Connecting pipeline for combustion heat supply equipment

Abstract

The utility model relates to the technical field of heat supply equipment, and discloses a connecting pipeline for combustion heat supply equipment, which comprises a heat supply furnace and a connecting pipe, the upper part of the heat supply furnace is fixedly connected with a fixed pipe, and the upper part and the bottom of the inner surface of the fixed pipe are both provided with grooves; a connecting inner pipe is fixedly connected to the side, close to the fixing pipe, of the connecting pipe, T-shaped grooves are formed in the top and the bottom of the connecting inner pipe correspondingly, two springs are fixedly connected to the interiors of the two T-shaped grooves correspondingly, clamping blocks are fixedly connected to the ends, away from the connecting inner pipe, of the two springs correspondingly, and retraction mechanisms are arranged in the T-shaped grooves. According to the device, the connecting pipe and the connecting inner pipe are pushed to slide towards the inner side of the fixing pipe, the spring is loosened when the clamping block is matched with the groove, the connecting pipe and the fixing pipe are clamped, the retraction mechanism is driven to enable the first rack and the clamping block to move downwards to compress the spring, then the connecting pipe is pulled out, and the disassembly and assembly working efficiency during maintenance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating equipment, and more specifically, to a connecting pipe for combustion heating equipment. Background Art

[0002] Catalytic combustion can achieve complete combustion of fuel at a lower temperature, which plays an extremely important role in improving the combustion process, reducing the reaction temperature, promoting complete combustion, and inhibiting the formation of toxic and harmful substances. It is an environmentally friendly process, and its application field is constantly expanding. It has been widely used in many aspects of industrial production and daily life. Among them, the pipes of the heating furnace play the role of transferring heat energy. The heating furnace and its pipes need to be maintained and repaired after long-term use, especially the maintenance and repair between the fixed pipes and the connecting pipes of the heating furnace. The existing fixed pipes and connecting pipes of the heating furnace are usually fixed with multiple sets of bolts, and the disassembly and assembly efficiency is low during maintenance. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a connecting pipe for combustion heating equipment, which has the advantage of high disassembly and assembly efficiency during maintenance and repair of the fixed pipe and the connecting pipe of the heating furnace.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connecting pipe for combustion heating equipment, comprising a heating furnace and a connecting pipe, a fixed pipe is fixedly connected to the upper part of the heating furnace, the upper and bottom of the inner surface of the fixed pipe are provided with grooves, a connecting inner pipe is fixedly connected to the side of the connecting pipe close to the fixed pipe, the top and bottom of the connecting inner pipe are respectively provided with T-slots, two groups of springs are fixedly connected to the inside of two groups of T-slots, and a retaining block is fixedly connected to the end of the two groups of springs away from the connecting inner pipe, a square groove is provided in the middle of the retaining block, and a retraction mechanism is provided inside the T-slot.

[0005] As a preferred technical solution of the utility model, the top surface of the locking block is provided with a second slope.

[0006] As a preferred technical solution of the utility model, the retraction mechanism includes a limit groove opened inside the T-slot, the limit groove is internally slidably connected to a limit block, the top of the limit block is fixedly connected to a second rack, a movable groove is opened on the side of the connecting inner tube, the end of the second rack is overlapped with the inside of the movable groove, and the two ends of the second rack are respectively fixedly connected to pull rods.

[0007] As a preferred technical solution of the utility model, the retraction mechanism also includes a second gear meshing with a second rack, the interior of the second gear is fixedly connected to a rotating shaft, one end of the rotating shaft is rotatably connected to the interior of the T-slot, and the other end of the rotating shaft is rotatably connected to the interior of a fixed seat, and the outer side of one end of the rotating shaft away from the second gear is fixedly connected to a first gear, and one side of the first gear can be meshed with a first rack fixedly connected to the interior of the square groove.

[0008] As a preferred technical solution of the utility model, first slopes are provided at the upper and lower inner openings of the fixing tube, and the cross section of the groove matches the cross section of the positioning block.

[0009] As a preferred technical solution of the present invention, one end of the first gear close to the first rack is designed to be planar and does not contact the teeth of the first rack.

[0010] As a preferred technical solution of the utility model, a sealing ring is sleeved on the head portion of the connecting inner tube.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model is provided with grooves at the upper and lower ends of the interior of the fixed tube to push the connecting tube and the connecting inner tube to slide inside the fixed tube. The contact between the first slope and the second slope causes the spring to be compressed and drives the positioning block to move inside the T-slot. Then, when the positioning block fits with the groove, the spring is released, so that the connecting tube is completely fixedly connected with the fixed tube. When maintenance is required, the retraction mechanism is driven to pull the pull rod to drive the first gear to rotate, so that the first rack and the positioning block move downward to compress the spring and then pull out the connecting tube, thereby improving the work efficiency of disassembly and assembly during maintenance.

[0013] 2. The utility model sets a planar design for the end of the first gear close to the first rack and does not contact the teeth of the first rack. When the connecting tube and the connecting inner tube are pushed to slide inside the fixed tube, the first rack will not drive the first gear to rotate. After the connecting tube is completely fixedly connected with the fixed tube, there is no need to reset the retraction mechanism, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the connecting pipe structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 A local enlarged view of point A;

[0017] Figure 4It is a cross-sectional view of the connecting pipe of the utility model.

[0018] In the figure: 1, heating furnace; 2, fixed pipe; 3, groove; 4, first slope; 5, connecting pipe; 6, connecting inner pipe; 7, T-slot; 8, spring; 9, blocking block; 10, square groove; 11, first rack; 12, second slope; 13, first gear; 14, fixed seat; 15, rotating shaft; 16, second gear; 17, second rack; 18, limiting block; 19, moving groove; 20, limiting groove; 21, pull rod; 22, sealing ring. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figures 1 to 4 As shown, the utility model provides a connecting pipeline for combustion heating equipment, including a heating furnace 1 and a connecting pipe 5, the upper part of the heating furnace 1 is fixedly connected with a fixed pipe 2, the upper part and the bottom of the inner surface of the fixed pipe 2 are provided with grooves 3, the connecting pipe 5 is fixedly connected with a connecting inner pipe 6 on the side close to the fixed pipe 2, the top and the bottom of the connecting inner pipe 6 are respectively provided with T-slots 7, two groups of springs 8 are fixedly connected inside the two groups of T-slots 7, the ends of the two groups of springs 8 away from the connecting inner pipe 6 are fixedly connected with a positioning block 9, the middle part of the positioning block 9 is provided with a square groove 10, and a retraction mechanism is arranged inside the T-slot 7.

[0021] By providing grooves 3 at the upper and lower ends of the interior of the fixed tube, the connecting tube 5 and the connecting inner tube 6 are pushed to slide toward the inside of the fixed tube 2. The contact between the first slope 4 and the second slope 12 compresses the spring 8 and drives the positioning block 9 to move toward the inside of the T-slot 7. When the positioning block 9 fits with the groove 3, the spring 8 is released, so that the connecting tube 5 is completely fixedly connected with the fixed tube 2. When maintenance is required, the retraction mechanism is driven to pull the pull rod 21 to drive the second gear 16 and the first gear 13 to rotate, so that the first rack 11 and the positioning block 9 move downward to compress the spring 8 and then pull out the connecting tube 5, thereby improving the efficiency of disassembly and assembly during maintenance.

[0022] The top surface of the locking block 9 is provided with a second slope 12 .

[0023] By providing the second slope 12 , when the connecting pipe 5 is pushed to move toward the inside of the fixed pipe 2 , the second slope 12 and the first slope 4 are in contact and squeezed with each other, so that the spring 8 is better compressed inwardly.

[0024] Among them, the retraction mechanism includes a limit groove 20 opened inside the T-slot 7, the limit groove 20 is internally slidably connected to a limit block 18, the top of the limit block 18 is fixedly connected to a second rack 17, a movable groove 19 is opened on the side connected to the inner tube 6, the end of the second rack 17 is overlapped with the inside of the movable groove 19, and the two ends of the second rack 17 are respectively fixedly connected to pull rods 21.

[0025] By providing the second rack 17 and the pull rod 21, when the fixed pipe 2 and the connecting pipe 5 need to be disassembled for maintenance, the pull rod 21 and the second rack 17 are pulled to move to the left, thereby driving the second gear 16 and the first gear 13 to rotate clockwise, and then the first gear 13 causes the first rack 11 meshing with it to move downward, and at the same time the positioning block 9 compresses the spring 8 to move downward, thereby facilitating the disassembly of the connecting pipe 5.

[0026] Among them, the retraction mechanism also includes a second gear 16 meshing with the second rack 17, the interior of the second gear 16 is fixedly connected to a rotating shaft 15, one end of the rotating shaft 15 is rotatably connected to the interior of the T-slot 7, and the other end of the rotating shaft 15 is rotatably connected to the interior of the fixed seat 14, and the outer side of one end of the rotating shaft 15 away from the second gear 16 is fixedly connected to the first gear 13, and one side of the first gear 13 can be meshed with a first rack 11 fixedly connected to the interior of the square groove 10.

[0027] By setting the retracting mechanism inside the T-slot 7, when the retracting mechanism is driven, the first gear 13 and the second gear 16 are driven to rotate, so that the first rack 11 and the positioning block 9 fixedly connected thereto are displaced downward, and when the fixed pipe 2 and the connecting pipe 5 need to be repaired and maintained, it is convenient to pull out the connecting pipe 5.

[0028] The first slopes 4 are provided at the upper and lower inner openings of the fixing tube 2 , and the cross section of the groove 3 matches the cross section of the positioning block 9 .

[0029] By providing a first slope 4 at the upper and lower inner openings of the fixed tube 2, and the slope of the first slope 4 is greater than the slope of the second slope 12, when the connecting tube 5 is pushed to move into the fixed tube 2, the second slope 12 and the first slope 4 contact and squeeze each other, so that the spring 8 is better compressed inwardly, and by setting the cross-section of the groove 3 to match the cross-section of the positioning block 9, when the connecting tube 5 is pushed to move into the fixed tube 2, when the positioning block 9 passes through the groove 3 area, the spring 8 rebounds and relaxes to the original state, and the positioning block 9 just fits into the groove 3, so that the connecting tube 5 is fixed to the fixed tube 2.

[0030] The end of the first gear 13 close to the first rack 11 is designed to be flat and does not contact the teeth of the first rack 11 .

[0031] By arranging the end of the first gear 13 close to the first rack 11 to be flat and not in contact with the teeth of the first rack 11, when the connecting tube 5 is pushed to move into the fixed tube 2, the first rack 11 will not drive the first gear 13 to rotate, thereby reducing unnecessary movement of the internal retraction mechanism.

[0032] The head portion connected to the inner tube 6 is sleeved with a sealing ring 22 .

[0033] By providing a head sleeve sealing ring 22 connected to the inner tube 6, the sealing performance of the fixed tube 2 and the connecting tube 5 is improved.

[0034] The working principle and use process of this utility model:

[0035] First, when the fixed tube 2 and the connecting tube 5 need maintenance, pull the pull rod 21 to make the second rack 17 and the limit block 18 connected to the bottom slide inside the limit groove 20, so that the second gear 16 rotates clockwise, and the first gear 13 rotates clockwise through the connection of the rotating shaft 15, so that the first rack 11 and the blocking block 9 fixedly connected to the first rack move downward together. When they are completely retracted into the interior of the T-slot 7, pull out the connecting tube 5 to complete the disassembly work. After the maintenance is completed, return the pull rod 21 to its original position, push the connecting tube 5 to move into the fixed tube 2, so that the second slope 12 and the first slope 4 contact and squeeze each other, so that the spring 8 is compressed inwardly, and when the blocking block 9 passes through the groove 3 area, the spring 8 rebounds and relaxes to its original state, and the blocking block 9 fits into the interior of the groove 3, so that the connecting tube 5 and the fixed tube 2 are fixed, and the assembly work is completed.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connecting pipe for combustion heating equipment, comprising a heating furnace (1) and a connecting pipe (5), wherein a fixed pipe (2) is fixedly connected to the upper part of the heating furnace (1), characterized in that: The upper part and the bottom part of the inner surface of the fixed tube (2) are both provided with grooves (3); the connecting tube (5) is fixedly connected to a connecting inner tube (6) on a side close to the fixed tube (2); the top and the bottom part of the connecting inner tube (6) are respectively provided with T-shaped grooves (7); two groups of springs (8) are fixedly connected inside the two groups of T-shaped grooves (7); the ends of the two groups of springs (8) away from the connecting inner tube (6) are fixedly connected to a positioning block (9); a square groove (10) is provided in the middle of the positioning block (9); and a retraction mechanism is provided inside the T-shaped groove (7).

2. A connecting pipe for combustion heating equipment according to claim 1, characterized in that: The top surface of the locking block (9) is provided with a second slope (12).

3. A connecting pipe for combustion heating equipment according to claim 1, characterized in that: The retracting mechanism comprises a limiting groove (20) provided inside the T-slot (7), the limiting groove (20) is internally slidably connected to a limiting block (18), the top of the limiting block (18) is fixedly connected to a second rack (17), a movable groove (19) is provided on the side of the connecting inner tube (6), the end of the second rack (17) is overlapped inside the movable groove (19), and the two ends of the second rack (17) are respectively fixedly connected to pull rods (21).

4. A connecting pipe for combustion heating equipment according to claim 3, characterized in that: The retracting mechanism further comprises a second gear (16) meshingly connected with a second rack (17); a rotating shaft (15) is fixedly connected inside the second gear (16); one end of the rotating shaft (15) is rotatably connected to the inside of the T-shaped slot (7); the other end of the rotating shaft (15) is rotatably connected to the inside of a fixed seat (14); a first gear (13) is fixedly connected to the outside of one end of the rotating shaft (15) away from the second gear (16); and one side of the first gear (13) can be meshedly provided with a first rack (11) fixedly connected to the inside of the square slot (10).

5. The connecting pipe for combustion heating equipment according to claim 1, characterized in that: The fixing tube (2) is provided with a first slope (4) at the upper and lower inner openings, and the cross section of the groove (3) matches the cross section of the positioning block (9).

6. A connecting pipe for combustion heating equipment according to claim 4, characterized in that: One end of the first gear (13) close to the first rack (11) is designed to be flat and does not contact the teeth of the first rack (11).

7. The connecting pipe for combustion heating equipment according to claim 1, characterized in that: The head of the connecting inner tube (6) is sleeved with a sealing ring (22).

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