CN210223807U

CN210223807U - Angle travel switch box connecting structure and angle travel switch box thereof

Info

Publication number: CN210223807U
Application number: CN201921303010.7U
Authority: CN
Inventors: Jiaxin Hu; 胡家鑫
Original assignee: Shenzhen Satop Intelligent Control System Co Ltd
Current assignee: Shenzhen Satop Intelligent Control System Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-03-31
Anticipated expiration: 2029-08-09

Abstract

The utility model relates to the technical field of switch box connecting structure, in particular to an angle travel switch box connecting structure and an angle travel switch box thereof, the switch box connecting structure comprises a connecting piece and a concave cavity arranged on the bottom surface of a box body, the concave cavity is opened downwards, a connecting shaft is positioned in the concave cavity, the top end of the connecting piece is in transmission connection with the connecting shaft, and the bottom end of the connecting piece is in transmission connection with a driving shaft of an actuator, the utility model utilizes the concave cavity arranged on the box body of the switch box to ensure that the switch box can be attached and installed on the actuator, thereby completely sealing the connecting piece, the connecting shaft and the driving shaft of the actuator in the concave cavity, not only achieving the effect of reducing the installation space, but also forming protection for the driving shaft of the connecting piece, the connecting shaft and the actuator, being safe and reliable, reducing the occurrence of faults, having simple, can be used in narrow spaces such as dense pipelines and the like, and can also be suitable for actuators with different specifications.

Description

Angle travel switch box connecting structure and angle travel switch box thereof

Technical Field

The utility model belongs to the technical field of switch box connection structure technique and specifically relates to an angle travel switch box connection structure and angle travel switch box thereof.

Background

The valve limit switch box is also called a responder or a communicator, and is internally provided with limit switches which are divided into a straight stroke and an angular stroke, which are simply called as follows: the straight travel switch box and the angle travel switch box are mainly used for detecting the state of the valve and outputting the opening or closing position of the valve with the signal of the switching value so as to be convenient for remote control.

In various pipe network systems applied to valves, the application of automation control increasingly becomes the inevitable requirement of pipe network control, the on-off control and on-off position feedback of the valves in the pipe network become the basic functions of the pipe network control, and the valve automation control also becomes the basic control unit of the pipe network process flow control. Therefore, the application of the valve limit switch box is more and more extensive, such as many industries of petrochemical industry, water treatment, air separation and the like;

the angular travel switch box mainly comprises a pair of micro switches, an upper cam, a lower cam and a connecting shaft, wherein the upper cam and the lower cam are in transmission connection with the connecting shaft, the connecting shaft is in transmission connection with a driving shaft of the actuator, and the upper cam and the lower cam respectively trigger the two micro switches in the process of rotating along with the driving shaft so as to monitor the opening position and the closing position of the valve; when current angle travel switch box is connected with the executor of valve, generally be connected the connecting axle of switch box and the drive shaft of executor through the connecting piece, its problem that exists lies in: the connecting piece protrusion causes the whole volume grow of switch box in the bottom surface of switch box body, leads to the switch box when narrow and small spaces such as pipeline intensive use, can appear the situation of unable installation because of interfering, and the connecting part between connecting piece and connecting axle and the drive shaft all exposes in the external world, and then leads to the connecting piece to be corroded easily and by the collision of other spare parts and take place the problem of card death or damage, has certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problems that when an angular travel switch box in the prior art is arranged on an actuator, a connecting piece protrudes out of the bottom surface of a box body of the switch box, so that the connecting piece is easy to corrode and the whole volume of the switch box is increased, an angular travel switch box connecting structure and the angular travel switch box are provided; the purposes of reducing the installation space and protecting the connecting shaft of the connecting piece and the switch box and the driving shaft of the actuator are achieved.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an angle travel switch box connection structure for be connected with the executor, angle travel switch box includes the box body and rotates the connecting axle of establishing on the box body, and this switch box connection structure includes the connecting piece and sets up the cavity in the box body bottom surface, the cavity opening is downward, the connecting axle is located the cavity, the top and the connecting axle transmission of connecting piece are connected, the bottom of connecting piece is connected with the drive shaft transmission of executor, installs its bottom tip of connecting piece on the connecting axle in the cavity, the drive shaft of connecting piece and executor is all sealed in the cavity when the bottom surface of box body and executor laminating.

The cavity is arranged on the box body of the switch box, the switch box can be attached to the actuator, and therefore the driving shafts of the connecting piece, the connecting shaft and the actuator can be completely sealed in the cavity, the effect of reducing the mounting space can be achieved, the driving shafts of the connecting piece, the connecting shaft and the actuator can be protected, and the switch box is safe, reliable and capable of reducing faults.

In order to enable the connecting piece to be in transmission connection with the connecting shaft, a first protrusion protrudes downwards from the bottom end of the connecting shaft, a first clamping groove matched with the first protrusion is recessed downwards from the top end of the connecting piece, and the first protrusion is embedded into the first clamping groove.

Furthermore, the cross section of the first clamping groove is square.

In order to enable the connecting piece to be in transmission connection with the driving shaft, further, a second clamping groove is formed in the downward concave portion of the top end of the driving shaft, a second protrusion matched with the second clamping groove is formed in the downward convex portion of the bottom end of the connecting piece, and the second protrusion is embedded into the second clamping groove.

Further, the cross section of the second protrusion is square.

The utility model also provides an angle travel switch box, including foretell angle travel switch box connection structure.

The utility model has the advantages that: the utility model discloses angle travel switch box connection structure utilizes to set up the cavity on the box body of switch box, make the switch box can laminate and install on the executor, thereby can seal the drive shaft of connecting piece, connecting axle and executor is whole in the cavity, not only can reach the effect that reduces installation space, still can form the protection to the drive shaft of connecting piece, connecting axle and executor, safe and reliable and reducible trouble take place, and simple structure, compact is with low costs, installation space is little, can use in narrow and small spaces such as pipeline is intensive, still can be applicable to the executor of different specifications.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the angular travel switch box connection structure of the present invention;

fig. 2 is a schematic view of the angular travel switch box of the present invention mounted to an actuator.

In the figure: 1. the box body comprises 1-1 parts of a box body, a concave cavity, 2 parts of a connecting shaft, 2-1 parts of a first protrusion, 3 parts of a connecting piece, 3-1 parts of a first clamping groove, 3-2 parts of a second protrusion, 4 parts of an actuator, 5 parts of a driving shaft, 5-1 parts of a second clamping groove.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings, which illustrate the basic structure of the invention only in a schematic way, and thus show only the components that are relevant to the invention, and the directions and references (e.g., upper, lower, left, right, etc.) may be used only to help describe the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.

Example 1

As shown in fig. 1 and 2, an angle travel switch box connecting structure is used for connecting with an actuator 4, the angle travel switch box comprises a box body 1 and a connecting shaft 2 rotatably arranged on the box body 1, the switch box connecting structure comprises a connecting piece 3 and a concave cavity 1-1 arranged on the bottom surface of the box body 1, the concave cavity 1-1 is downward opened, the connecting shaft 2 is positioned in the concave cavity 1-1, the top end of the connecting piece 3 is in transmission connection with the connecting shaft 2, the bottom end of the connecting piece 3 is in transmission connection with a driving shaft 5 of the actuator 4, the end part of the bottom end of the connecting piece 3 arranged on the connecting shaft 2 is positioned in the concave cavity 1-1, and the connecting piece 3 and the driving shaft 5 of the actuator 4 are both sealed in the concave cavity 1-1 when the bottom surface of the box.

A first bulge 2-1 protrudes downwards from the bottom end of the connecting shaft 2, a first clamping groove 3-1 matched with the first bulge 2-1 is recessed downwards from the top end of the connecting piece 3, and the first bulge 2-1 is embedded into the first clamping groove 3-1; the cross section of the first clamping groove 3-1 is square; thereby can realize the moment of torsion transmission between connecting axle 2 and the connecting piece 3, and connecting piece 3 simple structure, convenient processing, it is with low costs.

A second clamping groove 5-1 is downwards recessed at the top end of the driving shaft 5, a second protrusion 3-2 matched with the second clamping groove 5-1 is downwards protruded at the bottom end of the connecting piece 3, and the second protrusion 3-2 is embedded into the second clamping groove 5-1; the cross section of the second bulge 3-2 is square; thereby can realize the moment of torsion transmission between the drive shaft 5 of executor 4 and connecting piece 3, and connecting piece 3 simple structure, convenient processing, it is with low costs.

The first protrusion 2-1 can be in interference fit with the first clamping groove 3-1, or the second protrusion 3-2 can be in interference fit with the second clamping groove 5-1, namely, only one of the first protrusion 2-1 and the second protrusion 3-2 needs to be in interference fit, so that the connecting piece 3 is prevented from being separated from the driving shaft 5 or the connecting shaft 2, and a certain displacement amount can be provided for the case body 1 when the case body 1 is attached and fixed to the actuator 4, so that the case body 1 is prevented from being blocked by the connecting piece 3.

The embodiment also provides an angular travel switch box, which comprises the angular travel switch box connecting structure.

When the angle travel switch box connecting structure is used, the connecting pieces 3 with corresponding specifications can be correspondingly selected according to the lengths of the driving shafts 5 of different actuators 4, so that the connecting pieces 3 are kept to be positioned in the cavities 1-1 after being connected with the driving shafts 5 of the actuators 4, and the angle travel switch box connecting structure is suitable for actuators 4 with different specifications; then, the first bulge 2-1 of the connecting shaft 2 on the box body 1 is embedded into the first clamping groove 3-1 of the connecting piece 3, so that the connecting piece 3 is in transmission connection with the connecting shaft 2, then the second bulge 3-2 of the connecting piece 3 is embedded into the second clamping groove 5-1 of the driving shaft 5 on the actuator 4, and finally the box body 1 can be directly fixed on the actuator 4 by using screws, so that the bottom surface of the box body 1 is attached to the actuator 4, and the connecting piece 3, the connecting shaft 2 and the driving shaft 5 are sealed in the cavity 1-1, so that the connecting piece 3, the connecting shaft 2 and the driving shaft 5 are protected.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an angle travel switch box connection structure for be connected with executor (4), angle travel switch box includes box body (1) and rotates connecting axle (2) of establishing on box body (1), its characterized in that: the switch box connecting structure comprises a connecting piece (3) and a concave cavity (1-1) arranged on the bottom surface of a box body (1), wherein the concave cavity (1-1) is downward in opening, a connecting shaft (2) is positioned in the concave cavity (1-1), the top end of the connecting piece (3) is in transmission connection with the connecting shaft (2), the bottom end of the connecting piece (3) is in transmission connection with a driving shaft (5) of an actuator (4), the end part of the bottom end of the connecting piece (3) installed on the connecting shaft (2) is positioned in the concave cavity (1-1), and the connecting piece (3) and the driving shaft (5) of the actuator (4) are both sealed in the concave cavity (1-1) when the bottom surface of the box body (1) is attached to the actuator (4).

2. The angular travel switch box connection structure according to claim 1, wherein: the bottom end of the connecting shaft (2) protrudes downwards to form a first protrusion (2-1), the top end of the connecting piece (3) is recessed downwards to form a first clamping groove (3-1) matched with the first protrusion (2-1), and the first protrusion (2-1) is embedded into the first clamping groove (3-1).

3. The angular travel switch box connection structure according to claim 2, wherein: the cross section of the first clamping groove (3-1) is square.

4. The angular travel switch box connection structure according to claim 1, wherein: the top end of the driving shaft (5) is downwards sunken to form a second clamping groove (5-1), the bottom end of the connecting piece (3) is downwards protruded to form a second protrusion (3-2) matched with the second clamping groove (5-1), and the second protrusion (3-2) is embedded into the second clamping groove (5-1).

5. The angular travel switch box connection structure according to claim 4, wherein: the cross section of the second bulge (3-2) is square.

6. An angle travel switch box which is characterized in that: comprising the angular travel switch box connection structure as claimed in any one of claims 1 to 5.