Adapter for pressure switch

Abstract

The utility model relates to the technical field of pressure switches, in particular to an adapter for a pressure switch, which comprises a connecting plate, an adapter straight pipe is arranged at the center of the connecting plate, the adapter straight pipe is connected with an adapter bent pipe through a rotary joint, and a movable screwing head is arranged at one end of the adapter bent pipe, which is not connected with the rotary joint. Threads are arranged on the inner periphery of the movable screwing head, a sliding rail is arranged on the periphery of the switching straight pipe in a surrounding mode, a sliding block is movably connected to the sliding rail, a hoop set used for installing a pressure switch is connected to the sliding block, the switching bent pipe turns by 90 degrees, and a first blocking piece is arranged on the periphery of the end, close to the movable screwing head, of the switching bent pipe; a second blocking piece is arranged on the inner periphery of the end, close to the turning-connection bent pipe, of the movable screwing head. According to the utility model, the position of the pressure switch on the connecting plate is adjustable, the arrangement is flexible, other pipelines can be avoided, and the installation is convenient; the pressure switch is protected by the hoop group, and safe operation of the pressure switch is guaranteed; and the pressure switch is transversely arranged, so that the installation space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure switches, in particular to an adapter for a pressure switch. Background Art

[0002] Pressure switches are a common industrial automation component, widely used in various occasions that require pressure monitoring and control. However, pressure switches are small in size, and when they need to be installed in larger openings, adapters are required. Ordinary adapters often take up a large volume, and the position of the pressure switch on them is fixed and cannot be adjusted, and they cannot provide certain safety protection for the housing of the pressure switch, which brings great inconvenience to the installation and maintenance of the pressure switch. Summary of the invention

[0003] The purpose of the utility model is to overcome the above-mentioned existing technical problems and provide a new adapter for pressure switch.

[0004] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0005] A adapter for a pressure switch comprises a connecting plate, a connecting straight tube is arranged at the center of the connecting plate, the connecting straight tube is connected to a connecting elbow via a rotating joint, a movable screw head is arranged at the end of the connecting elbow that is not connected to the rotating joint, a thread is arranged on the inner periphery of the movable screw head, a slide rail is arranged around the outer periphery of the connecting straight tube, a slider is movably connected to the slide rail, and a clamp group for installing a pressure switch is connected to the slider.

[0006] Furthermore, the adapter elbow turns 90 degrees, and a baffle plate 1 is arranged on the outer periphery of one end close to the movable screw head, and a baffle plate 2 is arranged on the inner periphery of one end of the movable screw head close to the adapter elbow, and the inner diameter of the baffle plate 2 is smaller than the outer diameter of the baffle plate 1.

[0007] Furthermore, the slide rail is in a 360° circular ring shape, the clamp group is farther away from the central axis of the connecting plate than the adapter elbow, and the clamp group includes a lower seat and an upper cover, which are separated or hinged, and the lower seat and the upper cover are tightly connected to form an annular empty passage in the middle.

[0008] Furthermore, soft rubber pads are provided on the inner peripheries of the lower seat and the upper cover.

[0009] Furthermore, the transition straight pipe is connected to the central opening of the connecting plate, a transition arc chamfer is provided at the central opening on one side of the connecting plate that is not in contact with the transition straight pipe, and ≥4 bolt holes penetrating the plane are provided around the central opening of the connecting plate.

[0010] Furthermore, a groove surrounding the central opening is provided on a side of the connecting plate that is not in contact with the transition straight pipe.

[0011] Furthermore, the size of the connecting plate is DN15 to DN200.

[0012] Furthermore, the slider is provided with a screw perpendicular to the slide rail, and the thread of the screw passes through the slider.

[0013] The beneficial effects of adopting the technical solution of the utility model are:

[0014] The utility model discloses an adapter for a pressure switch, which enables the position of the pressure switch on a connecting plate to be adjustable and has flexible layout, and can avoid other pipelines, thus facilitating installation and construction; a clamp group forms protection for the housing of the pressure switch to ensure the safe operation of the pressure switch; and the pressure switch can also be arranged horizontally, which saves installation space compared with a vertical arrangement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0018] Figure 3 for Figure 1 Schematic diagram of the cross-section structure along the B-B direction;

[0019] Figure 4 for Figure 3 The enlarged schematic diagram at C in the middle;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the utility model from another angle.

[0021] Markings in the figure:

[0022] 1-connecting plate; 1a-bolt hole; 1b-groove; 2-adapting straight pipe; 3-swivel joint; 4-adapting elbow; 4a-blocking piece 1; 5-movable screw head; 5a-blocking piece 2; 6-slide rail; 7-slider; 8-hoop group; 8a-lower seat; 8b-upper cover; 8c-soft rubber pad. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention; it should be understood that the terms "upper", "lower", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figure 1 to Figure 5 As shown, a pressure switch adapter includes a connecting plate 1 for installation on a measured pipeline or container, the connecting plate 1 has a size of DN15 to DN200 and an outer diameter of 46.5 mm to 278.5 mm; a connecting straight pipe 2 is vertically arranged at the center of the connecting plate 1, the connecting straight pipe 2 is connected to the central opening of the connecting plate 1, and the connecting straight pipe 2 is connected to a connecting elbow 4 through a rotating joint 3. The advantage of the rotating joint 3 is that the two connecting sides can rotate relative to each other, which makes the installation and adjustment of the pipeline system more convenient, and also makes the pipeline system more flexible and reliable;

[0025] The end of the adapter elbow 4 that is not connected to the rotary joint 3 is provided with a movable screw head 5, which can rotate on the periphery of the adapter elbow 4, and the inner periphery of the movable screw head 5 is provided with a thread for connecting the external thread interface of the pressure switch. The outer periphery of the adapter straight pipe 2 is surrounded by a slide rail 6, and a slider 7 is movably connected to the slide rail 6. The slider 7 is connected to a clamp group 8 for installing the pressure switch. The slide rail 6 is a 360° ring shape. The clamp group 8 is farther away from the central axis of the connecting plate 1 than the adapter elbow 4. The clamp group 8 includes a lower seat 8a and an upper cover 8. b. The two are separated or hinged and fixed by screws. The lower seat 8a and the upper cover 8b are closely connected to form an annular air passage in the middle. The inner periphery of the lower seat 8a and the upper cover 8b is provided with a soft rubber pad 8c. The docking of the lower seat 8a and the upper cover 8b clamps the pressure switch in the middle. The clamp group 8 not only plays a fixing role, but also forms a protection for the outer shell of the pressure switch to ensure the safe operation of the pressure switch. The combination of the slide rail 6 and the slider 7 realizes that the position of the clamp group 8 on the connecting plate 1 is variable, and it can be flexibly adjusted according to different on-site pipeline conditions during installation.

[0026] Specifically, the adapter elbow 4 is a 90° turn, and a baffle 1 4a is provided on the outer periphery of one end thereof close to the movable screw head 5, and a baffle 2 5a is provided on the inner periphery of one end of the movable screw head 5 close to the adapter elbow 4. The inner diameter of the baffle 2 5a is smaller than the outer diameter of the baffle 1 4a. Therefore, the baffle 1 4a and the baffle 2 5a restrict the movable screw head 5 from escaping from the adapter elbow 4. When the pressure switch and the adapter elbow 4 are connected, the exposed ports of the two are first connected, and the movable screw head 5 is rotated so that its internal thread is screwed with the external thread of the pressure switch. The adapter elbow 4 realizes the transformation of the vertical connection between the pressure switch and the connecting plate 1 into a horizontal connection. The height occupied on the connecting plate 1 is reduced, which can save a certain amount of installation space, which is beneficial to the equipment installation, construction and maintenance.

[0027] In addition, a transition arc chamfer is provided at the center opening of one side of the connecting plate 1 that is not in contact with the transition straight pipe 2, and ≥4 bolt holes 1a that penetrate the plane are provided around the center opening of the connecting plate 1. The bolt holes 1a are used to connect the connecting plate 1 to the flange on the measured pipeline or container; a groove 1b surrounding the center opening is provided on one side of the connecting plate 1 that is not in contact with the transition straight pipe 2, and the groove 1b is used to accommodate a rubber sealing ring. The rubber sealing ring can effectively prevent the medium from leaking from the pipeline connection, and can also withstand the impact of pressure and temperature brought by the medium.

[0028] After the pressure switch is moved to the desired position on the connecting plate 1, it needs to be fixed. Therefore, a screw perpendicular to the slide rail 6 is provided on the slider 7. The thread of the screw penetrates the slider 7. When the screw is turned to make the end contact the slide rail 6, the slider 7 cannot move based on the slide rail 6, thereby fixing the clamp group 8 relative to the connecting plate 1 and fixing the position of the pressure switch. When the position of the pressure switch needs to be adjusted, just loosen the screw outward again.

[0029] The above embodiments of the present invention are for inspiration. Through the above description, relevant technicians can make various changes and modifications without departing from the technical concept of the present invention. Any modification, equivalent replacement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An adapter for a pressure switch, characterized in that: The invention comprises a connecting plate (1), wherein a transfer straight pipe (2) is arranged at the center of the connecting plate (1), wherein the transfer straight pipe (2) is connected to a transfer elbow pipe (4) via a rotary joint (3), wherein an end of the transfer elbow pipe (4) not connected to the rotary joint (3) is provided with a movable screw head (5), wherein the inner periphery of the movable screw head (5) is provided with a thread, wherein a slide rail (6) is arranged around the outer periphery of the transfer straight pipe (2), wherein a slider (7) is movably connected to the slide rail (6), and wherein a clamp group (8) for installing a pressure switch is connected to the slider (7).

2. The pressure switch adapter according to claim 1, characterized in that: The transfer elbow (4) turns 90 degrees, and a baffle plate 1 (4a) is arranged on the outer periphery of one end of the transfer elbow (4) close to the movable screw head (5), and a baffle plate 2 (5a) is arranged on the inner periphery of one end of the movable screw head (5) close to the transfer elbow (4), and the inner diameter of the baffle plate 2 (5a) is smaller than the outer diameter of the baffle plate 1 (4a).

3. The pressure switch adapter according to claim 2, characterized in that: The slide rail (6) is in the shape of a 360° circular ring. The clamp group (8) is farther away from the central axis of the connecting plate (1) than the transfer elbow (4). The clamp group (8) comprises a lower seat (8a) and an upper cover (8b), which are separated or hinged. The lower seat (8a) and the upper cover (8b) are closely connected to form an annular empty passage in the middle.

4. The pressure switch adapter according to claim 3, characterized in that: The inner peripheries of the lower seat (8a) and the upper cover (8b) are provided with soft rubber pads (8c).

5. The pressure switch adapter according to claim 1, characterized in that: The transition straight pipe (2) is in communication with the central opening of the connection plate (1); a transition arc chamfer is provided at the central opening of a side of the connection plate (1) that is not in contact with the transition straight pipe (2); and ≥4 bolt holes (1a) penetrating the plane are provided around the central opening of the connection plate (1).

6. The pressure switch adapter according to claim 5, characterized in that: A groove (1b) surrounding the central opening is provided on the side of the connecting plate (1) that does not contact the transition straight pipe (2).

7. The pressure switch adapter according to claim 6, characterized in that: The size of the connecting plate (1) is DN15-DN200.

8. The pressure switch adapter according to claim 4, characterized in that: The slider (7) is provided with a screw perpendicular to the slide rail (6), and the thread of the screw passes through the slider (7).

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