Barbecue oven flue butt joint locking structure

Abstract

The utility model provides a butt-joint locking structure for a flue of a barbecue oven, which belongs to the technical field of flue locking components and comprises two holding clamps used for clamping two sides of the flue, adjacent ends of the two holding clamps are connected through an elastic metal piece, and the other adjacent ends of the two holding clamps are provided with locking seats. The two locking seats are connected through a locking screw rod used for driving the two locking seats to be mutually folded, the locking screw rod is sleeved with a limiting sleeve connected to the outer walls of the locking seats in a clamped mode, and after a limiting clamping piece is connected to the end of the limiting sleeve in a clamped mode, the limiting clamping piece is screwed; the locking seats in threaded connection with the locking screws drive the ends of the corresponding embracing clamps to tighten and move, so that the butt joint position of the two flues is locked, the progress of the joint position of the smoke exhaust pipeline is guaranteed, the sealing performance of the smoke exhaust pipeline is improved, the distance between the two embracing clamps is adjusted according to the pipe diameter of the butt joint flues, and the butt joint position of the two flues is adjusted. Therefore, the device is suitable for locking and butting flues of different specifications.

Description

Technical Field

[0001] This utility model relates to the technical field of flue locking components, specifically a barbecue grill flue docking and locking structure. Background Technology

[0002] A barbecue grill is a tool for grilling meat using charcoal or other materials. Currently, there are charcoal barbecue grills, infrared electric barbecue grills, liquefied gas barbecue grills, and dual-purpose charcoal and gas barbecue grills. During the use of a barbecue grill, a large amount of smoke is generated. Therefore, it is necessary to exhaust the smoke to the outside in a timely manner through a smoke exhaust pipe. Since the barbecue grill itself has a relatively short pipe, it needs to be connected to the smoke exhaust pipe to ensure that the smoke is discharged to the outside.

[0003] A related technology (publication number: CN213015192U) discloses a flue connection clip. The disclosed technical solution is that when using this utility model to connect the upper flue and the lower flue, it is convenient to fill polymer mortar between this utility model and the upper flue, and between this utility model and the lower flue. Moreover, the connection between this utility model and the upper flue, and between this utility model and the lower flue is tight, and it is not easy for smoke to leak.

[0004] The above-disclosed technical solutions reveal the following problems: Currently, most flues on the market involve embedding the barbecue grill's pipe under the tabletop and connecting it to the exhaust pipe. The pipe connection is then secured using a locking mechanism with a snap-fit ​​design. However, this type of locking mechanism can damage the outer wall of the pipe during the snap-fit ​​process. Furthermore, it cannot connect and lock properly when the pipe specifications are incompatible, resulting in low applicability. Therefore, we propose a novel barbecue grill flue connection and locking structure.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background section of this application, and therefore may include prior art information that does not constitute prior art information known to those skilled in the art. Utility Model Content

[0006] This utility model aims to solve at least one of the technical problems existing in the prior art or related technologies. To address the problem of locking the connection of barbecue grill flues in the prior art, this utility model provides a locking structure for the connection of barbecue grill flues. This locking structure, combined with an adjustable locking range structure, achieves adaptability to different types of pipes. The specific technical solution is as follows:

[0007] A barbecue grill flue connection locking structure includes clamps for engaging both sides of the flue. The adjacent ends of two clamps are connected by an elastic metal part, and the other adjacent ends of the two clamps are each provided with a locking seat. The two locking seats are connected by a locking screw for driving the two locking seats to close together. A limiting sleeve that engages with the outer wall of the locking seat is sleeved on the outside of the locking screw. The clamps are provided with a leveling component for adjusting the horizontality of the flue connection.

[0008] In the above technical solution, the leveling component includes a base fixedly installed on the top of the clamp, a connecting lug fixedly installed on the circumferential outer wall of the base, and a leveling screw threadedly connected to the inner cavity of the connecting lug.

[0009] The top of the leveling screw is conical.

[0010] The leveling screw has a rotating groove at the end away from the conical end.

[0011] The top of the base is provided with a groove, and a gasket is embedded in the inner cavity of the groove.

[0012] The locking seat is embedded in the inner cavity of the card holder, and the card holder is fixedly installed on the outer wall of the clamp.

[0013] The inner wall of the clamp is provided with a protective pad.

[0014] A buffer element is provided through the inner wall of the clamp near the bayonet opening. An outer cylinder opposite to the buffer element is provided on the outer wall of the clamp. An elastic element is provided between the end of the buffer element extending out of the clamp and the inner wall of the outer cylinder.

[0015] The buffer and the elastic element are connected by a slider, which is slidably disposed on the inner wall of the outer cylinder.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the grill exhaust duct docking and locking structure:

[0017] 1. When locking the flue joint using two clamps, the elastic metal parts open the clamp slots at a certain angle. The clamps are then engaged with the outside of the flue joint. A limiting device then drives the locking screw through the inner cavity of the limiting sleeve and the corresponding locking seat, connecting it threadedly to the other locking seat, thus locking the two flue joints. This ensures the smooth connection of the exhaust pipes and improves their sealing. The distance between the two clamps can be adjusted according to the diameter of the connected flue, making it suitable for locking and connecting flues of different specifications.

[0018] 2. After locking the flue connection, when fixing the clamp, first place the conical tips of the four leveling screws against the bottom of the barbecue grill table. Then, turn each leveling screw in turn according to the position of the clamp to adjust the position of the two closed clamps up and down, ensuring the levelness of the flue connection, thus avoiding the flue bending and ensuring the effect of flue gas emission.

[0019] Third, by increasing the friction between the base and the contact surface through the gasket, the stability of the base position is ensured, thereby ensuring the stability of the clamp installation position.

[0020] Fourth, the conical leveling screw makes the operation of adjusting the closing clamp process more convenient and reduces the friction between the leveling screw and the contact surface. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the installation position of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a barbecue grill flue connection and locking structure according to the present invention. Figure I ;

[0023] Figure 3 This is a schematic diagram of the structure of a barbecue grill flue connection and locking structure according to the present invention. Figure II ;

[0024] Figure 4 This is an exploded view of the structure of a barbecue grill flue connection and locking structure according to the present invention;

[0025] Figure 5 for Figure 4 Enlarged view of a portion at point A;

[0026] in, Figures 1 to 5 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1-clamp, 2-base, 3-elastic metal part, 4-locking seat, 5-locking screw, 6-leveling screw, 7-washer, 8-connecting ear, 9-card seat, 10-protective pad, 13-rotating slot, 14-buffer, 15-outer cylinder, 16-groove, 17-elastic part, 18-slider, 19-limiting sleeve, 20-limiting clip. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] The following are specific implementation cases and appendices. Figure 1-5 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0029] Example 1

[0030] A barbecue grill flue connection and locking structure includes clamps 1 for engaging both sides of the flue, with adjacent ends of the two clamps 1 connected by an elastic metal piece 3. The two clamps 1 are arc-shaped, and the arc-shaped elastic metal piece 3 fits against the circumferential outer wall of one of the relatively close ends of the two arc-shaped clamps 1. The arc-shaped elastic metal piece 3 is simultaneously connected to both clamps 1 by a fixing member, thus connecting adjacent sides of the two clamps 1. The size of the locking joint between the two clamps 1 can be adjusted via the elastic metal piece 3.

[0031] Each of the two clamps 1 has a locking seat 4 at its other end. The two locking seats 4 are connected by a locking screw 5 for driving the two locking seats 4 to close together. A limiting sleeve 19 is sleeved on the outside of the locking screw 5 and is engaged with the outer wall of the locking seat 4. A limiting clip 20 is provided at the end of the locking screw 5 that extends out of the limiting sleeve 19.

[0032] Two arc-shaped clamps 1 are fixedly connected at one end by an elastic metal part 3, and locking seats 4 are fixedly installed at the other end of both arc-shaped clamps 1. One locking seat 4 has a threaded through hole with a diameter larger than that of the locking screw 5 in the transverse direction, and the other locking seat 4 has a threaded through hole in the transverse direction that connects to the locking screw 5. The limiting sleeve 19 is a hollow cylinder, which allows the limiting sleeve 19 to be movably sleeved on the outside of the locking screw 5, allowing the limiting sleeve 19 to rotate outside the locking screw 5. The limiting sleeve 19 rotates against the outer wall of the corresponding locking seat 4, and the transverse through hole of the limiting sleeve 19 is connected to the transverse through hole of the locking seat 4.

[0033] The locking screw 5 is used to drive the two locking seats 4 to reduce the limiting inner diameter of the two clamps 1. This means that after the locking screw 5 is threadedly connected to the two locking seats 4, the locking screw 5 is threaded to one corresponding locking seat 4, while the unthreaded portion of the outer wall of the locking screw 5 is located within the inner cavity of the other locking seat 4. At this time, a limiting sleeve fitted around the outside of the locking screw 5 is engaged with the surface of the locking seat 4 that is not threaded to the locking screw 5. This allows the locking screw 5 to pass through the inner cavity of the limiting sleeve 9 on one clamp 1 and the inner cavity of the locking seat 4, and to be threadedly connected to the locking seat 4 on the other clamp 1. The limiting catch 20 at the end of the locking screw 5 engages with one side of the limiting sleeve 19. Simultaneously, the limiting sleeve 19 fits against the outer wall of the adjacent locking seat 4. The clamp 1 is equipped with a leveling component for adjusting the horizontality of the flue connection point.

[0034] When locking the flue joint using two clamps, the elastic metal part 3 opens the two clamps 1 at a certain angle, and then the two clamps 1 are engaged with the outside of the flue joint. Then, the limiting clip 20 drives the locking screw 5 to pass through the inner cavity of the limiting sleeve 19 and the inner cavity of the corresponding locking seat 4, and connects to the other locking seat 4 by thread. Then, the limiting clip 20 is engaged with the end of the limiting sleeve 19, and the limiting sleeve 19 is engaged with the surface of the adjacent locking seat 4. Then, the limiting clip 20 is turned, causing the locking seat 4 threaded with the locking screw 5 to move and tighten the end of the corresponding clamp 1, thereby locking the two flue joints. This ensures the progress of the flue pipe connection and improves the sealing of the flue pipe. The distance between the two clamps 1 can be adjusted according to the diameter of the flue pipe, thus making it suitable for locking and connecting flues of different specifications.

[0035] The leveling component includes a base 2 fixedly installed on the top of the clamp 1. A connecting lug 8 is fixedly installed on the outer circumferential wall of the base 2, and a leveling screw 6 is threadedly connected to the inner cavity of the connecting lug 8. Two connecting lugs 8 are symmetrically fixedly installed on the outer circumferential wall of each conical clamp 1. A threaded sleeve is longitudinally embedded in the inner cavity of the connecting lug 8, and the leveling screw 6 is threadedly connected to the threaded sleeve, so that the leveling screw 6 is in a position perpendicular to the base 2.

[0036] After locking the flue connection, when fixing the clamp 1, first place the conical tips of the four leveling screws 6 against the bottom of the barbecue grill table, and then turn each leveling screw 6 in sequence according to the position of the clamp 1. Adjust the positions of the two closed clamps 1 vertically to ensure the levelness of the flue connection, thereby preventing the flue from bending and ensuring the effect of flue gas emission.

[0037] The top of the leveling screw 6 is conical. The conical shape of the leveling screw 6 makes the operation of adjusting the closed clamp 1 more convenient and reduces the friction between the leveling screw 6 and the contact surface.

[0038] It is worth noting that a rotating groove 13 is provided at the end of the leveling screw 6 away from the conical end. The bottom end of the leveling screw 6 has an internal hexagonal rotating groove 13, which allows the leveling screw 6 to be rotated by the internal hexagonal operation, thus facilitating the operation process for relevant personnel.

[0039] In addition, a groove 16 is provided on the top of the abutment base 2, and a gasket 7 is embedded in the inner cavity of the groove 16. The gasket 7 increases the friction between the abutment base 2 and the contact surface, thereby ensuring the stability of the position of the abutment base 2, and thus ensuring the stability of the installation position of the clamp 1.

[0040] In addition, the locking seat 4 is embedded in the inner cavity of the card holder 9, and the card holder 9 is fixedly installed on the outer wall of the clamp 1. The locking seat 4 is fixedly installed on the clamp 1 by the card holder 9, thereby providing a protective effect for the locking seat 4.

[0041] The inner wall of the clamp 1 is provided with a protective pad 10. The protective pad 10 is made of rubber and provides protection at the flue joint. The rubber material increases the friction between the inner wall of the clamp 1 and the outer wall of the flue, thereby improving the stability of the clamp 1.

[0042] A buffer element 14 is provided through the inner wall of the clamp 1 near the bayonet. An outer cylinder 15 is provided on the outer wall of the clamp 1 opposite to the buffer element 14. An elastic element 17 is provided between the end of the buffer element 14 extending out of the clamp 1 and the inner wall of the outer cylinder 15. The elastic element 17 can be a compression spring. The outer cylinder 15 is fixedly embedded in the outer wall of the clamp 1. The buffer element 14 is a column, and the end of the buffer element 14 extending into the inner cavity of the clamp 1 is circular.

[0043] During the process of clamping the flue by the retraction of the clamp 1, the elastic force of the elastic element 17 plays a buffering role, avoiding damage to the outer wall of the flue.

[0044] Furthermore, the buffer 14 and the elastic element 17 are connected by a slider 18, which is slidably disposed on the inner wall of the outer cylinder 15. The shape of the slider 18 ensures that it slides against the inner wall of the outer cylinder 15. Both ends of the elastic element 17 are fixed to the inner wall of the outer cylinder 15 and one side of the slider 18, respectively, and the other side of the slider 18 is fixedly connected to the buffer 14.

[0045] The sliding engagement between slider 18 and outer cylinder 15 improves the accuracy of the buffer direction.

[0046] This embodiment describes a grill exhaust duct docking and locking structure. The working principle is as follows: when locking the exhaust duct docking point with two clamps, the elastic metal part 3 opens the two clamps 1 at a certain angle, and then the two clamps 1 are engaged with the outside of the exhaust duct docking point through the clamps.

[0047] Then, the locking screw 5 is driven by the limiting clip 20 to pass through the inner cavity of the limiting sleeve 19 and the inner cavity of the corresponding locking seat 4 and be threadedly connected to another locking seat 4. Then, the limiting clip 20 is engaged at the end of the limiting sleeve 19 and the limiting sleeve 19 is engaged on the surface of the adjacent locking seat 4. Then, the limiting clip 20 is turned, so that the locking seat 4 threadedly connected to the locking screw 5 drives the end of the corresponding clamp 1 to tighten and move, thereby locking the joint of the two flues.

[0048] Next, place the conical tips of the four leveling screws 6 against the bottom of the barbecue grill tabletop. Then, adjust each leveling screw 6 in turn according to the position of the clamp 1 to adjust the position of the two closed clamps 1. Finally, fix the base 2 to the bottom of the barbecue grill tabletop with bolts.

[0049] Example 2

[0050] Two external threads with opposite threads and the same pitch are opened on the outer wall of the locking screw 5 from the center position. The two locking seats 4 are respectively opened laterally through threaded through holes that penetrate the inner cavity, so that the two locking seats 4 are connected to the two external threads of the locking screw 5.

[0051] When the locking screw 5 is turned, the two locking seats 4 move relative to each other, causing the two locking seats 4 to drive the locking ends of the two clamps 1 to move relative to each other, thereby locking the flue connection.

[0052] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A barbecue grill flue connection and locking structure, characterized in that: It includes clamps (1) for engaging the two sides of the flue. The two clamps (1) are connected at one end by an elastic metal part (3). The other end of each clamp (1) is provided with a locking seat (4). The two locking seats (4) are connected by a locking screw (5) for driving the two locking seats (4) to close together. The locking screw (5) is fitted with a limiting sleeve (19) that is engaged with the outer wall of the locking seat (4). The clamps (1) are provided with a leveling component for adjusting the level of the flue connection.

2. The barbecue grill flue connection and locking structure according to claim 1, characterized in that: The leveling component includes a base (2) fixedly installed on the top of the clamp (1), and a connecting lug (8) is fixedly installed on the outer circumferential wall of the base (2). The inner cavity of the connecting lug (8) is threadedly connected to a leveling screw (6).

3. The barbecue grill flue connection and locking structure according to claim 2, characterized in that: The top end of the leveling screw (6) is conical.

4. The barbecue grill flue connection and locking structure according to claim 1, characterized in that: The leveling screw (6) has a rotating groove (13) at the end away from the conical end.

5. The barbecue grill flue connection and locking structure according to claim 1, characterized in that: The top of the abutment base (2) is provided with a groove (16), and a gasket (7) is embedded in the inner cavity of the groove (16).

6. The barbecue grill flue connection and locking structure according to claim 1, characterized in that: The locking seat (4) is embedded in the inner cavity of the card holder (9), and the card holder (9) is fixedly installed on the outer wall of the clamp (1).

7. The barbecue grill flue connection and locking structure according to claim 1, characterized in that: The inner wall of the clamp (1) is provided with a protective pad (10).

8. The barbecue grill flue connection and locking structure according to claim 1, characterized in that: A buffer (14) is provided through the inner wall of the clamp (1) near the bayonet. An outer cylinder (15) opposite to the buffer (14) is provided on the outer wall of the clamp (1). An elastic element (17) is provided between the end of the buffer (14) extending out of the clamp (1) and the inner wall of the outer cylinder (15).

9. The barbecue grill flue connection and locking structure according to claim 8, characterized in that: The buffer (14) and the elastic member (17) are connected by a slider (18), which is slidably disposed on the inner wall of the outer cylinder (15).

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