Flow control instrument with safety interlocking function

Abstract

The utility model discloses a flow control instrument with a safety interlocking function, which comprises a control instrument body, a locking groove, a closing mechanism arranged on one side of the control instrument body and an interlocking mechanism arranged in the locking groove, and the closing mechanism comprises a supporting door, a lock cylinder, a first locking groove and a second locking groove. The lock cylinder is installed on the side, close to the control instrument body, of the supporting door, the lock cylinder is rotationally installed on the side, close to the control instrument body, of the supporting door, the first lock groove and the second lock groove both penetrate through the upper end and the lower end of the lock cylinder, and the interlocking mechanism comprises an arc-shaped locking plate, a rotary connecting plate, a limiting bolt, a limiting ring, a connecting frame, a locking column and a kidney-shaped hole. The rotating connecting plate is installed at the upper end of the arc-shaped locking plate and penetrates through the upper end and the lower end of the rotating connecting plate. Under the support of the interlocking mechanism, the movable closing mechanism and the control instrument body are closed and limited for multiple times, so that the effect of performing multi-layer safe closing protection on the control instrument body is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of process controllers, and particularly relates to a process controller with a safety interlock function. Background Art

[0002] A process controller generally refers to an electronic instrument used in the field of industrial automation to measure, control, and adjust various physical quantities such as temperature, pressure, flow rate, etc.

[0003] The internal parts of the process controller are relatively precise. Therefore, during actual use, timely protection is required. However, the locking structure of the existing protection device can generally only perform single-layer locking and cannot perform multi-layer interlocking, resulting in the device being easily forced open and affecting its safety during use. Summary of the Invention

[0004] In view of the problem of the lack of an interlock function in the prior art, the utility model proposes the following technical solutions:

[0005] A process controller with a safety interlock function includes a controller body, a locking groove, a closing mechanism installed on one side of the controller body, and an interlock mechanism arranged inside the locking groove.

[0006] The closing mechanism includes a support door, a lock core, a first lock groove, and a second lock groove. The lock core is installed on the side of the support door close to the controller body, the lock core is rotatably installed on one side of the controller body, and both the first lock groove and the second lock groove penetrate through the upper and lower ends of the lock core.

[0007] The interlock mechanism includes an arc-shaped locking plate, a rotating connecting plate, a limiting bolt, a limiting ring, a connecting frame, a locking column, and a waist-shaped hole. The rotating connecting plate is installed at the upper end of the arc-shaped locking plate, the rotating connecting plate penetrates through the upper and lower ends of the rotating connecting plate, the limiting bolt is inserted into the rotating connecting plate, the limiting ring is installed on the upper half of the outer side of the limiting bolt, the connecting frame is fixedly connected to the lower half of the outer side of the limiting bolt, and the locking column is installed on the upper surface of the lower end of the connecting frame.

[0008] Wherein, the arc-shaped locking plate is inserted into the first lock groove, the locking column is inserted into the second lock groove, and the arc-shaped locking plate is rotatably arranged inside one side of the controller body.

[0009] Supported by the interlock mechanism, the mobile closing mechanism and the controller body are closed and limited multiple times to achieve the effect of multi-layer safety closing protection for the controller body.

[0010] As a preference of the above technical solution, there are at least two lock cores, and the connection methods of the two lock cores are the same, and the two lock cores are at different heights.

[0011] With the support of two lock cores, the multi-layer interlocking function of the device is further improved.

[0012] As a preference of the above technical solution, the limit bolt is located above the locking column, and the limit bolt and the locking column are located on the same side of the connecting frame.

[0013] Under the connection of the connecting frame, the limit bolt and the locking column are driven to move simultaneously.

[0014] As a preference of the above technical solution, the interlocking mechanism further includes a fixed rod, an engaging groove, an engaging wheel, and a control lock. The engaging groove is formed in the lower half of the outer side of the fixed rod. The engaging wheel is engaged with the engaging groove. The control lock is installed on the outer surface of the engaging wheel, and the control lock is inserted into the control instrument body, and the fixed rod is installed on the lower end surface of the fixed rod.

[0015] Under the meshing connection of the engaging groove, the effect of moving the fixed rod in height is achieved, thereby driving the connecting frame to move.

[0016] As a preference of the above technical solution, the interlocking mechanism includes a connecting rod. The connecting rod is installed at the upper end of the fixed rod, and connecting frames are installed at both opposite ends of the fixed rod.

[0017] Under the transmission of the connecting rod, by controlling the movement of the lower connecting frame, the upper and lower connecting frames can be driven to move simultaneously, facilitating the control of the opening and closing of the device.

[0018] As a preference of the above technical solution, the number of the arc-shaped locking plates, the rotating connecting plates, the first locking grooves, and the second locking grooves is the same, and the two lock cores operate simultaneously.

[0019] By setting both the plugging and closing devices in duplicate, the stability of the device during interlocking closing is improved.

[0020] The beneficial effects of the present utility model are as follows:

[0021] (1) With the support of the interlocking mechanism, the moving closing mechanism and the control instrument body are closed and limited multiple times, achieving the effect of multi-layer safety closing protection for the control instrument body;

[0022] (2) By rotating the control lock, the engaging wheel is driven to rotate simultaneously. Under the meshing connection of the engaging groove, the effect of moving the fixed rod in height is achieved, thereby driving the connecting frame to move, achieving the movement control of the clamping and limiting components, and ensuring the stability of the overall closing of the device and the accuracy during opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 What is shown is a three-dimensional view of the overall device;

[0024] Figure 2 Shows a perspective view of the lower half of the device;

[0025] Figure 3 Shows a connection diagram of the upper and lower interlocking mechanisms;

[0026] Figure 4 Shows a perspective view of the interlocking mechanism.

[0027] In the figure: 1. Control instrument body; 101. Locking groove; 2. Support door; 201. Lock core; 202. First lock groove; 203. Second lock groove; 3. Arc-shaped locking plate; 301. Rotating connection plate; 302. Limit bolt; 303. Limit ring; 304. Connection frame; 305. Locking column; 306. Fixed rod; 307. Meshing groove; 308. Meshing wheel; 309. Control lock; 310. Waist hole; 311. Connecting rod. Specific embodiments

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0029] Embodiment

[0030] Figures 1 - 4 Shows a schematic diagram of the overall structure as a specific embodiment of the present utility model. Figures 1 - 4 Among them, a process control instrument with a safety interlocking function includes a control instrument body 1, a locking groove 101, a closing mechanism installed on one side of the control instrument body 1, and an interlocking mechanism arranged inside the locking groove 101.

[0031] The closing mechanism includes a support door 2, a lock core 201, a first lock groove 202, and a second lock groove 203. The lock core 201 is installed on the side of the support door 2 close to the control instrument body 1. The lock core 201 is rotatably installed on one side of the control instrument body 1. Both the first lock groove 202 and the second lock groove 203 penetrate through the upper and lower ends of the lock core 201.

[0032] The interlocking mechanism includes an arc-shaped locking plate 3, a rotating connection plate 301, a limit bolt 302, a limit ring 303, a connection frame 304, a locking column 305, and a waist hole 310. The rotating connection plate 301 is installed at the upper end of the arc-shaped locking plate 3. The rotating connection plate 301 penetrates through the upper and lower ends of the rotating connection plate 301. The limit bolt 302 is inserted into the rotating connection plate 301. The limit ring 303 is installed on the upper half of the outer side of the limit bolt 302. The connection frame 304 is fixedly connected to the lower half of the outer side of the limit bolt 302. The locking column 305 is installed on the upper surface of the lower end of the connection frame 304.

[0033] Among them, the arc-shaped locking plate 3 is inserted into the first locking groove 202, the locking column 305 is inserted into the second locking groove 203, and the arc-shaped locking plate 3 is rotatably arranged inside one side of the control instrument body 1.

[0034] Through the moving closing mechanism, supported by the interlocking mechanism, the moving closing mechanism and the control instrument body 1 are subjected to multiple closing limit positions, achieving the effect of safely closing and protecting the control instrument body 1. Specifically, by moving the moving support door 2, driving the lock core 201 to move towards the control instrument body 1 at the same time, so that the lock core 201 is inserted into the locking groove 101. After the support door 2 contacts the surface of the control instrument body 1, the control connecting frame 304 moves upward, so that the locking column 305 moves upward and is inserted into the second locking groove 203. At the same time, the limit bolt 302 drives the rotating connecting plate 301 to move upward. Under the rotation of the arc-shaped locking plate 3, the arc-shaped locking plate 3 moves downward into the first locking groove 202, so that the first locking groove 202 and the second locking groove 203 are both limited, achieving the effect of limiting the lock core 201, thereby achieving the effect of limiting the support door 2, closing the control instrument body 1, and playing a role in protecting the device.

[0035] Figure 1 and Figure 3 Shown is a schematic diagram of the interlocking structure as a specific embodiment of the present invention. Figure 1 and Figure 3 In [the figure], there are at least two lock cores 201, and the connection methods of the two lock cores 201 are the same, and the two lock cores 201 are at different heights.

[0036] With the support of the two lock cores 201 and the setting of corresponding limit assistance mechanisms, the overall limit effect of the device is improved, the multi-layer interlocking function of the device is further improved, and the safety of the device is effectively guaranteed.

[0037] Figure 4 Shown is a three-dimensional structure schematic diagram of the interlocking mechanism as a specific embodiment of the present invention. Figure 4 In [the figure], the limit bolt 302 is located above the locking column 305, and the limit bolt 302 and the locking column 305 are located on the same side of the connecting frame 304.

[0038] Under the connection of the connecting frame 304, driving the limit bolt 302 and the locking column 305 to move simultaneously, and setting the limit bolt 302 and the locking column 305 at different heights, further ensuring the accuracy of their moving and engaging, and ensuring the overall connection stability of the device.

[0039] Figure 4 Shown is a schematic diagram of the control method structure as a specific embodiment of the present invention. Figure 4Among them, the interlocking mechanism further includes a fixed rod 306, an engaging groove 307, an engaging wheel 308, and a control lock 309. The engaging groove 307 is formed in the lower half of the outer side of the fixed rod 306. The engaging wheel 308 is engaged with the engaging groove 307. The control lock 309 is installed on the outer surface of the engaging wheel 308, and the control lock 309 is inserted into the control instrument body 1. And the fixed rod 306 is installed on the lower end surface of the fixed rod 306.

[0040] By rotating the control lock 309, the engaging wheel 308 is driven to rotate simultaneously. Under the meshing connection of the engaging groove 307, the effect of moving the fixed rod 306 in height is achieved, thereby driving the connecting frame 304 to move, achieving the movement control of the clamping and limiting components, and ensuring the stability of the overall closing of the device and the accuracy when opening.

[0041] Figure 3 Shown is a schematic diagram of the overall interlocking structure as a specific embodiment of the present invention. Figure 3 Among them, the interlocking mechanism includes a connecting rod 311. The connecting rod 311 is installed at the upper end of the fixed rod 306, and connecting frames 304 are installed at both opposite ends of the fixed rod 306.

[0042] The number of the arc-shaped locking plates 3, the rotating connecting plates 301, the first locking groove 202, and the second locking groove 203 is the same, and the two lock cores 201 operate simultaneously.

[0043] Under the transmission of the connecting rod 311, by controlling the movement of the lower connecting frame 304, the upper and lower connecting frames 304 can be driven to move simultaneously, thereby controlling the simultaneous movement of the two interlocking mechanisms, achieving the effect of conveniently controlling the movement of the device, thus facilitating the control of the opening and closing of the device. And by setting both the plugging and closing devices in duplicate, the stability of the interlocking closing of the device is improved, thereby further enhancing the safety when the device is closed.

[0044] Working principle: First, rotate the control lock 309 to drive the engaging wheel 308 to rotate simultaneously. Under the meshing connection of the engaging groove 307, the fixed rod 306 is moved in height. Under the connection of the connecting frame 304, the limiting bolt 302 and the locking column 305 are driven to move simultaneously, causing the first locking groove 202 to contract and the locking column 305 to move downward, making the interlocking mechanism in a contracted state. Then close the support door 2, insert the lock core 201 into the locking groove 101. Rotate the control lock 309 in the reverse direction again, so that the arc-shaped locking plate 3 and the locking column 305 move in the reverse direction, simultaneously plugging the first locking groove 202 and the second locking groove 203, achieving the limitation of the lock core 201, thereby achieving the simultaneous limitation of the support door 2. And under the connection of the connecting rod 311, the two lock cores 201 are simultaneously limited, achieving the effect of stable limitation of the support door 2.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A process control instrument with a safety interlocking function, comprising a control instrument body (1), a locking groove (101), a closing mechanism installed on one side of the control instrument body (1), and an interlocking mechanism arranged inside the locking groove (101), characterized in that: The closing mechanism comprises a supporting door (2), a lock core (201), a first lock slot (202), and a second lock slot (203); the lock core (201) is mounted on a side of the supporting door (2) close to the control instrument body (1); the lock core (201) is rotatably mounted on one side of the control instrument body (1); the first lock slot (202) and the second lock slot (203) both pass through the upper and lower ends of the lock core (201); The interlocking mechanism comprises an arc-shaped locking plate (3), a rotating connecting plate (301), a limiting bolt (302), a limiting ring (303), a connecting frame (304), a locking column (305), and a waist hole (310); the rotating connecting plate (301) is installed on the upper end of the arc-shaped locking plate (3); the rotating connecting plate (301) passes through the upper and lower ends of the rotating connecting plate (301); the limiting bolt (302) is plugged into the rotating connecting plate (301); the limiting ring (303) is installed on the upper outer half of the limiting bolt (302); the connecting frame (304) is fixedly connected to the lower outer half of the limiting bolt (302); and the locking column (305) is installed on the upper surface of the lower end of the connecting frame (304); The arc-shaped locking plate (3) is plugged into the first locking groove (202), the locking column (305) is plugged into the second locking groove (203), and the arc-shaped locking plate (3) is rotatably arranged inside one side of the control instrument body (1).

2. The process controller with safety interlocking function according to claim 1, characterized in that: There are at least two lock cores (201), and the connection methods of the two lock cores (201) are consistent, and the two lock cores (201) are located at different heights.

3. The process controller with safety interlocking function according to claim 1, characterized in that: The limiting bolt (302) is located above the locking column (305), and the limiting bolt (302) and the locking column (305) are located on the same side of the connecting frame (304).

4. The process controller with safety interlocking function according to claim 1, characterized in that: The interlocking mechanism further comprises a fixed rod (306), an engagement groove (307), an engagement wheel (308), and a control lock (309); the engagement groove (307) is arranged at the lower half of the outer side of the fixed rod (306); the engagement wheel (308) is meshedly connected with the engagement groove (307); the control lock (309) is installed on the outer side surface of the engagement wheel (308); the control lock (309) is plugged into the control instrument body (1); and the fixed rod (306) is installed on the lower end surface of the fixed rod (306).

5. The process controller with safety interlocking function according to claim 4, characterized in that: The interlocking mechanism comprises a connecting rod (311), the connecting rod (311) is installed on the upper end of the fixing rod (306), and connecting frames (304) are installed on opposite ends of the fixing rod (306).

6. The process controller with safety interlocking function according to claim 1, characterized in that: The arc-shaped locking plate (3), the rotating connecting plate (301), the first locking groove (202) and the second locking groove (203) are consistent in number, and the two lock cores (201) operate simultaneously.

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