Heat shield for scavenging pipe of low-speed diesel engine

Abstract

The heat shield comprises a heat shield body, a heat insulation layer, a nylon belt and a magnet, the heat insulation layer is arranged in the heat shield body, two fixing blocks are arranged at the left end of the heat shield body, the fixing blocks are connected with a movable cover, the right end of the nylon belt is fixed in the fixing blocks, and the right end of the nylon belt is connected with the movable cover. Four fixing pieces are arranged at the right end of the heat shield body, two fixing rods are arranged between every two fixing pieces, a connecting piece is arranged on the side face of the heat shield body, and a shifting rod is arranged in the connecting piece. According to the low-speed diesel engine scavenging pipe heat insulation cover, the connecting piece and the connecting belt are arranged, the clamping belt is arranged on the inner side of the connecting belt, the connecting belt is inserted into the empty groove, the clamping block is clamped with the clamping belt, the heat insulation cover is fixed to the scavenging pipe, then the shifting rod is shifted to enable the clamping block to be separated from the clamping belt, and the heat insulation cover can be unfolded; and the heat insulation cover can be more stably mounted on the scavenging pipe and can be used for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of heat insulation covers, in particular to a heat insulation cover for a scavenging pipe of a low-speed diesel engine. Background Art

[0002] During the process of marine diesel engine oil, fresh air is needed to squeeze the exhaust gas in the cylinder out of the scavenging port. This process is called scavenging. The scavenging port is connected to the scavenging treatment device through a scavenging pipe, so that the exhaust gas in the cylinder flows out from the scavenging port and flows into the scavenging treatment device through the scavenging pipe for treatment.

[0003] Since the temperature of the exhaust gas in the cylinder is relatively high, the temperature of the exhaust gas in the scavenging pipe is high during the scavenging process, which can easily cause damage to the surrounding parts of the scavenging system, especially at the connection between the scavenging pipe and the scavenging treatment device. In order to prevent damage to the surrounding parts of the scavenging pipe, the existing diesel engine will set a heat insulation cover at the connection of the scavenging pipe. The existing scavenging pipe heat insulation cover is generally wrapped around the scavenging pipe with Velcro. After long-term repeated use, the adhesion of the Velcro will decrease, making the heat insulation cover unstable on the scavenging pipe. The existing scavenging pipe heat insulation cover needs to be customized with a suitable length according to the length of the scavenging pipe when in use, and when a part of the heat insulation cover is damaged and needs to be replaced, the entire heat insulation cover needs to be plugged in and then replaced, which has a high cost of use.

[0004] Therefore, we propose a low-speed diesel engine scavenging pipe heat insulation cover to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a heat insulation cover for a scavenge pipe of a low-speed diesel engine, so as to solve the problems raised in the above-mentioned background technology that the adhesion of the Velcro on the heat insulation cover on the current market decreases after long-term use, making the heat insulation cover unstable to fix, requiring customization of the heat insulation cover of appropriate length according to the length of the scavenge pipe, and requiring replacement of the entire heat insulation cover when a part of the heat insulation cover is damaged.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-speed diesel engine scavenging pipe heat insulation cover, comprising a heat insulation cover body, a heat insulation layer, a nylon belt and a magnet, wherein the heat insulation cover body is provided with a heat insulation layer inside, the heat insulation cover body is provided with two fixed blocks at the left end, and the fixed blocks are connected to the movable cover, the right end of the nylon belt is fixed in the fixed block, the heat insulation cover body is provided with four fixings at the right end, and two fixing rods are provided between every two fixings, the heat insulation cover body is provided with a connecting piece on the side, and a lever is provided inside the connecting piece, and the heat insulation cover body is provided with a connecting belt on the side.

[0007] Preferably, the left end of the heat shield body is stepped, and the outer diameter of the left end of the heat shield body is equal to the inner diameter of the right end of the heat shield body.

[0008] Preferably, the left end of the movable cover is movably connected to the fixed block, and the left end inside the movable cover is set to be serrated, a gap is set between the bottom of the movable cover and the top of the fixed block, and the thickness of the nylon belt is equal to the height of the gap between the movable cover and the fixed block, and the two fixed blocks are symmetrically distributed up and down at the left end of the heat insulation cover body.

[0009] Preferably, the four fixing members are vertically symmetrically distributed at the right end of the heat shield body, and the fixing rods are arranged side by side between two fixing members.

[0010] Preferably, the lever is located inside the empty slot, and a clamping block is fixed on the right side of the lever, a clamping belt is fixed on the inner side of the connecting belt, and the thickness of the connecting belt is equal to the height of the empty slot.

[0011] Preferably, a connecting block is fixed on the left side of the lever, and the connecting block is made of iron, and a magnet is arranged inside the connecting member below the connecting block.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the low-speed diesel engine scavenging pipe heat insulation cover,

[0013] (1) A connecting piece and a connecting belt are provided, and a clamping belt is provided inside the connecting belt. The heat shield is fixed on the scavenging pipe by inserting the connecting belt into the empty groove and clamping the clamping block with the clamping belt. Then, the clamping block is separated from the clamping belt by pulling the lever, and the heat shield can be unfolded, so that the heat shield can be more stably installed on the scavenging pipe and used for a long time.

[0014] (2) A nylon belt, a fixing block and a fixing rod are provided, and the fixing rod is located on the right side of the heat insulation cover body, and the fixing block is located on the left side of the heat insulation cover body, and the nylon belt is fixed in the fixing block. The nylon belt can be passed through the fixing rods, and the excess nylon belt can be inserted into the gap between the fixing block and the movable cover, and the nylon belt can be fixed by the movable cover, so that the two heat insulation cover bodies can be fixedly connected, thereby splicing a heat insulation cover of a suitable length and replacing a certain section of the heat insulation cover separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the left side structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the right side structure of the utility model;

[0019] Figure 5 For this utility model Figure 1 Schematic diagram of the structure at A in the middle;

[0020] Figure 6 For this utility model Figure 3 Schematic diagram of the structure at B in the middle;

[0021] Figure 7 For this utility model Figure 3 Schematic diagram of the structure at C in the middle;

[0022] Figure 8 For this utility model Figure 3 Schematic diagram of the internal structure at point C in the middle.

[0023] In the figure: 1. heat shield body; 2. heat insulation layer; 3. fixing block; 301. nylon belt; 4. movable cover; 5. fixing piece; 6. fixing rod; 7. connecting piece; 701. empty slot; 702. magnet; 8. lever; 801. clamping block; 802. connecting block; 9. connecting belt; 901. clamping belt. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-8 The utility model provides a technical solution: a low-speed diesel engine scavenging pipe heat insulation cover, including a heat insulation cover body 1, a heat insulation layer 2, a nylon belt 301 and a magnet 702, the heat insulation cover body 1 is provided with a heat insulation layer 2, the heat insulation cover body 1 is provided with two fixing blocks 3 at the left end, and the fixing block 3 is connected to a movable cover 4, the right end of the nylon belt 301 is fixed in the fixing block 3, the right end of the heat insulation cover body 1 is provided with four fixing members 5, and two fixing rods 6 are provided between every two fixing members 5, a connecting member 7 is provided on the side of the heat insulation cover body 1, and a lever 8 is provided inside the connecting member 7, and a connecting belt 9 is provided on the side of the heat insulation cover body 1.

[0026] The left end of the heat shield body 1 is stepped, and the outer diameter of the left end of the heat shield body 1 is equal to the inner diameter of the right end of the heat shield body 1. By inserting the left end of the heat shield body 1 into the right end of another heat shield body 1, a heat shield of appropriate length can be spliced ​​according to the length of the scavenging pipe.

[0027] The left end of the movable cover 4 is movably connected to the fixed block 3, and the left end inside the movable cover 4 is set to be serrated, a gap is set between the bottom of the movable cover 4 and the top of the fixed block 3, and the thickness of the nylon belt 301 is equal to the height of the gap between the movable cover 4 and the fixed block 3. The two fixed blocks 3 are symmetrically distributed at the left end of the heat insulation cover body 1. The nylon belt 301 can be inserted into the gap between the movable cover 4 and the fixed block 3, and then the movable cover 4 is pressed down, and the nylon belt 301 is fixed between the movable cover 4 and the fixed block 3 through the serrations at the left end of the movable cover 4, which is convenient for fixing the nylon belt 301.

[0028] The four fixing parts 5 are symmetrically distributed at the right end of the heat insulation cover body 1, and the fixing rods 6 are arranged side by side between the two fixing parts 5. The two heat insulation cover bodies 1 can be conveniently connected by passing the nylon belt 301 of the other heat insulation cover through the bottom of the two fixing rods 6, passing over the top of the left fixing rod 6, and then passing under the right fixing rod 6.

[0029] The lever 8 is located at the inner side of the empty slot 701, and a clamping block 801 is fixed on the right side of the lever 8, a clamping belt 901 is fixed on the inner side of the connecting belt 9, and the thickness of the connecting belt 9 is equal to the height of the empty slot 701. The connecting belt 9 can be inserted into the empty slot 701, and the clamping of the clamping belt 901 and the clamping block 801 facilitates the heat insulation cover body 1 to be stably fixed on the scavenging pipe.

[0030] A connecting block 802 is fixed on the left side of the lever 8, and the material of the connecting block 802 is iron. A magnet 702 is arranged inside the connector 7 below the connecting block 802. The connecting block 802 can be adsorbed by the magnet 702, so that the clamping block 801 is fixed and clamped with the clamping belt 901, which is convenient for disassembly of the heat insulation cover.

[0031] Working principle: When using the heat shield for the scavenging pipe of a low-speed diesel engine, firstly, the heat shield body 1 is sleeved on the scavenging pipe, and then the connecting belt 9 is inserted into the empty slot 701 of the connecting piece 7. During the process, through the activity of the lever 8, when the clamping block 801 reaches the highest point of the clamping belt 901, the connecting block 802 leaves the magnet 702. When the clamping block 801 reaches the lowest point of the clamping belt 901, the magnet 702 adsorbs the connecting block 802, so that when the clamping belt 901 moves in the empty slot 701, the clamping block 801 and the connecting block 802 swing around the lever 8, and then the connecting belt 9 is tightened, and the heat shield body 1 is fixed on the scavenging pipe through the clamping of the clamping belt 901 and the clamping block 801. Then, another heat shield body 1 is sleeved on the scavenging pipe, and the left end of the heat shield body 1 is inserted into the right end of the previous heat shield body 1, and the heat shield The fixed block 3 at the left end of the body 1 is aligned with the fixed rod 6 at the right end of the previous heat insulation cover body 1, and then the nylon belt 301 is passed through the bottom of the two fixed rods 6, and then the nylon belt 301 is passed over the top of the left fixed rod 6 and passed out from the bottom of the right fixed rod 6, and then the nylon belt 301 is passed through the gap between the movable cover 4 and the fixed block 3 and tightened, and then the movable cover 4 is pressed downward, and the nylon belt 301 is fixed by extrusion, so that the two heat insulation cover bodies 1 are spliced, and then the above steps of fixing the heat insulation cover body 1 are repeated to fix the heat insulation cover body 1 on the scavenging pipe, and finally the above steps are repeated to splice a heat insulation cover of a suitable length and fix it on the scavenging pipe, thus completing the use of the low-speed diesel engine scavenging pipe heat insulation cover, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-speed diesel engine scavenging pipe heat insulation cover, comprising a heat insulation cover body (1), a heat insulation layer (2), a nylon belt (301) and a magnet (702), characterized in that: A heat insulation layer (2) is arranged inside the heat insulation cover body (1); two fixing blocks (3) are arranged at the left end of the heat insulation cover body (1), and the fixing blocks (3) are connected to the movable cover (4); the right end of the nylon belt (301) is fixed in the fixing block (3); four fixing members (5) are arranged at the right end of the heat insulation cover body (1), and two fixing rods (6) are arranged between every two fixing members (5); a connecting member (7) is arranged on the side of the heat insulation cover body (1), and a lever (8) is arranged inside the connecting member (7); and a connecting belt (9) is arranged on the side of the heat insulation cover body (1).

2. A low-speed diesel engine scavenging pipe heat insulation cover according to claim 1, characterized in that: The left end of the heat shield body (1) is stepped, and the outer diameter of the left end of the heat shield body (1) is equal to the inner diameter of the right end of the heat shield body (1).

3. A low-speed diesel engine scavenging pipe heat insulation cover according to claim 1, characterized in that: The left end of the movable cover (4) is movably connected to the fixed block (3), and the left end inside the movable cover (4) is arranged in a sawtooth shape. A gap is arranged between the bottom of the movable cover (4) and the top of the fixed block (3), and the thickness of the nylon belt (301) is equal to the height of the gap between the movable cover (4) and the fixed block (3). The two fixed blocks (3) are symmetrically distributed at the left end of the heat insulation cover body (1) in an upper and lower manner.

4. A low-speed diesel engine scavenging pipe heat insulation cover according to claim 1, characterized in that: The four fixing members (5) are symmetrically distributed up and down at the right end of the heat shield body (1), and the fixing rod (6) is arranged side by side between two fixing members (5).

5. A low-speed diesel engine scavenging pipe heat insulation cover according to claim 1, characterized in that: The lever (8) is located inside the empty slot (701), and a clamping block (801) is fixed on the right side of the lever (8). A clamping belt (901) is fixed inside the connecting belt (9), and the thickness of the connecting belt (9) is equal to the height of the empty slot (701).

6. A low-speed diesel engine scavenging pipe heat insulation cover according to claim 1, characterized in that: A connecting block (802) is fixed on the left side of the lever (8), and the connecting block (802) is made of iron. A magnet (702) is arranged inside the connecting member (7) below the connecting block (802).

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