A clamping device for chemical equipment maintenance

Abstract

The utility model discloses a clamping device for chemical equipment maintenance, including base, the top of base is provided with two apron, two the bottom of apron is all through height adjusting mechanism and base connection, and the top surface middle part of apron is provided with V type groove, and the top of apron is provided with V type clamping plate, and the top fixed mounting of V type clamping plate has the lug, and the both ends of apron and V type clamping plate are commonly provided with a plurality of guide rod, install guide rod on the base after pushing base and apron to the two chemical pipelines of waiting to weld below, then operate height adjusting mechanism and make two apron move up to be close to chemical pipeline and be at the same height, then hoist U type clamping plate to corresponding apron and cooperate after with guide rod, cooperate and tighten the locking bolt on apron with the threaded hole on apron, can the coaxial fixed clamping of two chemical pipeline of waiting to weld to be carried out, simple and convenient operation, and can adapt to the chemical pipeline of different outer diameter.

Description

Technical Field

[0001] This utility model relates to a clamping device, specifically a clamping device for the maintenance of chemical equipment. Background Technology

[0002] Chemical equipment is a general term for the machines and equipment used in chemical industrial production. Because chemical products are diverse and process conditions vary, there are also many types and specifications of chemical equipment. Chemical equipment can generally be divided into two categories: one is machines, which mainly bear mechanical stress and come into direct contact with materials, such as pumps, valves, and pipelines; the other is equipment, which does not bear mechanical stress and does not come into direct contact with materials, but is an indispensable component in completing the process, such as reactors, towers, and heat exchangers.

[0003] Currently, when repairing chemical equipment, especially replacing damaged chemical pipelines, clamping equipment is usually required to clamp and fix the newly installed pipeline coaxially with the existing pipeline to ensure the stability and coaxiality of the pipeline during the welding process. A search revealed a patent with publication number CN218556122U that discloses a portable petrochemical pipeline welding clamp. This clamp consists of a fixed half-ring, a driven wheel, a driving wheel, a transmission structure, and a motor. In use, the pipeline is placed on top of the driven and driving wheels and fixed by a fixing block. Welding is then performed after the two pipeline sections are aligned. Once half of the welding is complete, the motor is started, and the motor drives the driving wheel through the transmission structure, which in turn rotates the pipeline. This eliminates the need for workers to hold the pipeline with both hands, making rotation much easier and more convenient.

[0004] While the above solution can provide coaxial fixation for the two pipes to be welded, it is inconvenient to place the pipes into the fixing half-ring when performing maintenance welding on existing pipes. Furthermore, it can only provide coaxial fixation for pipes with a specific outer diameter, which has significant limitations and needs improvement. Utility Model Content

[0005] The purpose of this invention is to provide a clamping device for the maintenance of chemical equipment, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A clamping device for chemical equipment maintenance includes a base with two support plates on top. The bottom of each support plate is connected to the base via a height adjustment mechanism. A V-groove is provided in the center of the top surface of each support plate. A V-shaped clamping plate is provided above the support plate, and a lifting lug is fixedly installed on the top of the V-shaped clamping plate. Multiple guide rods are installed through both ends of the support plates and the V-shaped clamping plate. The bottom end of each guide rod is detachably connected to the base. A scale strip is provided on the outer wall of each guide rod. Locking bolts are provided at both ends of the V-shaped clamping plate. Threaded holes that match the locking bolts are provided on the top of the support plates at corresponding positions. The locking bolts are engaged with the corresponding threaded holes.

[0008] As a further embodiment of this utility model: the height adjustment mechanism includes a bidirectional screw rod rotatably mounted on the top of the base via a bearing seat. Two slide blocks are fitted onto the bidirectional screw rod. Each of the two slide blocks has a threaded hole adapted to the bidirectional screw rod. A first bolt head is fixedly connected to one end of the bidirectional screw rod. The slide block is slidably connected to the base. A connecting rod is rotatably connected to the top of the slide block via a first hinge seat. The top end of the connecting rod is rotatably connected to the bottom of the support plate via a second hinge seat.

[0009] As a further embodiment of this utility model: multiple guide rails are fixedly installed on the top of the base, the guide rails are parallel to the bidirectional screw, and the bottom of the slide block is provided with a sliding groove that matches the guide rail, and the guide rail passes through the corresponding sliding groove.

[0010] As a further embodiment of this utility model: both the V-shaped clamp and the support plate are provided with through holes that are adapted to the outer diameter of the guide rod, and the guide rod passes through the corresponding through holes.

[0011] As a further improvement of this utility model: nuts are fixedly installed at the top of the base and at the corresponding positions of the guide rod, and the bottom end of the guide rod is connected to the corresponding nut through external thread.

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

[0013] In this invention, after pushing the base and support plate under the two chemical pipes to be welded, a guide rod is installed on the base. Then, the height adjustment mechanism is operated to move the two support plates upward until they are close to the chemical pipes and at the same height. After that, the U-shaped clamp is hoisted onto the corresponding support plate and cooperates with the guide rod. The locking bolts on the support plate are then engaged with the threaded holes on the support plate and tightened. This allows for coaxial fixing and clamping of the two chemical pipes to be welded. The operation is simple and convenient, and it can adapt to chemical pipes with different outer diameters. Attached Figure Description

[0014] Figure 1This is a schematic diagram of a clamping device for the maintenance of chemical equipment.

[0015] Figure 2 This is a schematic diagram of the structure of a bidirectional screw in a clamping device for chemical equipment maintenance.

[0016] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0017] Among them, the base 1, bidirectional screw 2, first bolt head 3, slide 4, slide groove 5, guide rail 6, first hinge seat 7, connecting rod 8, support plate 9, second hinge seat 10, V-groove 11, V-clamp 12, lifting lug 13, locking bolt 14, nut 15, guide rod 16, second bolt head 17, and chemical pipeline 18 are all included. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-3 In this embodiment of the utility model, a clamping device for chemical equipment maintenance includes a base 1. Two support plates 9 are arranged on the top of the base 1. The bottom of the two support plates 9 are connected to the base 1 through a height adjustment mechanism. A V-groove 11 is provided in the middle of the top surface of the support plate 9. A V-shaped clamping plate 12 is arranged on the top of the support plate 9. A lifting lug 13 is fixedly installed on the top of the V-shaped clamping plate 12. Multiple guide rods 16 are installed through both ends of the support plate 9 and the V-shaped clamping plate 12. The bottom end of the guide rod 16 is detachably connected to the base 1. A scale strip is provided on the outer wall of the guide rod 16. Locking bolts 14 are provided at both ends of the V-shaped clamping plate 12. Threaded holes adapted to the locking bolts 14 are opened at the top of the support plate 9 and the corresponding threaded holes. The locking bolts 14 are connected to the corresponding threaded holes.

[0020] By adopting the above-described scheme, this utility model pushes the base 1 and the support plate 9 under the two chemical pipes 18 to be welded. Then, a guide rod 16 is installed on the base 1. After that, the height adjustment mechanism is operated to move the two support plates 9 upwards until they are close to the chemical pipes 18 and at the same height. Then, the U-shaped clamp 12 is hoisted onto the corresponding support plate 9 and cooperates with the guide rod 16. Finally, the locking bolt 14 on the support plate 9 is engaged with the threaded hole on the support plate 9 and tightened. This allows the two chemical pipes 18 to be welded to be coaxially fixed and clamped. The operation is simple and convenient and can be adapted to chemical pipes 18 with different outer diameters.

[0021] Specific combination Figure 1 and Figure 2 In one embodiment of this utility model, the height adjustment mechanism includes a bidirectional screw 2 rotatably mounted on the top of the base 1 via a bearing seat. Two slides 4 are fitted onto the bidirectional screw 2. Each slide 4 has a threaded hole adapted to the bidirectional screw 2. One end of the bidirectional screw 2 is fixedly connected to a first bolt head 3. The slide 4 is slidably connected to the base 1. The top of the slide 4 is rotatably connected to a connecting rod 8 via a first hinge seat 7. The top end of the connecting rod 8 is rotatably connected to the bottom of the support plate 9 via a second hinge seat 10.

[0022] By driving the double-ended screw 2 to rotate using a wrench or power tool, the two slide blocks 4 can be driven to move in opposite directions simultaneously. This allows the connecting rod 8 to drive the support plate 9 to move up or down, thereby adjusting the height of the support plate 9.

[0023] Specific combination Figure 1 and Figure 3 In one embodiment of the present invention, a plurality of guide rails 6 are fixedly installed on the top of the base 1. The guide rails 6 are parallel to the bidirectional screw 2. The bottom of the slide block 4 is provided with a sliding groove 5 that is adapted to the guide rails 6. The guide rails 6 pass through the corresponding sliding grooves 5.

[0024] The cooperation between the guide rail 6 and the slide groove 5 ensures the stability of the slide block 4 moving on the base 1.

[0025] In one embodiment of this utility model, both the V-shaped clamping plate 12 and the support plate 9 are provided with through holes that are adapted to the outer diameter of the guide rod 16. The guide rod 16 passes through the corresponding through holes to ensure that the V-shaped clamping plate 12 can be accurately aligned with the support plate 9 and to ensure the stability of the support plate 9 when it moves up and down.

[0026] Specific combination Figure 1 and Figure 3In one embodiment of this utility model, nuts 15 are fixedly installed at the top of the base 1 and at the corresponding positions of the guide rods 16. The bottom end of the guide rods 16 is connected to the corresponding nuts 15 through external threads, so as to facilitate the assembly and disassembly of each guide rod 16 on the base 1.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A clamping device for repairing chemical equipment, characterized in that: Includes a base (1), on which two support plates (9) are provided. The bottom of the two support plates (9) are connected to the base (1) through a height adjustment mechanism. A V-groove (11) is provided in the middle of the top surface of the support plate (9). A V-shaped clamp (12) is provided above the support plate (9). A lifting lug (13) is fixedly installed on the top of the V-shaped clamp (12). The two ends of the support plate (9) and the V-shaped clamp (12) are connected together. Multiple guide rods (16) are installed together. The bottom end of the guide rod (16) is detachably connected to the base (1). The outer wall of the guide rod (16) is provided with a scale strip. Locking bolts (14) are installed at both ends of the V-shaped clamp (12). The top of the support plate (9) and the corresponding position of the locking bolt (14) are provided with threaded holes that are compatible with the locking bolt (14). The locking bolt (14) is connected to the corresponding threaded hole.

2. The clamping device for chemical equipment maintenance according to claim 1, characterized in that: The height adjustment mechanism includes a bidirectional screw (2) rotatably mounted on the top of the base (1) via a bearing seat. Two slides (4) are fitted onto the bidirectional screw (2). Each slide (4) has a threaded hole that matches the bidirectional screw (2). One end of the bidirectional screw (2) is fixedly connected to a first bolt head (3). The slide (4) is slidably connected to the base (1). The top of the slide (4) is rotatably connected to a connecting rod (8) via a first hinge seat (7). The top of the connecting rod (8) is rotatably connected to the bottom of the support plate (9) via a second hinge seat (10).

3. The clamping device for chemical equipment maintenance according to claim 2, characterized in that: The base (1) has multiple guide rails (6) fixedly installed on its top. The guide rails (6) are parallel to the bidirectional screw (2). The bottom of the slide block (4) has a groove (5) that matches the guide rail (6). The guide rail (6) passes through the corresponding groove (5).

4. The clamping device for chemical equipment maintenance according to claim 1, characterized in that: Both the V-shaped clamp (12) and the support plate (9) are provided with through holes that are adapted to the outer diameter of the guide rod (16), and the guide rod (16) passes through the corresponding through holes.

5. The clamping device for chemical equipment maintenance according to claim 1, characterized in that: Nuts (15) are fixedly installed at the top of the base (1) and at the corresponding position of the guide rod (16). The bottom end of the guide rod (16) is connected to the corresponding nut (15) through external thread.

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