Safe exothermic welding mold

Abstract

The present invention provides a safe exothermic welding mold, comprising a mold body, a cooling shell, a cover body and a smoke outlet pipe, wherein a reaction chamber is arranged on the mold body; the top opening of the cooling shell is arranged and the cover is arranged on the outside of the mold body, a cooling pipe is arranged on the inner plate of the side wall of the cooling shell, a liquid storage tank is arranged on the outer wall of the cooling shell, a cooling medium is arranged in the liquid storage tank, and both ends of the cooling pipe are connected to the liquid storage tank; the cover body is arranged on the top of the cooling shell; the smoke outlet pipe connects the reaction chamber with the liquid storage tank, an exhaust pipe is arranged on the liquid storage tank, a material insertion port is arranged on the cover body, the material insertion port is connected to the reaction chamber, and two slide plates are slidably arranged on the cover body. The present invention arranges a liquid storage tank and connects the cooling pipe and the liquid storage tank, and then takes away the heat of the mold body through the circulation of the cooling medium, thereby preventing the staff from being scalded; and the reaction chamber and the liquid storage barrel are connected through the smoke outlet pipe, thereby preventing smoke from polluting the environment.

Description

Technical Field

[0001] The invention belongs to the technical field of welding equipment, and more specifically, relates to a safe exothermic welding mold. Background Art

[0002] Exothermic welding is a simple, efficient and high-quality metal joining process. It uses the heat of chemical reaction of metal compounds as a heat source, and directly or indirectly heats the superheated reduced molten metal to form a fusion welded joint of a certain shape and size in the cavity of a special mold that meets engineering requirements. At present, exothermic welding has generally replaced the previous mechanical joining method between metals.

[0003] It is mainly used for welding metal materials in lightning protection and grounding projects, and is suitable for a variety of industries. It is more suitable for welding cables and other metal components in the field, and can also be used for welding copper core cables and steel structures or connecting copper core cables during the installation of cathodic protection systems.

[0004] To perform exothermic welding, a safe exothermic welding mold must be used. During the chemical reaction, a large amount of heat will be released instantly. The temperature in the cavity of the exothermic welding mold can reach 3000℃, and the energy generated can melt the metal. Within 10 minutes after the exothermic welding operation, the heat generated by the reaction in the exothermic welding mold is transferred, and the surface temperature of the exothermic welding mold will reach 80-200℃. During the exothermic welding construction process, there are many welding points, and the construction workers use the same exothermic welding mold for many cross operations. At the project site, construction workers are often burned by the exothermic welding mold or their hands during cross operations.

[0005] In addition, a large amount of smoke is often produced during the chemical reaction process. If it is allowed to be discharged, it will not only pollute the environment, but also be detrimental to the health of construction workers. Summary of the invention

[0006] The purpose of the present invention is to provide a safe exothermic welding mold to solve the problem that the existing exothermic welding mold is easy to burn workers and is harmful to the health of workers.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a safe exothermic welding mold, including a mold body, a cooling shell, a cover body and a smoke exhaust pipe, the mold body is provided with a reaction chamber; the top of the cooling shell is opened and covered on the outside of the mold body, the inner plate of the side wall of the cooling shell is provided with a cooling pipe, the outer wall of the cooling shell is provided with a liquid storage tank, the liquid storage tank is provided with a cooling medium, and both ends of the cooling pipe are connected to the liquid storage tank; the cover body is covered on the top of the cooling shell; the smoke exhaust pipe connects the reaction chamber with the liquid storage tank, the liquid storage tank is provided with an exhaust pipe, the cover body is provided with a material insertion port, the material insertion port is connected to the reaction chamber, and two slides are slidably provided on the cover body, and the slides can open or close the material insertion port.

[0008] In a possible implementation, the cover body is provided with a smoke exhaust hole, and when the cover body is completed, the smoke exhaust hole is connected to the smoke outlet pipe; a fixing ring is provided in the smoke outlet pipe, and a first spring is provided on the fixing ring, and an extension tube is provided at the top of the first spring, and when the first spring is in a natural state and the cover body is completed, a part of the extension tube extends out of the smoke outlet pipe and is inserted into the smoke exhaust hole, and when the first spring is compressed, the extension tube can be completely received in the smoke outlet pipe.

[0009] In a possible implementation, the smoke outlet pipe is provided with two L-shaped connecting plates, one end of the connecting plate is connected to the smoke outlet pipe, and the other end of the connecting plate is arranged on one side of the inlet of the smoke outlet pipe, and the end of the connecting plate that is not connected to the smoke outlet pipe is provided with a vertical plate, and the distance between the two vertical plates is greater than the diameter of the smoke outlet pipe, and the bottom ends of the two vertical plates are provided with a horizontal plate, and the vertical plate is provided with a first sliding groove, and a baffle is slidably provided in the first sliding groove, and the baffle can be slid down under the smoke outlet pipe, and the baffle can slide up to block the smoke outlet pipe, and a second spring is provided at the top of the horizontal plate, and the second spring is connected to the baffle, and when the second spring is in a natural state, the baffle blocks the smoke outlet pipe.

[0010] In a possible implementation, the cover body is provided with two second slide grooves, and the two second slide grooves are respectively arranged on both sides of the smoke exhaust hole, an unlocking plate is provided on one side of the cover body, and a limiting strip is provided on the unlocking plate, and the limiting strip is adapted to the shape of the second slide groove, and the limiting strip is inserted in the second slide groove, and a through hole is provided on the unlocking plate, and the diameter of the through hole is not less than the diameter of the smoke exhaust hole. When the cover body is completed, the unlocking plate is arranged above the baffle, and the unlocking plate can slide down to drive the baffle to slide down, and the extension pipe can pass through the through hole and penetrate into the smoke exhaust hole.

[0011] In a possible implementation, the cover body is provided with a strip hole, the strip hole extends along the axial direction of the smoke exhaust hole, the strip hole is communicated with the smoke exhaust hole, a sliding rod is inserted into the strip hole, the bottom of the sliding rod is connected to a sealing tube, the outer diameter of the sealing tube is the same as the diameter of the smoke exhaust hole, and when the cover body is completed, the sliding of the sliding rod can drive the sealing tube to partially extend out of the smoke exhaust hole, or the sliding rod can be completely received in the smoke exhaust hole due to sliding, and the sealing tube blocks the bottom end of the strip hole.

[0012] In one possible implementation, the cooling shell includes a left shell and a right shell, the left shell and the right shell have the same shape, the liquid storage tank is arranged on the left shell, and the cover body is hinged on the right shell, the left shell is provided with a plurality of holes, the holes are connected to the cooling pipes in the left shell, the right shell is provided with a plurality of plugs, the plugs are connected to the cooling pipes in the right shell, the holes correspond to the plugs one by one, and the plugs are inserted into the corresponding holes.

[0013] In a possible implementation, the mold body includes two mold bodies, two welding bodies and a locking assembly, each of the mold bodies is provided with a reaction groove, and when the two mold bodies are buckled together, the reaction grooves are buckled into a reaction chamber; the mold bodies correspond one to one with the welding bodies, and the welding bodies are rotatably arranged on the corresponding mold bodies, and the welding bodies have multiple welding surfaces, each of which is provided with a welding groove, and the welding bodies are provided with a slot, which is connected to the welding slot, and when the two mold bodies are buckled together, the welding grooves are buckled into a welding chamber, and the slots are buckled into a material hole for inserting the welded parts; the locking assembly is arranged between the welding body and the corresponding mold body, and the locking assembly is locked to relatively fix the welding body and the corresponding mold body.

[0014] In one possible implementation, a pivot groove is provided on the mold body, the side walls of the pivot groove are arc-shaped, mounting plates are provided at both ends of the pivot groove, and pivot holes are provided on the mounting plates. The top wall and bottom wall of the welding body are arranged to be arc-shaped to match the pivot groove, and pivot rods are provided at both ends of the welding body, and the pivot rods are inserted into the pivot holes. When one of the welding surfaces of the welding body is flush with the corresponding welding surface of the mold body, the top wall and the bottom wall of the welding body are both in contact with the side walls of the pivot groove.

[0015] In one possible implementation, the locking assembly includes a card block and a card slot, the card slot is provided on the mold body, the card slot is connected to the pivot slot, the side wall of the card block includes a card plane and a card arc surface, the shape of the card plane is the same as the welding surface, the card arc surface is adapted to the pivot slot, so that the card block can be inserted into the pivot slot on one side of the welding body, and the card block is provided with a limit strip, which is inserted into the card slot.

[0016] In a possible implementation, both ends of the card block are provided with a first receiving groove, a fourth spring is provided in the first receiving groove, and a card plate is provided at the top of the fourth spring. When the fourth spring is in a natural state, part of the card plate extends to the outside of the first receiving groove, and the card plate can be completely received in the first receiving groove due to the compression of the fourth spring. Second receiving grooves are provided on the two side walls of the mold body. When the card block is inserted in the pivot groove, the first receiving groove is connected to the second receiving groove.

[0017] The beneficial effects of the safe exothermic welding mold provided by the present invention are as follows: compared with the prior art, the present invention provides a cooling shell, the cooling shell cover is provided on the outside of the mold body, the inner wall inner plate of the cooling shell is provided with a cooling pipe, and a liquid storage tank is provided and the cooling pipe and the liquid storage tank are connected, so that the heat of the mold body is taken away by the circulation of the cooling medium, thereby achieving the purpose of cooling, thereby preventing the staff from being scalded; and a smoke outlet pipe is provided, the smoke outlet pipe connects the reaction chamber and the liquid storage barrel, so that the generated smoke passes into the liquid storage tank, and is discharged after being filtered by the cooling medium in the liquid storage tank, thereby achieving the purpose of preventing smoke from polluting the environment and preventing smoke from being detrimental to the health of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A schematic structural diagram of a safe exothermic welding mold provided by an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A magnified view of part A;

[0021] Figure 3 A schematic diagram of a top view of a cover body provided in an embodiment of the present invention;

[0022] Figure 4 for Figure 3A cross-sectional view of the cover along the CC direction;

[0023] Figure 5 for Figure 4 A magnified view of part B;

[0024] Figure 6 A schematic diagram of the structure of the extended pipe provided in an embodiment of the present invention when it penetrates into the smoke exhaust hole;

[0025] Figure 7 A schematic diagram of a structure in which a sealing pipe portion provided in an embodiment of the present invention extends out of a smoke exhaust hole;

[0026] Figure 8 A schematic diagram of the structure of an unlocking plate provided in an embodiment of the present invention;

[0027] Fig. 9 A schematic structural diagram of a mold body provided by an embodiment of the present invention;

[0028] Fig.10 A schematic diagram of the structure of a phantom provided by an embodiment of the present invention;

[0029] Fig.11 for Fig.10 A magnified view of the D portion;

[0030] Fig.12 A schematic structural diagram of a welding body provided by an embodiment of the present invention at one angle;

[0031] Fig.13 A schematic structural diagram of a welding body provided by an embodiment of the present invention from another angle;

[0032] Fig.14 A schematic diagram of the structure of a card block provided in an embodiment of the present invention.

[0033] Among them, the reference numerals in the figures are as follows:

[0034] 1. Mold body; 2. Cooling shell; 3. Cover; 4. Smoke outlet pipe;

[0035] 101, reaction tank; 102, pivoting slot; 103, mounting plate; 104, pivoting hole; 105, first flow tank; 106, clamping slot; 107, second receiving tank; 108, first fixing hole; 109, second fixing hole; 110, welding body; 111, first welding surface; 112, second welding surface; 113, first welding slot; 114, second welding slot; 115, first material tank; 116, second material tank; 117, material hole; 118, pivoting rod; 119, second flow tank; 120, clamping block; 121, clamping plane; 122, clamping arc surface; 123, limiting strip; 124, first receiving tank; 125, fourth spring; 126, clamping plate;

[0036] 201, liquid storage tank; 202, circulation pipe; 203, exhaust pipe; 204, left shell; 205, right shell;

[0037] 301, slide plate; 302, fixing block; 303, third spring; 304, smoke exhaust hole; 305, unlocking plate; 306, guide strip; 307, through hole; 308, anti-slip plate; 309, strip hole; 310, slide bar; 311, second spring;

[0038] 401, fixing ring; 402, first spring; 403, extension tube; 404, connecting plate; 405, vertical plate; 406, first slide groove; 407, baffle. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] It should be further explained that the drawings and implementation modes of the present invention mainly describe the concept of the present invention. On the basis of this concept, the specific forms and settings of some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a well-known manner.

[0041] When an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0042] The directions or positional relationships indicated by terms such as “length”, “width”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0043] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, and "several" means one or more, unless otherwise clearly and specifically defined.

[0044] The safe exothermic welding mold provided by the present invention is now described.

[0045] Please also read Figure 1 , a safe exothermic welding mold, comprising a mold body 1, a cooling shell 2, a cover body 3 and a smoke outlet pipe 4, the mold body 1 is provided with a reaction chamber; the cooling shell 2 is opened at the top and is covered on the outside of the mold body 1, the inner plate of the side wall of the cooling shell 2 is provided with a cooling pipe, the outer wall of the cooling shell 2 is provided with a liquid storage tank 201, the liquid storage tank 201 is provided with a cooling medium, and both ends of the cooling pipe are connected to the liquid storage tank 201; the cover body 3 is covered on the top of the cooling shell 2; the smoke outlet pipe 4 connects the reaction chamber with the liquid storage tank 201, the liquid storage tank 201 is provided with an exhaust pipe 203, the cover body 3 is provided with a material insertion port, the material insertion port is connected to the reaction chamber, and two slide plates 301 are slidably provided on the cover body 3, and the slide plates 301 can open or close the material insertion port.

[0046] The exothermic welding mold provided in the present embodiment has the following beneficial effects: compared with the prior art, the exothermic welding mold provided in the present embodiment is provided with a cooling shell 2, the cooling shell 2 is covered on the outside of the mold body 1, the inner wall inner plate of the cooling shell 2 is provided with a cooling pipe, and a liquid storage tank 201 is provided and the cooling pipe and the liquid storage tank 201 are connected, and the heat of the mold body 1 is taken away by the circulation of the cooling medium, so as to achieve the purpose of cooling, thereby preventing the staff from being scalded; and a smoke outlet pipe 4 is provided, and the smoke outlet pipe 4 connects the reaction chamber and the liquid storage barrel, so that the generated smoke passes into the liquid storage tank 201, and is discharged after being filtered by the cooling medium in the liquid storage tank 201, so as to achieve the purpose of preventing smoke from polluting the environment and preventing smoke from being detrimental to the health of the staff.

[0047] like Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the cover body 3 is provided with a smoke exhaust hole 304, and when the cover body 3 is covered, the smoke exhaust hole 304 is connected with the smoke outlet pipe 4; a fixing ring 401 is provided inside the smoke outlet pipe 4, and a first spring 402 is provided on the fixing ring 401, and an extension tube 403 is provided at the top of the first spring 402, and when the first spring 402 is in a natural state and the cover body 3 is covered, a part of the extension tube 403 extends out of the smoke outlet pipe 4 and is inserted into the smoke exhaust hole 304, and when the first spring 402 is compressed, the extension tube 403 can be completely received in the smoke outlet pipe 4. The extension tube is inserted into the smoke exhaust hole 304, which can make the connection between the smoke exhaust hole 304 and the smoke outlet pipe 4 more sealed and firm.

[0048] like Figure 2 As shown, the smoke outlet pipe 4 is provided with two L-shaped connecting plates 404, one end of the connecting plate 404 is connected to the smoke outlet pipe 4, and the other end of the connecting plate 404 is arranged on one side of the inlet of the smoke outlet pipe 4, and the end of the connecting plate 404 that is not connected to the smoke outlet pipe 4 is provided with a vertical plate 405, and the distance between the two vertical plates 405 is greater than the diameter of the smoke outlet pipe 4, and the bottom ends of the two vertical plates 405 are provided with a horizontal plate, and the vertical plate 405 is provided with a first sliding groove 406, and a baffle 407 is slidably provided in the first sliding groove 406, and the baffle 407 can be slid down under the smoke outlet pipe 4, and the baffle 407 can slide up to block the smoke outlet pipe 4, and a second spring 311 is provided at the top of the horizontal plate, and the second spring 311 is connected to the baffle 407, and when the second spring 311 is in a natural state, the baffle 407 blocks the smoke outlet pipe 4. Initially, the extension tube 403 is sealed in the smoke outlet pipe 4 , and then when the cover body 3 is installed, the blocking of the smoke outlet pipe 4 by the baffle 407 is released, and the extension tube 403 can be inserted into the smoke exhaust hole 304 .

[0049] Then, two second slide grooves are provided on the cover body 3, and the two second slide grooves are respectively provided on both sides of the smoke exhaust hole 304. An unlocking plate 305 is provided on one side of the cover body 3, and a guide groove bar is provided on the unlocking plate 305. The guide bar 306 is adapted to the shape of the second slide groove, and the guide bar 306 is inserted in the second slide groove. A through hole 307 is provided on the unlocking plate 305, and the diameter of the through hole 307 is not less than the diameter of the smoke exhaust hole 304. When the cover body 3 is covered, the unlocking plate 305 is arranged above the baffle 407, and the unlocking plate 305 slides down to drive the baffle 407 to slide down, and the extension pipe 403 can pass through the through hole 307 and go deep into the smoke exhaust hole 304. The setting of the unlocking plate 305 can facilitate the removal of the baffle 407 from blocking the smoke outlet pipe 4.

[0050] The cover body 3 is provided with a strip hole 309, which extends along the axial direction of the smoke exhaust hole 304, and the strip hole 309 is connected with the smoke exhaust hole 304. A slide bar 310 is inserted in the strip hole 309, and a sealing tube is connected to the bottom of the slide bar 310. The outer diameter of the sealing tube is the same as the diameter of the smoke exhaust hole 304. When the cover body 3 is covered, the slide bar 310 can slide to drive the sealing tube to partially extend out of the smoke exhaust hole 304, or the slide bar 310 can be completely received in the smoke exhaust hole 304 due to sliding, and the sealing tube blocks the bottom end of the strip hole 309. The setting of the slide bar 310 can facilitate the release of the insertion of the extension tube 403 in the smoke exhaust pipe. When the slide bar 310 moves to the right end of the strip hole 309, the extension tube 403 is just completely received in the smoke exhaust pipe 4, and then the unlocking plate 305 is pressed to complete the opening of the cover body 3.

[0051] like Figure 1 As shown, the cooling shell 2 includes a left shell 204 and a right shell 205, the left shell 204 and the right shell 205 have the same shape, the liquid storage tank 201 is arranged on the left shell 204, and the cover 3 is hinged on the right shell 205. The left shell 204 is provided with a plurality of jacks, which are connected to the cooling pipes in the left shell 204, and the right shell 205 is provided with a plurality of plugs, which are connected to the cooling pipes in the right shell 205, and the jacks correspond to the plugs one by one, and the plugs are inserted into the corresponding jacks. A circulation pipe 202 is arranged on the shell, and a circulation pump is arranged on the circulation pipe 202, and one end of the circulation pipe 202 is connected to the cooling pipe, so that the circulation pump can drive the cooling medium to circulate.

[0052] like Figure 8 As shown, the top of the unlocking plate 305 is provided with an anti-slip plate 308, and the setting of the anti-slip plate 308 can prevent the unlocking plate 305 from falling off the cover body 3. The cover body 3 is provided with an insertion port, and the magnesium strip that triggers the chemical reaction is inserted through the insertion port. Two fixed blocks 302 are provided on the cover body 3, and the opposite end of the fixed block 302 is provided with a third spring 303. The slide plate 301 is arranged on the top of the third spring 303. When the third spring 303 is in a natural state, the two slide plates 301 abut against each other and block the insertion port. At the same time, the slide plate 301 can also clamp the magnesium strip. When the magnesium strip is burned, the insertion port is automatically blocked to prevent smoke from spreading.

[0053] In addition, if Fig. 9 and Fig.10As shown, the mold body 1 includes two mold bodies, two welding bodies 110 and a locking assembly, wherein each mold body is provided with a reaction groove 101, and when the two mold bodies are buckled, the reaction groove 101 is buckled into a reaction cavity; the mold body corresponds to the welding body 110 one by one, and the welding body 110 is rotatably arranged on the corresponding mold body, and the welding body 110 has a plurality of welding surfaces, each welding surface is provided with a welding groove, and the welding body 110 is provided with a slot, and the slot is connected with the welding slot, and when the two mold bodies are buckled, the welding grooves are buckled into a welding cavity, and the slots are buckled into a material hole 117 for inserting the welded parts; the locking assembly is arranged between the welding body 110 and the corresponding mold body, and the locking assembly is locked to relatively fix the welding body 110 and the corresponding mold body.

[0054] Specifically in this embodiment, Fig.12 and Fig.13 As shown, each welding body 110 has two welding surfaces, including a first welding surface 111 and a second welding surface 112. The first welding surface 111 is provided with a first welding groove 113 and a first material groove 115, and the first material groove 115 is connected to the first welding groove 113. It is worth noting that the cross section of the first material groove 115 is rectangular, and the shape of the first welding groove 113 is adapted to the first material groove 115. The cross section of the material hole 117 formed by the two first material grooves 115 is square, so as to facilitate welding of objects with square cross sections.

[0055] The second welding surface 112 is provided with a second welding groove 114 and a second material groove 116, and the second material groove 116 is in communication with the second welding groove 114. It is worth noting that the cross section of the second material groove 116 is semicircular, and the shape of the second welding groove 114 is adapted to the second material groove 116. The cross section of the material hole 117 formed by the two second material grooves 116 is circular, so as to facilitate welding of objects with circular cross sections.

[0056] A pivot groove 102 is provided on the mold body of the present invention, and the side walls of the pivot groove 102 are arc-shaped. Mounting plates 103 are provided at both ends of the pivot groove 102, and a pivot hole 104 is provided on the mounting plate 103. The top wall and bottom wall of the welding body 110 are arranged in an arc shape that matches the pivot groove 102. Pivot rods 118 are provided at both ends of the welding body 110, and the pivot rods 118 are inserted into the pivot holes 104. When one welding surface of the welding body 110 is flush with the welding surface of the corresponding mold body, the top wall and the bottom wall of the welding body 110 are both in contact with the side walls of the pivot groove 102.

[0057] As described above, on the one hand, the rotation of the welding body 110 can be facilitated, so that the two first welding surfaces 111 can be buckled together or the two second welding surfaces 112 can be buckled together. On the other hand, when in use, the arc-shaped top wall and bottom wall of the welding body 110 abut against the side wall of the pivot groove 102, which can effectively block the molten metal in the outer welding cavity, so as to facilitate welding of the objects to be welded.

[0058] Combination Fig.12 and Fig.13 As shown, each mold body is provided with a first liquid flow groove 105, and the first liquid flow groove 105 is connected with the reaction groove 101. Each welding surface of the welding body 110 is provided with a second liquid flow groove 119, and the second liquid flow groove 119 is connected with the welding groove. When the two mold bodies are buckled, the two first liquid flow grooves 105 are buckled into a first liquid flow hole, and the two second liquid flow grooves 119 are buckled into a second liquid flow hole. The first liquid flow hole is connected with the second liquid flow hole, so that the reaction chamber and the welding chamber are connected.

[0059] The arrangement of the first flow hole and the second flow hole can facilitate the metal liquid generated in the reaction chamber to flow into the welding chamber, so as to weld the objects to be welded. In addition, as shown in the combined figure and the figure, the first flow trough 105 is arranged below the reaction trough 101, and the first flow trough 105 is arranged vertically; the second flow trough 119 is arranged above the welding trough, and the second flow trough 119 is arranged vertically, so that the length of the first flow hole and the second flow hole is the shortest, preventing the metal liquid from solidifying in the first flow hole and the second flow hole due to the temperature drop caused by the long flow time, which is conducive to the welding.

[0060] Combination Fig.10 , Fig.11 and Fig.14 As shown, the locking assembly includes a block 120 and a slot 106, the slot 106 is arranged on the mold body, the slot 106 is connected to the pivot slot 102, the side wall of the block 120 includes a clamping plane 121 and a clamping arc surface 122, the shape of the clamping plane 121 is the same as the welding surface, the clamping arc surface 122 is adapted to the pivot slot 102, so that the block 120 can be inserted into the pivot slot 102 on one side of the welding body 110, and a limit strip 123 is provided on the block 120, and the limit strip 123 is inserted into the slot 106.

[0061] When the first welding surface 111 of the welding body 110 is flush with the side wall of the mold body, the two welding surfaces of the welding body 110 are arranged vertically. At this time, the clamping block 120 is inserted into the remaining space of the pivot slot 102, and the cross section of the assembly formed by the clamping block 120 and the welding body 110 is the same as the cross section of the pivot slot 102. At this time, since the limit strip 123 is inserted into the clamping slot 106, the assembly formed by the clamping block 120 and the welding body 110 cannot rotate in the pivot slot 102, thereby achieving the fixation of the first welding surface 111. When the second welding surface 112 needs to be fixed, the same fixing operation as the above-mentioned fixing operation of the first welding surface 111 is performed.

[0062] A first receiving groove 124 is provided at both ends of the block 120, a fourth spring 125 is provided in the first receiving groove 124, a clamping plate 126 is provided at the top of the fourth spring 125, when the fourth spring 125 is in a natural state, part of the clamping plate 126 extends out of the first receiving groove 124, the clamping plate 126 can be completely received in the first receiving groove 124 due to the compression of the fourth spring 125, and a second receiving groove 107 is provided on the two side walls of the mold body, when the block 120 is inserted in the pivot groove 102, the first receiving groove 124 is connected with the second receiving groove 107.

[0063] When the card block 120 is inserted, the card plate 126 is first completely received in the first receiving groove 124, and then the card block 120 is inserted. When inserted into place, the card plate 126 extends under the action of the fourth spring 125, and part of the card plate 126 extends into the second receiving groove 107. At this time, due to the clamping of the card plate 126, the card block 120 can no longer move along the width direction of the pivot groove 102, that is, the card block 120 is fixed in the pivot groove 102.

[0064] When the card block 120 needs to be pulled out, it is only necessary to slide the card plate 126 of one section of the card block 120 until it is completely received in the receiving groove, and then pull it out. Such a configuration has a simple structure and is easy to use. In addition, it can also reduce the production difficulty of the safe exothermic welding mold of the present invention, which is conducive to the promotion of the safe exothermic welding mold.

[0065] The distance between the mounting plate 103 and the welding surface is greater than the depth of the slot, which can prevent the arrangement of the mounting plate 103 from interfering with the insertion of the object to be welded into the material hole 117 .

[0066] In order to facilitate the mutual fixing of the two mold bodies, four first fixing holes 108 are opened on one of the mold bodies, and four first insertion rods are set on the other mold body. The first insertion rods correspond to the first fixing holes 108 one by one. When the two mold bodies are buckled together, the first insertion rods are inserted into the corresponding first fixing holes 108. Of course, the number of the first insertion rods and the first fixing holes 108 is not limited to four, and can also be two, three, five or even more suitable numbers.

[0067] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A safe exothermic welding mold, characterized in that: include: A mold body (1), wherein a reaction chamber is provided on the mold body (1); A cooling shell (2) is provided with an opening at the top and is covered on the outside of the mold body (1); a cooling pipe is provided on the inner plate of the side wall of the cooling shell (2); a liquid storage tank (201) is provided on the outer wall of the cooling shell (2); a cooling medium is provided in the liquid storage tank; and both ends of the cooling pipe are connected to the liquid storage tank (201); A cover body (3) is arranged on the top of the cooling shell (2), the cover body (3) is provided with a material insertion port, the material insertion port is communicated with the reaction chamber, and two slide plates (301) are slidably provided on the cover body (3), and the slide plates (301) can open or close the material insertion port; a smoke outlet pipe (4), the smoke outlet pipe (4) connecting the reaction chamber with the liquid storage tank (201), the liquid storage tank (201) being provided with an exhaust pipe (203); The mold body (1) comprises two mold bodies, two welding bodies (110) and a locking assembly, each of the mold bodies being provided with a reaction groove (101), and when the two mold bodies are buckled together, the reaction grooves (101) are buckled together to form a reaction chamber; the mold bodies correspond to the welding bodies (110) one by one, the welding bodies (110) are rotatably arranged on the corresponding mold bodies, the welding bodies (110) have a plurality of welding surfaces, each of the welding surfaces is provided with a welding groove, the welding bodies (110) are provided with a slot, the slot is in conduction with the welding groove, and when the two mold bodies are buckled together, the welding grooves are buckled together to form a welding chamber, and the slots are buckled together to form a material hole (117) for inserting a part to be welded; the locking assembly is arranged between the welding body (110) and the corresponding mold body, and the locking assembly is locked so that the welding body (110) and the corresponding mold body are relatively fixed; The mold body is provided with a pivot groove (102), the side wall of the pivot groove (102) is arc-shaped, mounting plates (103) are provided at both ends of the pivot groove (102), and the mounting plates (103) are provided with a pivot hole (104), the top wall and the bottom wall of the welding body (110) are arranged in an arc shape that matches the pivot groove (102), the two ends of the welding body (110) are provided with pivot rods (118), the pivot rods (118) are inserted into the pivot holes (104), and when one of the welding surfaces of the welding body (110) is flush with the corresponding welding surface of the mold body, the top wall and the bottom wall of the welding body (110) are both in contact with the side wall of the pivot groove (102); The locking assembly comprises a clamping block (120) and a clamping slot (106); the clamping slot (106) is provided on the mold body; the clamping slot (106) is in conduction with the pivoting slot (102); a side wall of the clamping block (120) comprises a clamping plane (121) and a clamping arc surface (122); the shape of the clamping plane (121) is the same as that of the welding surface; the clamping arc surface (122) is adapted to the pivoting slot (102) so that the clamping block (120) can be inserted into the pivoting slot (102) on one side of the welding body (110); a limiting strip (123) is provided on the clamping block (120); the limiting strip (123) is inserted into the clamping slot (106); Both ends of the clamping block (120) are provided with first receiving grooves (124), a fourth spring (125) is provided in the first receiving groove (124), a clamping plate (126) is provided at the top end of the fourth spring (125), when the fourth spring (125) is in a natural state, part of the clamping plate (126) extends out of the first receiving groove (124), the clamping plate (126) can be completely received in the first receiving groove (124) due to the compression of the fourth spring (125), second receiving grooves (107) are provided on the two side walls of the mold body, when the clamping block (120) is inserted in the pivot groove (102), the first receiving groove (124) is connected to the second receiving groove (107); Each welding body (110) has two welding surfaces, including a first welding surface (111) and a second welding surface (112); a first welding groove (113) and a first material groove (115) are provided on the first welding surface (111); the first material groove (115) and the first welding groove (113) are connected; the cross section of the first material groove (115) is rectangular; a second welding groove (114) and a second material groove (116) are provided on the second welding surface (112); the second material groove (116) and the second welding groove (114) are connected; the cross section of the second material groove (116) is semicircular.

2. The safe exothermic welding mold according to claim 1, characterized in that: The cover body (3) is provided with a smoke exhaust hole (304), and when the cover body (3) is covered, the smoke exhaust hole (304) is connected to the smoke outlet pipe (4); a fixing ring (401) is provided inside the smoke outlet pipe (4), and a first spring (402) is provided on the fixing ring (401), and an extension tube (403) is provided at the top end of the first spring (402); when the first spring (402) is in a natural state and the cover body (3) is covered, a part of the extension tube (403) extends out of the smoke outlet pipe (4) and is inserted into the smoke exhaust hole (304), and when the first spring (402) is compressed, the extension tube (403) can be completely received in the smoke outlet pipe (4).

3. The safe exothermic welding mold according to claim 2, characterized in that: The smoke outlet pipe (4) is provided with two L-shaped connecting plates (404), one end of the connecting plate (404) is connected to the smoke outlet pipe (4), the other end of the connecting plate (404) is arranged on one side of the inlet of the smoke outlet pipe (4), the end of the connecting plate (404) not connected to the smoke outlet pipe (4) is provided with a vertical plate (405), the distance between the two vertical plates (405) is greater than the diameter of the smoke outlet pipe (4), the bottom ends of the two vertical plates (405) are provided with horizontal plates, and the vertical plates (405) are provided with a plurality of vertical plates (405). ) is provided with a first slide groove (406), a baffle (407) is slidably provided in the first slide groove (406), the baffle (407) can be slid down under the smoke outlet pipe (4), and the baffle (407) can slide up to block the smoke outlet pipe (4), a second spring (311) is provided at the top end of the horizontal plate, the second spring (311) is connected to the baffle (407), and when the second spring (311) is in a natural state, the baffle (407) blocks the smoke outlet pipe (4).

4. The safe exothermic welding mold according to claim 3, characterized in that: The cover body (3) is provided with two second slide grooves, and the two second slide grooves are respectively arranged on both sides of the smoke exhaust hole (304). An unlocking plate (305) is provided on one side of the cover body (3). A guide bar (306) is provided on the unlocking plate (305). The guide bar (306) is adapted to the shape of the second slide groove. The guide bar (306) is inserted into the second slide groove. A through hole (307) is provided on the unlocking plate (305). The diameter of the through hole (307) is not less than the diameter of the smoke exhaust hole (304). When the cover body (3) is covered, the unlocking plate (305) is arranged above the baffle (407). The unlocking plate (305) can slide down to drive the baffle (407) to slide down, and the extended pipe (403) can pass through the through hole (307) and penetrate into the smoke exhaust hole (304).

5. The safe exothermic welding mold according to claim 4, characterized in that: The cover body (3) is provided with a strip hole (309), the strip hole (309) extending along the axial direction of the smoke exhaust hole (304), the strip hole (309) being connected to the smoke exhaust hole (304), a sliding rod (310) being inserted into the strip hole (309), the bottom of the sliding rod (310) being connected with a sealing tube, the outer diameter of the sealing tube being the same as the diameter of the smoke exhaust hole (304), when the cover body (3) is completed, the sliding rod (310) can slide to drive the sealing tube to partially extend out of the smoke exhaust hole (304), or the sliding rod (310) can be completely received in the smoke exhaust hole (304) due to sliding, and the sealing tube blocks the bottom end of the strip hole (309).

6. The safe exothermic welding mold according to claim 1, characterized in that: The cooling shell (2) comprises a left shell (204) and a right shell (205), the left shell (204) and the right shell (205) having the same shape, the liquid storage tank (201) being arranged on the left shell (204), and the cover body (3) being hinged on the right shell (205), the left shell (204) being provided with a plurality of jacks, the jacks being connected to the cooling pipes in the left shell (204), the right shell (205) being provided with a plurality of plugs, the plugs being connected to the cooling pipes in the right shell (205), the jacks corresponding to the plugs one by one, and the plugs being inserted into the corresponding jacks.

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