riveting or bending.

4. A split type latch according to claim 3, characterized in that: The lower surface of the bottom plate is provided with supporting feet surrounded by extension blocks.

5. A method for manufacturing a housing of a split type latch according to claim 1, 2, 3 or 4, characterized in that: At least the following molding processes are included: Bottom plate forming process: the bottom plate is formed by punching the original plate, and the slot a and slot b are punched on the bottom plate, and then the lower surface of the bottom plate is formed into supporting feet by punching; The cover body forming process is as follows: the cover body is formed by punching the original plate into a cover body and forming a mounting groove, and then the cover body is punched to form a lock hole, a long slot hole a and a shaft body mounting hole a, and then the notch of the mounting groove is trimmed to form a pin a; The baffle forming process is to bend the original sheet material into a baffle by punching the original sheet material, and the baffle is U-shaped after being formed, and the lower surface of the baffle is trimmed to form a pin b, and the baffle is punched to form a through hole and a shaft mounting hole b; Assembly molding process: the connection between the baffle and the bottom plate is achieved by inserting the pin b into the slot b, and the connection between the cover body and the bottom plate is achieved by inserting the pin a into the slot a, thereby forming the shell.

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