U-shaped pipe locking mechanism

Abstract

The utility model discloses a U-shaped pipe locking mechanism which comprises a base, a matching groove used for abutting against the outer bent side of a bent portion of a U-shaped pipe is formed in the base, two clamping blocks which are symmetrically arranged are connected to the base in a rotating mode, and the two clamping blocks are connected with a driving assembly used for pushing the two clamping blocks to rotate so as to enable the two clamping blocks to be opened and closed. The head portions of the two clamping blocks are provided with matching hooks which can stretch into the matching grooves when the two clamping blocks are folded and are used for abutting against the inner bent side of the bent portion of the U-shaped pipe, the driving assembly comprises a sliding base connected to the base in a sliding mode, the sliding base is connected with a pushing rod used for pushing the sliding base to slide, and the tail portions of the two clamping blocks are provided with inclined grooves which are obliquely formed. The sliding seat is provided with a guide shaft which is inserted into the inclined groove and pushes the two clamping blocks to be opened when the sliding seat slides, an elastic piece which pushes the sliding seat to reset after the sliding seat slides and enables the two clamping blocks to be closed is arranged between the sliding seat and the base, and the U-shaped pipe locking mechanism is firmer in clamping and more stable in structure.

Description

Technical Field

[0001] The utility model specifically relates to a U-shaped pipe locking mechanism. Background Art

[0002] In the field of industrial production, the fixing and supporting of pipelines are crucial tasks, and the stability of pipeline clamping directly affects the processing accuracy. As a common pipeline structure, U-shaped pipes are often used in heat exchangers, boilers, reactors and other equipment to compensate for thermal expansion and contraction caused by temperature changes, reduce pipeline stress and extend the service life of equipment. However, the special shape of U-shaped pipes poses challenges to their fixing. Traditional pipe clamps or brackets often struggle to adapt to the complex geometry of the bent part of U-shaped pipes, easily causing uneven local stress. Therefore, the inventor of the present utility model previously developed a clamping and locking device for U-shaped pipes, but this structure still has defects such as insecure clamping and unstable structure.

[0003] The present utility model is precisely generated based on the above deficiencies. Summary of the Utility Model

[0004] The purpose of the present utility model is to overcome the deficiencies of the prior art and provide a U-shaped pipe locking mechanism with firmer clamping and more stable structure.

[0005] The utility model is achieved through the following technical solutions:

[0006] A U-shaped pipe locking mechanism includes a base. A fitting groove for abutting against the outer bent side of the bent part of the U-shaped pipe is provided on the base. Two symmetrically arranged clamping blocks are rotatably connected to the base. A driving component for pushing the two clamping blocks to rotate and thus open and close them is connected to the two clamping blocks. The heads of the two clamping blocks are both provided with fitting hooks that can extend into the fitting groove when the two clamping blocks are closed and are used for abutting against the inner bent side of the bent part of the U-shaped pipe. The driving component includes a sliding seat slidably connected to the base. A push rod for pushing the sliding seat to slide is connected to the sliding seat. Inclined grooves are provided at the tails of the two clamping blocks. A guide shaft inserted into the inclined grooves and used for pushing the two clamping blocks to open when the sliding seat slides is provided on the sliding seat. An elastic member for pushing the sliding seat to reset and causing the two clamping blocks to close after the sliding seat slides is provided between the sliding seat and the base.

[0007] For the U-shaped pipe locking mechanism as described above, a fitting hole communicating with the fitting groove and used for the fitting hook of the clamping block to extend into is provided on the side wall of the base.

[0008] For the U-shaped pipe locking mechanism as described above, two symmetrically arranged push rods are connected to the sliding seat.

[0009] In the U-shaped tube locking mechanism as described above, two elastic members are provided, and the two elastic members and the two push rods are provided correspondingly.

[0010] As described above, the U-shaped tube locking mechanism, the base is provided with a accommodating cavity and a sliding groove connected to the accommodating cavity, the sliding seat includes a sliding block that can slide in the sliding groove, the lower part of the sliding block is located in the accommodating cavity and the lower part of the sliding block is connected to two mounting feet, the pushing rod is connected to the mounting feet, one end of the elastic member abuts against the mounting feet and the other end abuts against the side wall of the accommodating cavity.

[0011] In the U-shaped tube locking mechanism as described above, the base is provided with a vertical slot hole arranged vertically, and the guide shaft is inserted into the vertical slot hole.

[0012] In the U-shaped tube locking mechanism as described above, the matching hook has a convex arc surface that matches the shape of the inner curved side of the curved portion of the U-shaped tube.

[0013] In the U-shaped tube locking mechanism as described above, the inclined groove includes an arc segment at the bottom and a straight segment at the top, and the angle α between the tangent direction of the arc segment and the length direction of the straight segment is less than 180°.

[0014] As described above, in the U-shaped tube locking mechanism, the base is detachably connected with a front cover plate for covering the accommodating cavity and the sliding groove.

[0015] In the U-shaped tube locking mechanism as described above, the vertical slot hole is a through hole, and the base is detachably connected with a side cover plate for sealing the vertical slot hole.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The U-shaped tube locking mechanism of the utility model is provided with a matching groove for placing the U-shaped tube, and then the head of the clamping block is extended into the matching groove to fix the U-shaped tube in the groove, so that the U-shaped tube can be clamped stably and firmly to prevent the U-shaped tube from being separated from the U-shaped groove. The whole structure is simple and stable and reliable during operation.

[0018] The base of the utility model is provided with a matching hole communicating with the matching groove, so that the four side walls in the matching groove are complete. When the U-shaped tube is placed in the matching groove, it can play a role of preliminary positioning, and then the matching hook of the clamping block enters the matching groove through the matching hole. The matching hook and the matching groove form a channel surrounding the curved portion B of the U-shaped tube, making the entire clamping structure more firm and reliable, and having a more accurate positioning effect;

[0019] The sliding seat of the present utility model is connected with two symmetrically arranged push rods, and corresponding elastic members are arranged at the same time. The sliding seat is pushed to slide by the combined action of the two push rods. On the one hand, the working thrust of each push rod can be reduced, and on the other hand, the sliding seat can be more evenly stressed, improving the stability of the structure. Brief Description of the Drawings

[0020] Figure 1 is a three-dimensional schematic diagram of the U-shaped tube locking mechanism of the present utility model;

[0021] Figure 2 is a sectional schematic diagram of the U-shaped tube locking mechanism of the present utility model;

[0022] Figure 3 is an exploded schematic diagram of the U-shaped tube locking mechanism of the present utility model;

[0023] Figure 4 is a partial structure schematic diagram of the U-shaped tube locking mechanism of the present utility model;

[0024] Figure 5 is a structure schematic diagram of two clamping blocks of the present utility model. Detailed Embodiment

[0025] The present utility model will be further described below in conjunction with the drawings:

[0026] The orientations described in the description of the utility model, such as "upper", "lower", "left", "right", "front", "rear", etc., are all based on the orientations of the drawings and are for the purpose of facilitating the description of the relationships between various components, rather than indicating the only or absolute positional relationships between various components. It is only one of the implementation manners for realizing the utility model and is not a limitation on its implementation manner.

[0027] As Figure 1 and Figure 2 shown, in this embodiment, a U-shaped tube locking mechanism is provided, which includes a base 1. A fitting groove 11 for abutting against the outer bent side of the bent portion B of the U-shaped tube is provided on the base 1. The bottom surface of the fitting groove 11 conforms to the contour of the bent portion B of the U-shaped tube, and the width of the fitting groove 11 generally conforms to the outer diameter of the U-shaped tube. In this way, the U-shaped tube can place the bent portion B downward in the fitting groove 11. Two symmetrically arranged clamping blocks 2 are rotatably connected to the base 1. As Figure 2 and Figure 3 shown, a rotating shaft 18 is provided on the base 1, and the two clamping blocks 2 are both rotatably sleeved on the rotating shaft 18, so that the two clamping blocks 2 can rotate in opposite directions to open or close;

[0028] As Figures 1 to 3As shown, the two clamping blocks 2 are connected with a driving assembly A for pushing the two to rotate so as to open and close the two clamping blocks. The heads of the two clamping blocks 2 are provided with a matching hook 21 that can extend into the matching groove 11 when the two are closed and is used to abut against the inner curved side of the curved portion of the U-shaped tube. The driving assembly A includes a sliding seat 3 slidably connected to the base 1, and the sliding seat 3 is connected with a pushing rod 4 for pushing the sliding seat 3 to slide. The tails of the two clamping blocks 2 are provided with an inclined groove 22. Since the two clamping blocks 2 are symmetrically arranged, the two clamping blocks 2 The inclined grooves 22 of the two clamping blocks 2 are also symmetrical, that is, the inclined grooves 22 of the two clamping blocks 2 are inclined in opposite directions, and the sliding seat 3 is provided with a guide shaft 31 inserted into the inclined groove 22 and then pushing the two clamping blocks 2 to open when the sliding seat 3 slides, so that when the sliding seat 3 slides in one direction, the heads of the two clamping blocks 2 are opened, and an elastic member 5 is provided between the sliding seat 3 and the base 1 to push the sliding seat 3 to reset after the sliding seat 3 slides and make the two clamping blocks 2 close together, and the sliding seat 3 is pushed to reset by the elastic member 5 after the push rod 4 removes the thrust. In this embodiment, when the sliding seat 3 slides upward, the heads of the two clamping blocks 2 are opened, and after the sliding seat 3 slides upward, the thrust of the push rod 4 is removed, and the heads of the two clamping blocks 2 are closed, and the elastic member 5 still maintains elasticity, so that the closed two clamping blocks 2 remain clamped, and self-locking is achieved; of course, the sliding seat 3 can also slide downward to open the heads of the two clamping blocks 2, and the inclination direction of the inclined groove 22 is set accordingly. Through the above structure, the U-shaped tube can be clamped stably and firmly to prevent the U-shaped tube from being separated from the U-shaped groove. The whole structure is simple and stable and reliable during operation.

[0029] As a preferred solution, Figures 1 to 3 As shown, a mating hole 12 is provided on the side wall of the base 1, which is connected with the mating groove 11 and is used for the mating hook 21 of the clamping block 2 to extend into, so that the four side walls in the mating groove 11 are complete. When the U-shaped tube is placed in the mating groove 11, it can play a role in preliminary positioning, and then the mating hook 21 of the clamping block 2 enters the mating groove 11 through the mating hole 12. The mating hook 21 and the mating groove 11 form a channel surrounding the curved portion B of the U-shaped tube, making the entire clamping structure more firm and reliable while having a more precise positioning effect.

[0030] As a preferred solution, Figures 1 to 3 As shown, the sliding seat 3 is connected to two symmetrically arranged push rods 4. In addition, two elastic members 5 are provided, and the two elastic members 5 and the two push rods 4 are correspondingly arranged. The two push rods 4 work together to push the sliding seat 3 to slide, which can reduce the working thrust of each push rod 4 and make the sliding seat 3 more evenly stressed, thereby improving the stability of the structure.

[0031] like Figure 2 and Figure 3As shown, a receiving cavity 13 and a sliding groove 14 communicating with the receiving cavity 13 are provided on the base 1. The sliding seat 3 includes a sliding block 32 that can slide in the sliding groove 14. The lower part of the sliding block 32 is located in the receiving cavity 13, and two mounting feet 33 are connected to the lower part of the sliding block 32. The push rod 4 is connected to the mounting feet 33. One end of the elastic member 5 abuts against the mounting feet 33 and the other end abuts against the side wall of the receiving cavity 13, which can make the structure more stable and the whole structure more compact at the same time.

[0032] Preferably, as Figure 3 shown, a front cover plate 16 for covering the receiving cavity 13 and the sliding groove 14 is detachably connected to the base 1 to better protect the mechanical structure in the receiving cavity 13.

[0033] In order to make the sliding of the sliding seat 3 smoother, as Figure 2 and Figure 3 shown, a vertical slot hole 15 is provided on the base 1. The guide shaft 31 is inserted into the vertical slot hole 15, so that the sliding seat 3 can be supported and guided during the sliding process, and the sliding is smoother. At the same time, the guide shaft 31 passes through the inclined slot 22 and then is inserted into the vertical slot hole 15, making clever use of space and reducing the structural volume.

[0034] Preferably, the vertical slot hole 15 is a through hole, and a side cover plate 17 for covering the vertical slot hole 15 is detachably connected to the base 1 to play a protective role and facilitate the machining of the vertical slot hole 15.

[0035] Preferably, as Figure 2 and Figure 4 shown, the mating hook 21 has a convex arc surface 211 that matches the inner curved side of the U-shaped tube bending part B, so that the inner surface of the closed mating hook 21 is consistent with the contour shape of the inner curved side of the U-shaped tube bending part B, improving the clamping stability and positioning accuracy.

[0036] As a preferred solution, as Figure 4 shown, the inclined slot 22 includes an arc segment 221 at the lower part and a straight segment 222 at the upper part. The included angle α between the tangent direction of the arc segment 221 and the length direction of the straight segment 222 is less than 180°. In this way, during the upward sliding process of the sliding seat 3, the guide shaft 31 first slides smoothly in the arc segment 221, so that the two clamping blocks 2 slowly open. When they are opened to a preset amplitude, then the guide shaft 31 slides to the straight segment 222. At this time, the clamping blocks 22 remain open, making the structure more stable.

[0037] The above are only embodiments of the present utility model, and common general knowledge such as specific structures and characteristics known in the solution is not described in detail herein. It should be noted that for those skilled in the art, without departing from the structure of the present utility model, several modifications and improvements can be made, and these should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicability of the patent. The protection scope claimed in this application shall be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A U-shaped tube locking mechanism, characterized in that: It includes a base (1). A mating groove (11) for abutting against the outer bent side of the U-shaped tube bending part is provided on the base (1). Two symmetrically arranged clamping blocks (2) are rotatably connected to the base (1). The two clamping blocks (2) are connected with a driving assembly (A) for pushing them to rotate so as to open and close them. The heads of the two clamping blocks (2) are both provided with mating hooks (21) that can extend into the mating groove (11) when the two clamping blocks (2) are closed and are used for abutting against the inner bent side of the U-shaped tube bending part. The driving assembly (A) includes a sliding seat (3) slidably connected to the base (1). A push rod (4) for pushing the sliding seat (3) to slide is connected to the sliding seat (3). Inclined grooves (22) are provided at the tails of the two clamping blocks (2). A guide shaft (31) inserted into the inclined grooves (22) and used for pushing the two clamping blocks (2) to open when the sliding seat (3) slides is provided on the sliding seat (3). An elastic member (5) for pushing the sliding seat (3) to reset and making the two clamping blocks (2) close is provided between the sliding seat (3) and the base (1).

2. The U-shaped tube locking mechanism according to claim 1, characterized in that: A mating hole (12) communicating with the mating groove (11) and for the mating hook (21) of the clamping block (2) to extend into is provided on the side wall of the base (1).

3. The U-shaped tube locking mechanism according to claim 1, wherein: Two symmetrically arranged push rods (4) are connected to the sliding seat (3).

4. The U-shaped tube locking mechanism according to claim 3, wherein: Two elastic members (5) are provided. The two elastic members (5) and the two push rods (4) are arranged correspondingly.

5. The U-shaped tube locking mechanism according to claim 4, characterized in that: A receiving cavity (13) and a sliding groove (14) communicating with the receiving cavity (13) are provided on the base (1). The sliding seat (3) includes a sliding block (32) that can slide in the sliding groove (14). The lower part of the sliding block (32) is located in the receiving cavity (13), and two mounting feet (33) are connected to the lower part of the sliding block (32). The push rod (4) is connected to the mounting feet (33). One end of the elastic member (5) abuts against the mounting feet (33), and the other end abuts against the side wall of the receiving cavity (13).

6. The U-shaped tube locking mechanism according to claim 1, wherein: A vertically arranged vertical slot hole (15) is provided on the base (1). The guide shaft (31) is inserted into the vertical slot hole (15).

7. The U-shaped tube locking mechanism according to claim 1, characterized in that: The mating hook (21) has a convex arc surface (211) matching the shape of the inner bent side of the U-shaped tube bending part.

8. The U-shaped tube locking mechanism according to claim 1, characterized in that: The inclined groove (22) includes an arc section (221) located at the lower part and a straight section (222) located at the upper part. The included angle α between the tangent direction of the arc section (221) and the length direction of the straight section (222) is less than 180°.

9. The U-shaped tube locking mechanism according to claim 5, wherein: The base (1) is detachably connected with a front cover plate (16) for covering the receiving cavity (13) and the sliding groove (14).

10. The U-shaped tube locking mechanism according to claim 6, characterized in that: The vertical slot hole (15) is a through hole. The base (1) is detachably connected with a side cover plate (17) for covering the vertical slot hole (15).

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