A bellows for preventing leakage of welding liquid

Abstract

The utility model relates to the technical field of bellows, and discloses a bellows for preventing leakage of welding liquid, comprising a main body mechanism and an auxiliary connection mechanism, wherein the auxiliary connection mechanism is located at the rear side of the main body mechanism, and the main body mechanism comprises a bellows body, a first outer ring thread, a second outer ring thread, a first fixing frame and an inner ring thread. The bellows for preventing leakage of welding liquid, through the use of the main body mechanism, is threadedly connected and fixed with the inner ring thread inside the first fixing frame through the first outer ring thread on the front side of the bellows body when in use, and is fixed and fixed with the second fixing frame through the second outer ring thread on the rear side of the bellows body, and is fixed by fixing a fixed shell on the outside of the bellows body and welding is performed through the opening on the fixed shell, and the welding liquid generated when welding the bellows body will drip into the placement groove inside the fixed shell below for collection, thereby avoiding leakage of welding liquid, improving practicality, and being more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows, in particular to a bellows for preventing welding liquid from leaking. Background Art

[0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the folding and stretching direction. Bellows are widely used in instruments and meters. Their main purpose is to be used as a measuring element of pressure measuring instruments to convert pressure into displacement or force. The wall of the bellows is thinner and the sensitivity is higher. The measuring range is from tens of Pa to tens of MPa. Its open end is fixed, the sealed end is in a free state, and an auxiliary spiral spring or reed is used to increase the elasticity.

[0003] The prior art CN204239911U patent proposes a bellows for preventing leakage of welding liquid. The patent proposes a bellows, the outer periphery of which is covered with a mesh sleeve, the inner side of the axial end of the bellows is connected to a connecting pipe, and the bottom of the connecting pipe is provided with a clamping ring that is engaged with the inner wall of the bellows. The utility model effectively prevents the welding liquid formed after the welding ring melts during the welding process from leaking from between the connecting pipe and the bellows through the clamping ring structure, thereby improving the welding strength between the connecting pipe and the bellows.

[0004] The existing bellows for preventing the leakage of soldering liquid are not convenient for collecting the fallen soldering liquid and preventing it from leaking when in use, which makes the practicability of the equipment low and inconvenient to use. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model aims to provide a bellows for preventing leakage of soldering liquid, so as to solve the problem in the above-mentioned background technology that it is inconvenient to collect the fallen soldering liquid and avoid its leakage during use, which makes the practicability of the equipment low and inconvenient to use.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bellows for preventing leakage of welding liquid, comprising a main body structure and an auxiliary connecting mechanism, wherein the auxiliary connecting mechanism is located at the rear side of the main body structure, and the main body structure comprises a bellows body, a first outer circle thread, a second outer circle thread, a first fixing frame and an inner circle thread, wherein the first outer circle thread is evenly distributed at the outer end of the front side of the bellows body, the second outer circle thread is evenly distributed at the outer end of the rear side of the bellows body, the first fixing frame is fixedly installed at the outer end of the front side of the bellows body, the inner circle thread is evenly distributed on the inner side of the first fixing frame, and the first outer circle thread is threadedly connected to the outer end of the inner circle thread.

[0009] Preferably, the main body structure further includes a second fixing frame and a fixed shell, wherein the second fixing frame is fixedly mounted on the outer end of the rear side of the bellows body, and the fixed shell is fixedly mounted on the outer side of the bellows body.

[0010] Preferably, the main body structure further includes an opening and a placement groove, wherein the opening is fixedly opened on the right side of the middle portion above the outer end of the bellows body, and the placement grooves are evenly distributed on the inner side of the fixed shell.

[0011] Preferably, the auxiliary connecting mechanism includes a connecting pipe, a butt tube, a threaded connector, a right half clamp, a left half clamp, a mounting groove, a mounting block, a fixer, a butt connector, a threaded hole and a fixing bolt, the connecting pipe is fixedly mounted on the rear end of the second fixing frame, and the butt tube is movably connected to the rear end of the connecting pipe.

[0012] Preferably, the threaded connector is fixedly arranged at the front end of the butt tube, the threaded connector is threadedly connected to the inner side of the rear end of the connecting tube, the right half clamp is movably installed on the outer side of the connection between the connecting tube and the butt tube, and the left half clamp is movably installed on the left end of the right half clamp.

[0013] Preferably, the mounting groove is fixedly arranged in the middle part below the right end of the left half clamp, the mounting block is fixedly arranged in the middle part below the left end of the right half clamp, and the fixer is fixedly arranged in the middle part of the upper end of the left half clamp.

[0014] Preferably, the docking device is fixedly installed in the middle of the upper end of the right half clamp, the threaded holes are evenly distributed in the middle of the fixer and the docking device, and the fixing bolts are threadedly connected to the inner side of the threaded holes.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The bellows for preventing leakage of welding liquid is connected and fixed with the inner circle thread inside the first fixing frame through the first outer circle thread on the front side of the bellows body through the use of the main body mechanism, and is fixed and installed with the second fixing frame through the second outer circle thread on the rear side of the bellows body. The fixed shell is fixed to the outside of the bellows body and welding is performed through the opening on the fixed shell. When the bellows body is welded, the welding liquid generated will drip into the placement groove inside the fixed shell below, and the welding liquid will be collected to avoid leakage of the welding liquid, thereby improving the practicality and making it more convenient to use.

[0017] 2. The bellows for preventing leakage of welding liquid is fixedly connected to the second fixing frame through the connecting pipe when in use by using the auxiliary connecting mechanism. When the pipeline is extended, the threaded connector on the front side of the butt pipe is threadedly connected to the rear end of the connecting pipe. The right half clamp is fixed to the connection between the connecting pipe and the outer side of the butt pipe, and the right half clamp is fixed to the lower part of the left half clamp by inserting the mounting groove under the left half clamp into the mounting block under the right half clamp. The fixer and the butt joint above the right half clamp and the left half clamp are overlapped and butt jointed together, and the right half clamp is fixed to the left half clamp by threading the fixing bolt into the threaded hole in the middle of the fixer and the butt joint, so that the connection of the extended part is fixed more firmly to avoid leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the explosion details of the bellows body of the utility model;

[0020] Figure 3 This is a schematic diagram of the enlarged detail structure of the fixed housing of the utility model;

[0021] Figure 4 This is a schematic diagram of the exploded detail structure of the right half clamp of the utility model.

[0022] In the figure: 1. main body; 101. bellows body; 102. first outer circle thread; 103. second outer circle thread; 104. first fixing frame; 105. inner circle thread; 106. second fixing frame; 107. fixed shell; 108. opening; 109. placement groove; 2. auxiliary connecting mechanism; 201. connecting pipe; 202. butt pipe; 203. threaded connector; 204. right half clamp; 205. left half clamp; 206. mounting groove; 207. mounting block; 208. fixer; 209. butt joint; 210. threaded hole; 211. fixing bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4The utility model provides a technical solution: a bellows for preventing leakage of welding liquid, comprising a main body mechanism 1 and an auxiliary connecting mechanism 2, the auxiliary connecting mechanism 2 is located at the rear side of the main body mechanism 1, the main body mechanism 1 comprises a bellows body 101, a first outer circle thread 102, a second outer circle thread 103, a first fixing frame 104 and an inner circle thread 105, the first outer circle thread 102 is evenly distributed at the outer end of the front side of the bellows body 101, the second outer circle thread 103 is evenly distributed at the outer end of the rear side of the bellows body 101, the first fixing frame 104 is fixedly installed at the outer end of the front side of the bellows body 101, the inner circle thread 105 is evenly distributed on the inner side of the first fixing frame 104, and the first outer circle thread 102 is threadedly connected to the outer end of the inner circle thread 105.

[0025] The main body mechanism 1 also includes a second fixing frame 106 and a fixed outer shell 107. The second fixing frame 106 is fixedly installed on the outer end of the rear side of the bellows body 101, and the fixed outer shell 107 is fixedly installed on the outer side of the bellows body 101. The main body mechanism 1 also includes an opening 108 and a placement groove 109. The opening 108 is fixedly opened on the middle right side above the outer end of the bellows body 101, and the placement grooves 109 are evenly distributed on the inner side of the fixed outer shell 107.

[0026] The auxiliary connection mechanism 2 includes a connection pipe 201, a butt pipe 202, a threaded connector 203, a right half clamp 204, a left half clamp 205, a mounting groove 206, a mounting block 207, a fixer 208, a butt connector 209, a threaded hole 210 and a fixing bolt 211. The connection pipe 201 is fixedly mounted on the rear end of the second fixing frame 106, the butt pipe 202 is movably connected to the rear end of the connection pipe 201, the threaded connector 203 is fixedly arranged at the front end of the butt pipe 202, the threaded connector 203 is threadedly connected to the inner side of the rear end of the connection pipe 201, and the right half clamp 204 is movably mounted on the butt pipe 202. On the outer side of the connection between the connecting pipe 201 and the docking pipe 202, the left half clamp 205 is movably installed on the left end of the right half clamp 204, the mounting groove 206 is fixedly set in the middle part below the right end of the left half clamp 205, the mounting block 207 is fixedly installed in the middle part below the left end of the right half clamp 204, the fixer 208 is fixedly installed in the middle part of the upper end of the left half clamp 205, the docking device 209 is fixedly installed in the middle part of the upper end of the right half clamp 204, the threaded holes 210 are evenly distributed in the middle of the fixer 208 and the docking device 209, and the fixing bolts 211 are threadedly connected to the inner side of the threaded holes 210.

[0027] Working principle: When the bellows is needed to prevent leakage of welding liquid, the bellows is threadedly connected and fixed with the inner thread 105 on the inner side of the first fixing frame 104 through the first outer thread 102 on the front side of the bellows body 101, and is fixed with the second fixing frame 106 through the second outer thread 103 on the rear side of the bellows body 101. The fixed shell 107 is fixed to the outer side of the bellows body 101, and welding is performed through the opening 108 on the fixed shell 107. The welding liquid generated when welding the bellows body 101 will drip into the placement groove 109 on the inner side of the fixed shell 107 below, and it will be collected to prevent leakage of the welding liquid. It is fixedly connected with the second fixing frame 106 through the connecting pipe 201. When extending the pipeline, the threaded connector 203 on the front side of the butt pipe 202 is threadedly connected to the rear end of the connecting pipe 201, and the right half clamp 204 is fixed to the connection between the connecting pipe 201 and the outer side of the butt pipe 202, and the mounting groove 206 under the left half clamp 205 is inserted into the mounting block 207 under the right half clamp 204 to fix the right half clamp 204 and the left half clamp 205 below, and the fixer 208 and the docking device 209 above the right half clamp 204 and the left half clamp 205 are overlapped and docked together, and the fixing bolt 211 is threadedly connected to the threaded hole 210 in the middle of the fixer 208 and the docking device 209 to fix the right half clamp 204 and the left half clamp 205.

[0028] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A bellows for preventing leakage of welding liquid, comprising a main body mechanism (1) and an auxiliary connection mechanism (2), characterized in that: The auxiliary connection mechanism (2) is located at the rear side of the main mechanism (1), and the main mechanism (1) comprises a bellows body (101), a first outer circle thread (102), a second outer circle thread (103), a first fixing frame (104) and an inner circle thread (105), wherein the first outer circle thread (102) is evenly distributed at the outer end of the front side of the bellows body (101), the second outer circle thread (103) is evenly distributed at the outer end of the rear side of the bellows body (101), the first fixing frame (104) is fixedly installed at the outer end of the front side of the bellows body (101), the inner circle thread (105) is evenly distributed on the inner side of the first fixing frame (104), and the first outer circle thread (102) is threadedly connected to the outer end of the inner circle thread (105).

2. A bellows for preventing welding liquid leakage according to claim 1, characterized in that: The main body mechanism (1) further comprises a second fixing frame (106) and a fixing shell (107), wherein the second fixing frame (106) is fixedly mounted on the outer end of the rear side of the bellows body (101), and the fixing shell (107) is fixedly mounted on the outer side of the bellows body (101).

3. A bellows for preventing welding liquid leakage according to claim 2, characterized in that: The main body structure (1) further comprises an opening (108) and a placement groove (109), wherein the opening (108) is fixedly opened on the right side of the middle part above the outer end of the bellows body (101), and the placement groove (109) is evenly distributed on the inner side of the fixed outer shell (107).

4. A bellows for preventing welding liquid leakage according to claim 3, characterized in that: The auxiliary connection mechanism (2) comprises a connection pipe (201), a butt-joint pipe (202), a threaded connector (203), a right half clamp (204), a left half clamp (205), a mounting groove (206), a mounting block (207), a fixer (208), a butt joint (209), a threaded hole (210) and a fixing bolt (211); the connection pipe (201) is fixedly mounted on the rear end of the second fixing frame (106), and the butt-joint pipe (202) is movably connected to the rear end of the connection pipe (201).

5. A bellows for preventing welding liquid leakage according to claim 4, characterized in that: The threaded connector (203) is fixedly arranged at the front end of the butt-joint pipe (202), and the threaded connector (203) is threadedly connected to the inner side of the rear end of the connecting pipe (201). The right half clamp (204) is movably installed on the outer side of the connection between the connecting pipe (201) and the butt-joint pipe (202), and the left half clamp (205) is movably installed at the left end of the right half clamp (204).

6. A bellows for preventing welding liquid leakage according to claim 5, characterized in that: The mounting groove (206) is fixedly arranged in the middle part below the right end of the left half clamp (205), the mounting block (207) is fixedly arranged in the middle part below the left end of the right half clamp (204), and the fixer (208) is fixedly arranged in the middle part of the upper end of the left half clamp (205).

7. A bellows for preventing welding liquid leakage according to claim 6, characterized in that: The docking device (209) is fixedly mounted in the middle of the upper end of the right half clamp (204), the threaded holes (210) are evenly distributed in the middle of the fixer (208) and the docking device (209), and the fixing bolts (211) are threadedly connected to the inner side of the threaded holes (210).

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