Combined type elastic nail integrated nail

Abstract

The utility model belongs to the technical field of shoot nail fastening, and particularly discloses a combined type elastic nail integrated nail which is safe to use. The cover body comprises a sleeve, a sealing plate is arranged at one axial end of the sleeve, and a barrel-shaped structure with one open end and the other closed end is formed; the sleeve is coaxially arranged outside the charging barrel in a sleeving mode, and the opening end of the charging barrel abuts against the sealing plate. The sealing plate is located at the firing end, and the firing part is arranged on the sealing plate; a gap is formed between the end face of the end, away from the opening of the charging barrel, of the charging barrel and the end, away from the sealing plate, of the sleeve, a mounting groove is defined, and the connector is clamped and mounted in the mounting groove. And the corrosion effect of the propellant powder on the connector of the shooting nail can be effectively avoided. When the projectile body loses efficacy, the projectile body is replaced; and when the shooting nail fails, the shooting nail is replaced. And materials are saved, and the whole elastic nail integrated nail is prevented from being scrapped.

Description

Technical Field

[0001] The utility model belongs to the technical field of nail-shooting fastening, and in particular relates to a combined spring-nail integrated nail. Background Art

[0002] Gunpowder nail fastening equipment includes three series of products: nail bullets, nail guns and nails. The basic principle is to use a nail gun to hit the bottom of the nail bullet to ignite the propellant inside the nail bullet, thereby generating a strong driving force to drive the nail into the matrix, thereby achieving the purpose of fixing the nail. Because of its advantages such as easy use and good fastening effect, it is widely used in construction, decoration, smelting and chemical industry, underwater operations and other fields.

[0003] The bullet-nail integrated nail specifically refers to a nail and bullet as an integral structure. At present, the shell and nail body of the bullet-nail integrated nail are integrally formed by injection molding. However, this type of product has the following problems during production and use:

[0004] First, it is easy to explode during use and the power is unstable;

[0005] Second, for R&D and manufacturing, different types of nails require different injection molds, which increases production costs and complicates the process.

[0006] In order to reduce the investment in molds, the traditional integrated nails are structurally improved. Figure 1 , 2 As shown, the integrated nail comprises a coaxially arranged cartridge case 1 and a nail 2; the cartridge case 1 is provided with an inner cavity which is coaxially arranged with itself and has an opening at one end, the end of the cartridge case 1 opposite to the opening is a firing end 104, and a firing portion 101 is provided in the middle of the end surface of the firing end 104; the nail 2 comprises a nail body 201, one end of the nail body 201 is provided with a connector 202, and the other end is provided with a tip portion 203; the inner cavity comprises a charging section 102 and a connecting section 103 arranged along the axial direction L1 of the cartridge case 1, and the connecting section 103 is arranged adjacent to the opening of the inner cavity; the connecting head 202 extends into the connecting section 103 and cooperates with each other, so that the connecting head 202 is connected to the cartridge case 1 and blocks the opening of the inner cavity; the end surface of the connecting head 202 away from the nail body 201 and the charging section 102 form a charge chamber, and the charge chamber is filled with propellant 3. By standardizing the connector 202 and the connecting section 103, different types of nails and cartridges can be used interchangeably, which is beneficial to saving R&D and mold opening costs. However, since the propellant is in direct contact with the connector of the nail, which is made of metal, the propellant has a certain corrosive effect on the connector of the nail, which may affect the normal use of the nail over time.

[0007] In order to solve the problem of propellant corrosive effect on the connection head of the nail, a method such as Figure 3The combined bullet-nail integrated nail shown comprises a cartridge case 1 and a nail 2 arranged coaxially; one axial end of the cartridge case 1 is a firing end 104, and the other end is a connecting end 105; the cartridge case 1 comprises a charge barrel 107 with an opening at one end, the open end of the charge barrel 107 is sealed with a cover body 106 and encloses a charge chamber, and the charge chamber is filled with propellant 3; a firing part 101 is provided on the cover body 106, and the firing part 101 is located in the middle of the end surface of the firing end 104; the nail 2 comprises a nail body 201 arranged coaxially with the cartridge case 1, a connecting head 202 is provided at one end of the nail body 201, and a tip part 203 is provided at the other end; the connecting head 202 is connected to the charge barrel 107 by a connecting structure, and is arranged adjacent to the connecting end 105. When in use, the integrated nail is placed in the launching tube of the nail gun, and the nail gun fires the firing pin. The firing pin penetrates the firing part 101 and then is inserted into the propellant 3. The entry of the firing pin produces extrusion and high friction on the propellant 3. The sensitivity of the temperature increase caused by the friction is utilized to cause the propellant 3 to explode in the confined space. The generated gas is ejected in the direction from the firing part 101 to the tip 203, so that the cover 106 is separated from the charge barrel 107. The charge barrel 107 rushes out of the launching tube together with the nail 2 in the direction from the firing part 101 to the tip 203. When the nail 2 is driven into the target object, it is subjected to the rebound resistance along the direction from the tip 203 to the firing part 101, so that the charge barrel 107 breaks along the plane where its own axis is located, thereby separating the charge barrel 107 from the nail 2.

[0008] The above technical solution can avoid direct contact between the propellant and the nail, and avoid the corrosive effect of the propellant on the connecting head of the nail. However, in actual use, the material of the target object is soft or hard. When the material of the target object is soft, the rebound resistance of the nail 2 is small, so that the charge barrel 107 cannot be completely broken along the plane where its own axis is located, and the charge barrel 107 is not separated from the nail 2. The charge barrel 107 is a plastic product. When the charge barrel 107 rushes out of the launch tube together with the nail 2 in the direction from the firing part 101 to the tip 203, the detonation generated by the propellant 3 is easy to ignite the charge barrel 107 that is not separated from the nail 2, which poses a great safety hazard. Utility Model Content

[0009] The technical problem to be solved by the utility model is to provide a combined spring-nail integrated nail that is safe to use.

[0010] The technical solution adopted by the utility model to solve the technical problem is as follows: a combined type bullet nail integrated nail comprises a cartridge case and a nail arranged coaxially; one axial end of the cartridge case is a firing end, and the other end is a connecting end; the cartridge case comprises a medicine barrel with an opening at one end, the opening end of the medicine barrel is sealed with a cover body, and forms a medicine chamber, and the medicine chamber is filled with propellant; a firing part located in the middle of the end face of the firing end is arranged on the cover body; the nail comprises a nail body arranged coaxially with the cartridge case, one end of the nail body is provided with a connecting head, and the other end is provided with a tip; the cover body comprises a sleeve, one axial end of the sleeve is provided with a sealing plate, and forms a barrel-shaped structure with one end open and the other end closed;

[0011] The sleeve is coaxially sleeved outside the medicine barrel, and the open end of the medicine barrel abuts against the sealing plate; the sealing plate is located at the firing end, and the firing part is arranged on the sealing plate;

[0012] There is a distance between the end surface of the medicine barrel away from its own opening and the end of the sleeve away from the sealing plate, and they form a mounting groove, and the connecting head is snap-fitted and installed in the mounting groove.

[0013] Furthermore, the outer periphery of the medicine barrel is provided with an annular convex edge coaxially arranged with the medicine barrel, and the annular convex edge is located at one end of the medicine barrel adjacent to the connector;

[0014] The inner cavity of the sleeve includes a packaging section and a clamping section arranged in sequence along the direction from the firing end to the connecting end, the packaging section and the clamping section are coaxially arranged, and the inner diameter of the packaging section is smaller than the inner diameter of the clamping section, and the connection between the packaging section and the clamping section forms a step structure and has an annular limiting surface, and the annular convex edge abuts against the annular limiting surface;

[0015] The connecting head is clamped and installed in the clamping section.

[0016] Furthermore, the sleeve is provided with a notch facing the tip portion, and the notch is located in the clamping section.

[0017] Furthermore, an inclined surface located at the clamping section is provided on the outer wall of the sleeve; and the distance between the inclined surface and the sleeve axis L2 gradually decreases along the direction from the firing end to the connecting end.

[0018] Furthermore, an annular groove coaxial with and adjacent to the sleeve is provided on the inner surface of the sealing plate, and the open end of the medicine barrel is clamped in the annular groove.

[0019] Furthermore, the medicine loading barrel and the annular flange are an integral structure formed in one piece.

[0020] Furthermore, the cover body is an integral structure formed in one piece.

[0021] Furthermore, the firing portion is a blind hole structure recessed toward the tip portion.

[0022] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a combined type spring-nail integrated nail that is safe to use. It can also effectively avoid the corrosive effect of the propellant on the connecting head of the nail. When the projectile fails, the projectile is replaced; when the nail fails, the nail is replaced. It is also beneficial to save materials and avoid the overall scrapping of the spring-nail integrated nail. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a bullet-nail integrated nail in the background art;

[0024] Figure 2 It is a schematic diagram of the explosion structure of a nail-in-one nail in the background art (the propellant is not shown);

[0025] Figure 3 It is a structural schematic diagram of a combined spring-type integrated nail in the background art;

[0026] Figure 4 It is a structural schematic diagram of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the cover body in the utility model;

[0028] Figure numerals: 1-cartridge case; 101-firing part; 102-charging section; 103-connecting section; 104-firing end; 105-connecting end; 106-cover body; 1061-sleeve; 1062-sealing plate; 1063-packaging section; 1064-clamping section; 1065-annular limiting surface; 1066-notch; 1067-inclined surface; 1068-annular groove; 107-charging barrel; 1071-annular convex edge; 2-nail; 201-nail body; 202-connecting head; 203-tip; 3-propellant. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0030] The combined bullet-nail integrated nail comprises a cartridge case 1 and a nail 2 arranged coaxially; one axial end of the cartridge case 1 is a firing end 104, and the other end is a connecting end 105; the cartridge case 1 comprises a charge barrel 107 with an opening at one end, and the opening end of the charge barrel 107 is sealed with a cover body 106 to form a charge chamber, and the charge chamber is filled with propellant 3; the cover body 106 is provided with a firing portion 101 located in the middle of the end surface of the firing end 104; the nail 2 comprises a nail body 201 arranged coaxially with the cartridge case 1, one end of the nail body 201 is provided with a connecting head 202, and the other end is provided with a tip 203; the cover body 106 It includes a sleeve 1061, and a sealing plate 1062 is provided at one axial end of the sleeve 1061 to form a barrel-shaped structure with one end open and the other end closed; the sleeve 1061 is coaxially sleeved on the outside of the medicine barrel 107, and the open end of the medicine barrel 107 abuts against the sealing plate 1062; the sealing plate 1062 is located at the firing end 104, and the firing part 101 is arranged on the sealing plate 1062; there is a distance between the end surface of the medicine barrel 107 away from its own opening and the end of the sleeve 1061 away from the sealing plate 1062, and a mounting groove is formed, and the connecting head 202 is snap-fitted and installed in the mounting groove.

[0031] Specifically, the cartridge case 1 is a cylindrical structure, and the charge barrel 107 is coaxially arranged with the nail body 201. The cover body 106 serves to block the opening of the charge barrel 107, and the propellant 3 is loaded in the charge chamber surrounded by the charge barrel 107 and the cover body 106 to prevent the propellant 3 from getting wet. When in use, the bullet nail is placed in the firing tube of the nail gun, and the firing needle is fired by the nail gun. The firing needle penetrates the firing part 101 and then inserts into the propellant 3. The entry of the firing needle produces squeezing and high friction on the propellant 3. The sensitivity of the frictional temperature rise is used to make the propellant 3 explode in the confined space, and the generated gas is ejected in the direction from the firing part 101 to the tip 203, so that the cover body 106 and the charge barrel 107 are separated from the connector 202, and the nail 2 is shot into the target object, completing a nail fastening operation.

[0032] As a preferred embodiment, the outer periphery of the medicine charging barrel 107 is provided with an annular convex edge 1071 arranged coaxially with itself, and the annular convex edge 1071 is located at the end of the medicine charging barrel 107 adjacent to the connecting head 202; the inner cavity of the sleeve 1061 includes a packaging section 1063 and a clamping section 1064 arranged in sequence along the direction from the firing end 104 to the connecting end 105, the packaging section 1063 is coaxially arranged with the clamping section 1064, and the inner diameter of the packaging section 1063 is smaller than the inner diameter of the clamping section 1064, and the connection between the packaging section 1063 and the clamping section 1064 forms a step structure and has an annular limiting surface 1065, and the annular convex edge 1071 abuts against the annular limiting surface 1065; the connecting head 202 is clamped and installed in the clamping section 1064. The cooperation between the annular limiting surface 1065 and the annular convex edge 1071 is conducive to the rapid assembly of the charge barrel 107 and is also conducive to the packaging effect of the propellant 3.

[0033] As a preferred embodiment, a notch 1066 is formed on the sleeve 1061 and faces the tip portion 203, and the notch 1066 is located at the clamping section 1064. This prevents the sleeve 1061 from being broken due to excessive interference during interference assembly.

[0034] As a preferred embodiment, an inclined surface 1067 located at the clamping section 1064 is provided on the outer wall of the sleeve 1061; the distance between the inclined surface 1067 and the axis L2 of the sleeve 1061 gradually decreases along the direction from the firing end 104 to the connecting end 105, so as to avoid excessive expansion of the clamping section 1064 due to excessive interference during interference assembly.

[0035] As a preferred embodiment, an annular groove 1068 is provided on the inner surface of the sealing plate 1062, which is coaxial with and adjacent to the sleeve 1061, and the open end of the charge barrel 107 is clamped in the annular groove 1068. This is beneficial to prevent the propellant 3 from leaking out of the open end of the charge barrel 107.

[0036] Specifically, the medicine loading barrel 107 and the annular flange 1071 are an integral structure formed in one piece.

[0037] Specifically, the cover body 106 is an integrally formed structure.

[0038] The firing part 101 has various specific implementations:

[0039] In the first embodiment, the firing portion 101 is a blind hole structure recessed toward the tip portion 203 .

[0040] In the second embodiment, the firing portion 101 is a thin-walled structure.

[0041] In the third embodiment, the firing portion 101 is a conical structure coaxially arranged with the cartridge case 1 , and the tip of the conical structure faces the tip portion 203 .

[0042] The embodiments of this specific implementation are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. All equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A combined type bullet-nail integrated nail, comprising a cartridge case (1) and a nail (2) arranged coaxially; one axial end of the cartridge case (1) is a firing end (104), and the other end is a connecting end (105); the cartridge case (1) comprises a charge barrel (107) with one end open, the open end of the charge barrel (107) is sealed with a cover body (106) and encloses a charge chamber, and the charge chamber is filled with propellant (3); the cover body (106) is provided with a firing portion (101) located in the middle of the end surface of the firing end (104); the nail (2) comprises a nail body (201) arranged coaxially with the cartridge case (1), one end of the nail body (201) is provided with a connecting head (202), and the other end is provided with a tip portion (203); the characteristics are: The cover body (106) comprises a sleeve (1061), and a sealing plate (1062) is provided at one axial end of the sleeve (1061), so as to form a barrel-shaped structure with one end open and the other end closed; The sleeve (1061) is coaxially sleeved outside the medicine barrel (107), and the open end of the medicine barrel (107) is in contact with the sealing plate (1062); the sealing plate (1062) is located at the firing end (104), and the firing part (101) is arranged on the sealing plate (1062); There is a distance between the end surface of the medicine barrel (107) away from its own opening and the end of the sleeve (1061) away from the sealing plate (1062), and an installation groove is formed. The connecting head (202) is snap-fitted and installed in the installation groove.

2. The combined spring-nail integrated nail according to claim 1, characterized in that: The outer periphery of the medicine loading barrel (107) is provided with an annular convex edge (1071) arranged coaxially with the medicine loading barrel (107), and the annular convex edge (1071) is located at one end of the medicine loading barrel (107) adjacent to the connector (202); The inner cavity of the sleeve (1061) comprises a packaging section (1063) and a clamping section (1064) which are sequentially arranged along the direction from the firing end (104) to the connecting end (105); the packaging section (1063) and the clamping section (1064) are coaxially arranged, and the inner diameter of the packaging section (1063) is smaller than the inner diameter of the clamping section (1064); a step structure is formed at the connection between the packaging section (1063) and the clamping section (1064), and has an annular limiting surface (1065); the annular convex edge (1071) abuts against the annular limiting surface (1065); The connecting head (202) is snap-fitted and installed in the snap-fit ​​section (1064).

3. The combined spring-nail integrated nail according to claim 2, characterized in that: The sleeve (1061) is provided with a notch (1066) facing the tip portion (203), and the notch (1066) is located in the clamping section (1064).

4. The combined spring-nail integrated nail according to claim 2, characterized in that: An inclined surface (1067) located at the clamping section (1064) is provided on the outer wall of the sleeve (1061); the distance between the inclined surface (1067) and the axis L2 of the sleeve (1061) gradually decreases along the direction from the firing end (104) to the connecting end (105).

5. The combined spring-nail integrated nail according to claim 1, characterized in that: An annular groove (1068) is provided on the inner surface of the sealing plate (1062), which is coaxial with and adjacent to the sleeve (1061), and the open end of the medicine barrel (107) is clamped in the annular groove (1068).

6. The combined spring-nail integrated nail according to claim 2, characterized in that: The medicine loading barrel (107) and the annular flange (1071) are an integral structure formed in one piece.

7. The combined spring-nail integrated nail according to claim 1, characterized in that: The cover body (106) is an integrally formed structure.

8. The combined spring-nail integrated nail according to claim 1, characterized in that: The firing portion (101) is a blind hole structure recessed toward the tip portion (203).

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