A flat welding flange convenient for positioning

Abstract

The utility model relates to the technical field of flange plate discloses a flat welding flange convenient to position including flange plate one and flange plate two, the surface fixed connection of flange plate one has extension seat, the utility model discloses the cooperation of prepositioning pin and sleeve seat realizes the positioning, when assembling, prepositioning pin inserts into the access cavity of sleeve seat, makes flange plate one and flange plate two fast alignment and be in the appropriate relative position, avoided the installation error and repeated adjustment of traditional flange assembly because of the inaccuracy of manual alignment, improved the installation efficiency, at the same time, the movable sliding plate in reinforcing mechanism, telescopic spring and limit pin cooperate and work, after prepositioning pin inserts, limit pin penetrates and embeds groove and hole groove, firmly locks prepositioning pin in sleeve seat, further strengthened the stability and strength of flange plate one and flange plate two connection, effectively prevented the connection slackening or displacement because of vibration or external force in the use process, guaranteed the reliability and security of flange connection.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, and in particular to a flat welding flange that is easy to position. Background Technology

[0002] In the field of industrial pipeline connections, flat-face welding flanges are a widely used connection component. They are typically used to connect pipes, equipment, etc. into a whole, and achieve a sealed and stable connection by bolting. Flat-face welding flanges have the advantages of simple structure and low cost, and play an important role in many industries such as petroleum, chemical, power, and water supply.

[0003] However, traditional flat-face welding flanges have some problems that need to be solved in actual use. During the assembly process, due to the lack of a suitable positioning device, the alignment between flanges mainly relies on manual operation. This method is prone to inaccurate relative positions between flanges due to human error, which in turn causes installation errors. Moreover, the alignment process often requires repeated adjustments, which not only wastes a lot of time and energy, but may also affect the connection quality of the flanges. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a flat welding flange that is easy to position.

[0005] This utility model is achieved by the following technical solution: a flat welding flange that is easy to position, including a flange plate one and a flange plate two. An extension seat is fixedly connected to the surface of the flange plate one, a pre-positioning pin is fixedly connected to the surface of the extension seat, and an embedding groove is opened on the surface of the pre-positioning pin. A sleeve is fixedly connected to the surface of the flange plate two, an entry cavity is opened inside the sleeve, and a reinforcing mechanism is fixedly connected to the upper surface of the sleeve.

[0006] The reinforcement mechanism includes a storage frame, an inner wall of which is fixedly connected to a telescopic spring, a lower surface of which is fixedly connected to a movable slide plate, a raised slider fixedly connected to the surface of which is fixedly connected to the surface of which is fixedly connected to a paddle, and a limiting pin fixedly connected to the lower surface of which is fixedly connected to the ... lower surface of which is fixedly connected to the slide plate.

[0007] The above technical solution enables flange one and flange two to be positioned quickly and accurately during assembly, improving installation efficiency. The cooperation between the pre-positioning pin and the sleeve, as well as the locking effect of the limiting pin, ensures that flange one and flange two are in the correct position during installation, preventing displacement and thus improving the accuracy and stability of the connection. At the same time, the reinforcement mechanism further strengthens the connection between the flanges, ensuring the reliability and safety of the entire flat-face welding flange during use.

[0008] As a further improvement to the above solution, the storage frame is fixedly connected to the upper surface of the sleeve.

[0009] As a further improvement to the above solution, the inner wall of the storage frame is provided with a groove, and the movable slide plate is slidably connected to the inside of the groove through a raised slider.

[0010] Through the above technical solution, the cooperation between the slide and the raised slider provides guidance and limitation for the movement of the movable slide, making the movement trajectory of the movable slide more stable and accurate.

[0011] As a further improvement to the above solution, the inner wall of the inlet cavity is provided with a perforated groove.

[0012] As a further improvement to the above solution, the limiting pin is adapted to the embedded groove and the hole groove.

[0013] As a further improvement to the above scheme, the prepositioning pin is adapted to the inlet cavity.

[0014] The above technical solution enables flange one and flange two to be quickly and accurately aligned during installation, improving installation efficiency and precision.

[0015] As a further improvement to the above solution, both flange one and flange two have several bolt grooves on their surfaces.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention achieves positioning through the cooperation of a pre-positioning pin and a sleeve. During assembly, the pre-positioning pin is inserted into the inlet cavity of the sleeve, allowing flange one and flange two to be quickly aligned and in a suitable relative position. This avoids installation errors and repeated adjustments caused by inaccurate manual alignment in traditional flange assembly, thus improving installation efficiency. At the same time, the movable slide, telescopic spring, and limiting pin in the reinforcement mechanism work together. After the pre-positioning pin is inserted, the limiting pin passes through the embedding groove and the hole groove, firmly locking the pre-positioning pin in the sleeve. This further enhances the stability and strength of the connection between flange one and flange two, effectively preventing loosening or displacement of the connection due to vibration or external force during use, and ensuring the reliability and safety of the flange connection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the prepositioning pin of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the slot in this utility model;

[0021] Figure 4 This is a schematic diagram of the reinforcement mechanism of this utility model.

[0022] Explanation of key symbols:

[0023] 1. Flange 1; 2. Flange 2; 3. Extension seat; 4. Pre-positioning pin; 5. Embedded groove; 6. Sleeve; 7. Inlet cavity; 8. Reinforcing mechanism; 801. Storage frame; 802. Telescopic spring; 803. Movable slide plate; 804. Raised slider; 805. Paddle; 806. Restricting pin; 9. Hole groove; 10. Bolt groove. Detailed Implementation

[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0025] Please combine Figure 1-4 This embodiment of a flat welding flange that is easy to position includes a flange 1 and a flange 2. An extension seat 3 is fixedly connected to the surface of the flange 1, a prepositioning pin 4 is fixedly connected to the surface of the extension seat 3, and an embedding groove 5 is opened on the surface of the prepositioning pin 4. A sleeve 6 is fixedly connected to the surface of the flange 2, an entry cavity 7 is opened inside the sleeve 6, and a reinforcing mechanism 8 is fixedly connected to the upper surface of the sleeve 6.

[0026] The reinforcing mechanism 8 includes a storage frame 801. A telescopic spring 802 is fixedly connected to the inner wall of the storage frame 801. A movable slide plate 803 is fixedly connected to the lower surface of the telescopic spring 802. A raised slider 804 is fixedly connected to the surface of the movable slide plate 803. A lever 805 is fixedly connected to the surface of the movable slide plate 803. A limiting pin 806 is fixedly connected to the lower surface of the movable slide plate 803. When assembling flange 1 and flange 2, the pre-positioning pin 4 on the extension seat 3 of flange 1 is aligned with the sleeve 6 on the surface of flange 2. Then, the lever 805 is lifted upward. The lever 805 drives the movable slide plate 803 to compress the telescopic spring 802, causing the movable slide plate 803 to move along the storage frame 801. As the inner wall of frame 801 rises linearly, the movable slide plate 803 rises, and the limiting pin 806 on its lower surface disengages from the inside of the sleeve 6. Then, the prepositioning pin 4 is inserted into the entry cavity 7 inside the sleeve 6 to complete the initial positioning of flange 1 and flange 2. Subsequently, the lever 805 is slowly released, and under the reset action of the telescopic spring 802, the movable slide plate 803 descends, driving the limiting pin 806 to descend and penetrate the embedded groove 5 on the surface of the prepositioning pin 4 and the hole groove 9 on the inner wall of the entry cavity 7, thereby locking the prepositioning pin 4 inside the sleeve 6. Finally, the personnel then perform the bolt connection operation of flange 1 and flange 2. The limiting pin 806 can further enhance the stability and strength of the connection between the two.

[0027] The storage frame 801 is fixedly connected to the upper surface of the sleeve 6.

[0028] The inner wall of the storage frame 801 is provided with a sliding groove. The movable slide plate 803 is slidably connected to the inside of the sliding groove through the raised slider 804. When the lever 805 is turned, the movable slide plate 803 moves linearly along the sliding groove, realizing the smooth rise and fall of the movable slide plate 803, thereby driving the limiting pin 806 to accurately disengage from or insert into the embedded groove 5 of the prepositioning pin 4 and the hole groove 9 of the entry cavity 7.

[0029] The inner wall of the cavity 7 is provided with a perforated groove 9.

[0030] The limiting pin 806 is adapted to the embedding groove 5 and the hole groove 9. When the prepositioning pin 4 is inserted into the cavity 7, the limiting pin 806 can smoothly pass through the embedding groove 5 and the hole groove 9, and firmly lock the prepositioning pin 4 inside the sleeve 6 to prevent the prepositioning pin 4 from being displaced during use.

[0031] The prepositioning pin 4 is adapted to the entry cavity 7. During the assembly process, the prepositioning pin 4 can be smoothly inserted into the entry cavity 7 to achieve the initial positioning of flange 1 and flange 2, providing an accurate positional basis for subsequent bolt connection.

[0032] Both flange 1 and flange 2 have several bolt grooves 10 on their surfaces. After the positioning pin 4 is positioned and locked, personnel can use bolts to firmly connect flange 1 and flange 2 together. The bolts pass through the corresponding bolt grooves 10 to achieve a tight connection between the two.

[0033] The implementation principle of a flat-face welding flange for easy positioning in this embodiment is as follows: First, align the pre-positioning pin 4 on the extension seat 3 of flange 1 with the sleeve 6 on the surface of flange 2. Then, lift the lever 805 upwards. The lever 805 is connected to the movable slide plate 803. Lifting the lever 805 will cause the movable slide plate 803 to compress the telescopic spring 802, causing the movable slide plate 803 to rise linearly along the groove on the inner wall of the storage frame 801. Since the lower surface of the movable slide plate 803 is fixedly connected with the limiting pin 806, the limiting pin 806 will disengage from the sleeve 6 when the movable slide plate 803 rises. Next, insert the pre-positioning pin 4 into the entry cavity 7 inside the sleeve 6. At this time, flange 1 and flange 2 are positioned, making flange 1... 1 and 2 flanges are quickly aligned and positioned appropriately. Then, the operator slowly releases the lever 805. Under the reset action of the telescopic spring 802, the movable slide plate 803 descends, and the limiting pin 806 on its lower surface descends accordingly, penetrating the embedded groove 5 on the surface of the prepositioning pin 4 and the hole groove 9 in the inner wall of the cavity 7, thereby locking the prepositioning pin 4 inside the sleeve 6. Finally, using several bolt grooves 10 on the surfaces of flange 1 and flange 2, the two are firmly connected together by bolts. The limiting pin 806 can further enhance the stability and strength of the connection between the two, effectively preventing the connection from loosening or displacement due to vibration or external force during use, and ensuring the reliability and safety of the flange connection.

[0034] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A flat-face welding flange that is easy to position, characterized in that, The flange includes a first flange (1) and a second flange (2). An extension seat (3) is fixedly connected to the surface of the first flange (1). A pre-positioning pin (4) is fixedly connected to the surface of the extension seat (3). An embedding groove (5) is opened on the surface of the pre-positioning pin (4). A sleeve (6) is fixedly connected to the surface of the second flange (2). An inlet cavity (7) is opened inside the sleeve (6). A reinforcing mechanism (8) is fixedly connected to the upper surface of the sleeve (6). The reinforcement mechanism (8) includes a storage frame (801), a telescopic spring (802) is fixedly connected to the inner wall of the storage frame (801), a movable slide plate (803) is fixedly connected to the lower surface of the telescopic spring (802), a raised slider (804) is fixedly connected to the surface of the movable slide plate (803), a paddle (805) is fixedly connected to the surface of the movable slide plate (803), and a limiting pin (806) is fixedly connected to the lower surface of the movable slide plate (803).

2. The flat-face welding flange for easy positioning as described in claim 1, characterized in that: The storage frame (801) is fixedly connected to the upper surface of the sleeve (6).

3. The flat-face welding flange for easy positioning as described in claim 1, characterized in that: The inner wall of the storage frame (801) is provided with a groove, and the movable slide plate (803) is slidably connected to the inside of the groove through a raised slider (804).

4. The flat-face welding flange for easy positioning as described in claim 1, characterized in that: The inner wall of the inlet cavity (7) is provided with a groove (9).

5. A flat-face welding flange for easy positioning as described in claim 1, characterized in that: The limiting pin (806) is adapted to the embedding groove (5) and the hole groove (9).

6. A flat-face welding flange for easy positioning as described in claim 1, characterized in that: The prepositioning pin (4) is adapted to the inlet cavity (7).

7. A flat-face welding flange for easy positioning as described in claim 1, characterized in that: Both flange one (1) and flange two (2) have several bolt grooves (10) on their surfaces.

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