Self-locking boiler door

Abstract

The utility model discloses a self-locking boiler door which comprises a boiler body, the outer portion of the boiler body is rotationally connected with a door body, a first sliding groove is formed in the door body, and a square groove is formed in the boiler body; and the self-locking assembly comprises a sliding block, the sliding block is connected to the interior of the first sliding groove in a sliding mode, and the first sliding groove and the square groove are arranged in a radian mode, so that when the door body is closed, the square groove coincides with the first sliding groove along the radian line. According to the device, firstly, the device is placed at a proper position, when a door body is closed, a sliding block is clamped in a square groove, meanwhile, a locking block is clamped in a round hole and extrudes two trapezoidal clamping blocks, the trapezoidal clamping blocks contract along the interior of a second sliding groove after being extruded, and when the trapezoidal clamping blocks slide to the right sides of the trapezoidal clamping blocks, the door body is closed. And through the elastic force of the reset spring, the two trapezoidal clamping blocks lock the locking block, and the self-locking effect on the door body is synchronously achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler doors, in particular to a self-locking boiler door. Background Art

[0002] In order to meet the regular maintenance of the boiler and the cleaning of the burner, two small doors are opened in front of the smoke box. Insulation materials are installed on the inside of the smoke box and the smoke box door (usually about 50mm due to structural limitations). Since the front smoke box is subject to high-speed erosion of high-temperature flue gas, steel mesh or stainless steel plate is installed on the surface of the insulation material for protection. At the same time, the smoke box door needs to be fastened with more bolts and nuts to ensure sealing. The burner is fixed on the steel plate.

[0003] A boiler furnace door with publication number CN210219845U includes: a fixed plate and a mounting plate parallel to the fixed plate, a space is left between the mounting plate and the fixed plate, the fixed plate and the mounting plate are respectively provided with a first mounting hole and a second mounting hole arranged coaxially, the top end, the bottom end and the left and right ends of the fixed plate and the mounting plate are respectively connected by hinge assemblies, one end of the hinge assembly is fixedly connected to the fixed plate, and the other end is detachably connected to the mounting plate, the mounting plate is rotated in the vertical direction by the hinge assembly at the top or bottom end between the fixed plate and the mounting plate, and the mounting plate is rotated in the horizontal direction by the hinge assembly at the left or right end between the fixed plate and the mounting plate. The utility model has the advantages of being able to realize the easy opening and closing of the entire furnace door, while ensuring the fixation, locking and sealing of the furnace door after closing, which is convenient for the installation and commissioning of the burner and the subsequent regular inspection and maintenance of the boiler. However, the above-mentioned boiler door does not have a self-locking structure, so when it is used, it needs to be used with a separate lock body, so that it needs to be manually locked when closing the furnace door. The process is cumbersome and inconvenient. Therefore, it is necessary to provide a new self-locking boiler door to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide a self-locking boiler door, which has the advantages of quick self-locking and quick unlocking, and solves the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-locking boiler furnace door, comprising: a furnace body, the exterior of the furnace body is rotatably connected to the door body, the interior of the door body is provided with a first slide groove, and the interior of the furnace body is provided with a square groove; a self-locking component, the self-locking component comprises a sliding block, the sliding block is slidably connected to the interior of the first slide groove, the first slide groove and the square groove are provided with an arc setting, so that when the door body is closed, the square groove coincides with the first slide groove along the arc line, first the device is placed in a suitable position, when the door body is closed, the sliding block is clamped in the interior of the square groove, and the locking block is clamped in the interior of the round hole, and the locking block squeezes the two The trapezoidal card block, when the trapezoidal card block is squeezed, shrinks along the inside of the second slide groove, and when the trapezoidal card block slides to the right side of the trapezoidal card block, the elastic force of the reset spring makes the two trapezoidal card blocks lock the locking block, and the self-locking effect of the door body is simultaneously achieved. When it is necessary to unlock and open the door body, the trigger rod is pressed and bottomed out, so that the sliding block continues to slide at the bottom of the square groove, and the trapezoidal card block slides to the left side of the unlocking block. At this time, the door body is pulled, and the unlocking block is limited by the trapezoidal card block, so that the unlocking block approaches the locking block along the outside of the fixed rod until the unlocking block and the locking block are fitted, so that the trapezoidal card block slides and falls off along the outside of the unlocking block and the locking block, completing the quick unlocking.

[0006] Preferably, the self-locking component further comprises a circular hole, which is opened inside the sliding block, and two trapezoidal clamping blocks are slidably connected inside the sliding block, and the two trapezoidal clamping blocks extend into the inside of the circular hole.

[0007] Preferably, a fixing rod is fixedly connected to the inside of the square groove, and a locking block is fixedly connected to the right end of the fixing rod. When the door body is closed close to the furnace body, the locking block will be stuck in the inside of the circular hole, and the locking block will slide to the right side of the trapezoidal blocking block to lock the door body.

[0008] Preferably, two second sliding grooves are oppositely opened inside the sliding block, and the insides of the two second sliding grooves are fixedly connected with return springs, and the return springs are fixedly connected to the trapezoidal clamping block, and the trapezoidal clamping block can slide repeatedly along the inside of the second sliding grooves.

[0009] Preferably, the outside of the fixed rod is slidably connected to an unlocking block, and the unlocking block and the locking block have the same shape structure. The sliding block is pressed to make the trapezoidal card block slide to the left side of the unlocking block, and then the door body is pulled to make the unlocking block slide along the outside of the fixed rod and fit against the locking block. Finally, the unlocking block is squeezed to make the two trapezoidal card blocks shrink inside the second slide groove to complete the unlocking.

[0010] Preferably, the inside of the square groove is fixedly connected with a limit spring, the outside of the sliding block is fixedly connected with a trigger rod, the trigger rod extends to the outside of the door body, and the limit spring is sleeved on the outside of the fixed rod. The trigger rod can be used to facilitate the squeezing of the sliding block, and the limit spring can make the unlocking block slide to fit the locking block, and it can be quickly reset when the unlocking is completed. The elastic force of the limit spring is smaller than the elastic force of the reset spring.

[0011] The bottom of the furnace body is fixedly connected with four fixing columns, and the four fixing columns are all made of rubber.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model first places the device in a suitable position. When the door body is closed, the sliding block is stuck in the inside of the square groove, and the locking block is stuck in the inside of the round hole. At the same time, the locking block squeezes the two trapezoidal blocks. When the trapezoidal blocks are squeezed, they shrink along the inside of the second slide groove. When the trapezoidal blocks slide to the right side of the trapezoidal blocks, the elastic force of the reset spring causes the two trapezoidal blocks to lock the locking block, thereby achieving a self-locking effect on the door body.

[0014] 2. According to the utility model, when it is necessary to unlock and open the door body, the trigger rod is pressed and touches the bottom, so that the sliding block continues to slide at the bottom of the square groove, and the trapezoidal card block slides to the left side of the unlocking block. At this time, the door body is pulled, and the unlocking block is limited by the trapezoidal card block, so that the unlocking block approaches the locking block along the outside of the fixed rod until the unlocking block and the locking block are fitted, so that the trapezoidal card block slides and falls off along the outside of the unlocking block and the locking block, completing the quick unlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a self-locking boiler door of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a self-locking boiler door of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of a self-locking boiler door of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal structure of the heat absorbing plate of the utility model.

[0019] In the figure: 1. furnace body; 2. door body; 3. fixed column; 4. first slide groove; 5. square groove; 6. sliding block; 7. fixed rod; 8. locking block; 9. unlocking block; 10. limit spring; 11. round hole; 12. second slide groove; 13. reset spring; 14. trapezoidal block; 15. trigger rod. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figures 1 to 4 The utility model provides a technical solution: a self-locking boiler furnace door, comprising: a furnace body 1, the outside of the furnace body 1 is rotatably connected with a door body 2, the interior of the door body 2 is provided with a first slide groove 4, and the interior of the furnace body 1 is provided with a square groove 5; a self-locking component, the self-locking component comprises a sliding block 6, the sliding block 6 is slidably connected to the inside of the first slide groove 4, the first slide groove 4 and the square groove 5 are provided with an arc setting, so that when the door body 2 is closed, the square groove 5 coincides with the first slide groove 4 along the arc line, first place the device in a suitable position, when the door body 2 is closed, the sliding block 6 is clamped in the inside of the square groove 5, and the locking block 8 is clamped in the inside of the round hole 11, and the locking block 8 squeezes the two trapezoidal blocks 14, when the trapezoidal blocks 14 are squeezed After being pressed, it contracts along the inside of the second slide groove 12. When the trapezoidal card block 14 slides to the right side of the trapezoidal card block 14, the elastic force of the return spring 13 makes the two trapezoidal card blocks 14 lock the locking block 8, and simultaneously realize the self-locking effect of the door body 2. When it is necessary to unlock and open the door body 2, the trigger rod 15 is pressed and touches the bottom, so that the sliding block 6 continues to slide at the bottom of the square groove 5, and the trapezoidal card block 14 slides to the left side of the unlocking block 9. At this time, the door body 2 is pulled, and the unlocking block 9 is limited by the trapezoidal card block 14, so that the unlocking block 9 is close to the locking block 8 along the outside of the fixing rod 7 until the unlocking block 9 and the locking block 8 are fitted, so that the trapezoidal card block 14 slides and falls off along the outside of the unlocking block 9 and the locking block 8, completing the quick unlocking.

[0022] The self-locking assembly further includes a circular hole 11 , which is opened inside the sliding block 6 , and two trapezoidal blocks 14 are slidably connected inside the sliding block 6 , and the two trapezoidal blocks 14 extend into the circular hole 11 .

[0023] A fixing rod 7 is fixedly connected to the inside of the square groove 5, and a locking block 8 is fixedly connected to the right end of the fixing rod 7. When the door body 2 is closed close to the furnace body 1, the locking block 8 will be stuck in the inside of the circular hole 11, and at the same time, the locking block 8 will slide to the right side of the trapezoidal blocking block 14 to lock the door body 2.

[0024] Two second slide grooves 12 are oppositely formed inside the sliding block 6 , and return springs 13 are fixedly connected inside the two second slide grooves 12 . The return springs 13 are fixedly connected to the trapezoidal block 14 , and the trapezoidal block 14 can slide repeatedly along the inside of the second slide grooves 12 .

[0025] Four fixing columns 3 are fixedly connected to the bottom of the furnace body 1, and the four fixing columns 3 are all made of rubber.

[0026] When the self-locking boiler door is in use, the device is first placed in a suitable position. When the door body 2 is closed, the sliding block 6 is clamped in the square groove 5, and the locking block 8 is clamped in the round hole 11. At the same time, the locking block 8 squeezes the two trapezoidal blocks 14. When the trapezoidal blocks 14 are squeezed, they shrink along the inside of the second slide groove 12. When the trapezoidal blocks 14 slide to the right side of the trapezoidal blocks 14, the elastic force of the reset spring 13 causes the two trapezoidal blocks 14 to lock the locking block 8, thereby achieving the self-locking effect of the door body 2.

[0027] See also Figures 1 to 4 The utility model provides a technical solution: a self-locking boiler furnace door, the outside of the fixed rod 7 is slidably connected with an unlocking block 9, the unlocking block 9 and the locking block 8 are of the same shape structure, by pressing the sliding block 6 to make the trapezoidal block 14 slide to the left side of the unlocking block 9, and then pulling the door body 2 to make the unlocking block 9 slide along the outside of the fixed rod 7 and fit the locking block 8, and finally by squeezing the unlocking block 9, the two trapezoidal blocks 14 are contracted inside the second slide groove 12 to complete the unlocking.

[0028] The inside of the square groove 5 is fixedly connected with a limit spring 10, and the outside of the sliding block 6 is fixedly connected with a trigger rod 15. The trigger rod 15 extends to the outside of the door body 2. The limit spring 10 is sleeved on the outside of the fixed rod 7. The trigger rod 15 can facilitate the squeezing of the sliding block 6. The limit spring 10 can make the unlocking block 9 slide to fit the locking block 8 and quickly reset when the unlocking is completed. The elastic force of the limit spring 10 is smaller than the elastic force of the reset spring 13.

[0029] When the self-locking boiler door is in use, when it is necessary to unlock and open the door body 2, the trigger rod 15 is pressed and touches the bottom, so that the sliding block 6 continues to slide at the bottom of the square groove 5, and the trapezoidal block 14 slides to the left side of the unlocking block 9. At this time, the door body 2 is pulled, and the trapezoidal block 14 is limited, so that the unlocking block 9 is moved toward the locking block 8 along the outside of the fixing rod 7 until the unlocking block 9 and the locking block 8 are fitted, so that the trapezoidal block 14 slides and falls off along the outside of the unlocking block 9 and the locking block 8, completing the quick unlocking.

[0030] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0031] 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 self-locking boiler door, characterized in that: include: A furnace body (1), the outside of the furnace body (1) is rotatably connected to a door body (2), the inside of the door body (2) is provided with a first sliding groove (4), and the inside of the furnace body (1) is provided with a square groove (5); A self-locking component, comprising a sliding block (6), wherein the sliding block (6) is slidably connected to the inside of a first sliding groove (4).

2. The self-locking boiler door according to claim 1, characterized in that: The self-locking component further comprises a circular hole (11), wherein the circular hole (11) is opened inside the sliding block (6), and two trapezoidal clamping blocks (14) are slidably connected inside the sliding block (6).

3. The self-locking boiler door according to claim 1, characterized in that: A fixing rod (7) is fixedly connected inside the square groove (5), and a locking block (8) is fixedly connected to the right end of the fixing rod (7).

4. The self-locking boiler door according to claim 1, characterized in that: Two second sliding grooves (12) are arranged opposite to each other inside the sliding block (6), and return springs (13) are fixedly connected inside the two second sliding grooves (12).

5. The self-locking boiler door according to claim 3 is characterized in that: An unlocking block (9) is slidably connected to the outside of the fixing rod (7), and the unlocking block (9) and the locking block (8) have the same shape structure.

6. The self-locking boiler door according to claim 1, characterized in that: The interior of the square groove (5) is fixedly connected to a limit spring (10), and the exterior of the sliding block (6) is fixedly connected to a trigger rod (15), and the trigger rod (15) extends to the exterior of the door body (2).

7. The self-locking boiler door according to claim 1, characterized in that: Four fixing columns (3) are fixedly connected to the bottom of the furnace body (1), and the four fixing columns (3) are all made of rubber material.

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