Device capable of providing double in-place signals of corrugated pipe valve

Abstract

The utility model discloses a device capable of providing double in-place signals of a corrugated pipe valve, relates to the technical field of valves, and is mainly used for solving the problem that whether a valve head of an existing corrugated pipe valve moves to a designated position or not cannot be accurately judged through naked eyes, and opening and closing of the valve cannot be truly achieved. The lower end of the extension rod is connected with the upper end of a valve rod, and a metal top block which can synchronously move up and down along with the extension rod and is electrically connected with a power supply is arranged on one side of the extension rod; an upper spring ejector pin capable of making contact with the ejector block moving upwards to the highest point is arranged above the metal ejector block, a lower spring ejector pin capable of making contact with the ejector block moving downwards to the lowest point is arranged below the metal ejector block, the upper spring ejector pin is electrically connected with the first signal lamp, and the lower spring ejector pin is electrically connected with the second signal lamp. The utility model provides a device capable of providing double in-place signals of a corrugated pipe valve, and the device can accurately indicate whether the valve head moves in place or not through a signal lamp, so that the purpose of observing the opening and closing conditions of the valve by naked eyes is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a device capable of providing double-in-place signals for bellows valves. Background Art

[0002] The bellows sealed valve is a valve that controls the flow of gas and is often used in the vacuum field. In the prior art, the bellows sealed valve mainly drives the valve head at the bottom of the valve stem to open or block the channel by moving the valve stem up and down, thereby realizing the opening and closing of the valve.

[0003] However, for the existing bellows sealed valve, it is impossible to accurately judge by naked eyes whether the valve head has moved to the specified position and the valve is actually opened and closed, which will cause the problem of being unable to accurately control the gas flow in the valve. Utility Model Content

[0004] The utility model aims to provide a device capable of providing a double in-place signal for a bellows valve, which can accurately indicate whether the valve head has moved in place through a signal lamp, thereby achieving the purpose of visually observing the opening and closing of the valve.

[0005] The utility model solves the above-mentioned technical problem through a technical solution: a device capable of providing a double-in-position signal for a bellows valve, comprising an extension rod which is vertically arranged and whose lower end is connected to the upper end of a valve stem, wherein one side of the extension rod is provided with a metal top block which can move up and down synchronously with the extension rod and is electrically connected to a power supply; an upper spring ejector pin which can contact the ejector block which moves up to the highest point is provided above the metal top block, and a lower spring ejector pin which can contact the ejector block which moves down to the lowest point is provided below the metal top block, wherein the upper spring ejector pin is electrically connected to a first signal lamp, and the lower spring ejector pin is electrically connected to a second signal lamp.

[0006] As a further improvement of the utility model, it also includes an in-place signal fixing seat for fixing and installing the upper spring ejector and the lower spring ejector, the in-place signal fixing seat having a vertically extending ejector mounting groove on the side wall, and the metal ejector block is in the ejector mounting groove, the upper spring ejector is fixedly installed on the upper inner wall of the ejector mounting groove, and the lower spring ejector is fixedly installed on the upper inner wall of the ejector mounting groove.

[0007] As a further improvement of the present invention, the metal top block is transmission-connected to the extension rod via a linkage assembly.

[0008] As a further improvement of the present invention, the linkage assembly is a metal sleeve fixedly sleeved on the outside of the extension rod, and the metal top block is welded to the outer wall of the metal sleeve.

[0009] As a further improvement of the present invention, an insulating inner sleeve is provided between the inner wall of the metal sleeve and the outer wall of the extension rod.

[0010] As a further improvement of the present invention, the linkage assembly includes a metal connecting rod, one end of which is welded to the metal top block, and the other end is vertically swing-hinged to the upper end of a vertically arranged fixed rod. The metal connecting rod and the extension rod are connected through an extension rod connecting piece whose two ends are respectively vertically swing-hinged to the metal connecting rod and the extension rod.

[0011] As a further improvement of the present invention, a mounting seat is connected to the lower end of the fixing rod.

[0012] As a further improvement of the present invention, the mounting seat and the in-position signal fixing seat are both fixedly mounted on an upper surface of a horizontally arranged bottom plate, and the bottom plate is also provided with a through hole for the extension rod to pass through.

[0013] Beneficial Effects

[0014] Compared with the prior art, the advantages of the device of the utility model capable of providing a double in-position signal for a bellows valve are:

[0015] 1. To use this device, you need to install it on the bellows sealing valve and connect the lower end of the extension rod to the upper end of the valve stem of the valve. As the valve opens and closes, it will drive the valve stem to move up and down, so that the extension rod will also move up and down synchronously, thereby driving the metal top block to move. At the same time, the metal top block is externally connected to a power source, and when the metal top block moves up and down to the highest point or the lowest point, it will contact the upper spring ejector pin or the lower spring ejector pin respectively. Since the upper spring ejector pin and the lower spring ejector pin are electrically connected to the first signal light and the second signal light respectively, the metal top block contacts the spring ejector pin to form a closed loop, and the external signal light will light up accordingly. Therefore, by the flickering of the two external signal lights, it can be judged whether the valve head directly connected to the valve stem has moved into place, thereby achieving the purpose of visually observing the opening and closing of the valve, and then the gas flow in the valve can be accurately controlled.

[0016] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art 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 work.

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

[0019] Figure 2This is a cross-sectional view of the embodiment 1 of the utility model when in use;

[0020] Figure 3 A schematic structural diagram of Embodiment 2 of the present invention.

[0021] Among them: 1-in-place signal fixing seat; 11-thimble installation slot; 12-upper spring thimble; 13-lower spring thimble; 2-thrust block; 3-extension rod; 4-metal sleeve; 41-insulating inner sleeve; 5-metal connecting rod; 51-extension rod connecting piece; 52-fixing rod; 53-mounting seat; 54-bottom plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; of course, it can also be a mechanical connection or an electrical connection; in addition, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0025] Example 1

[0026] The specific implementation of the utility model is as follows Figure 1-2 As shown, a device capable of providing a double-position signal for a bellows valve comprises an extension rod 3 which is vertically arranged and whose lower end is connected to the upper end of a valve stem, and a metal top block 2 which can move up and down synchronously with the extension rod 3 and is electrically connected to a power source is provided on one side of the extension rod 3. The metal top block 2 is transmission-connected to the extension rod 3 through a linkage assembly. An upper spring ejector pin 12 which can contact the ejector block 2 which moves up to the highest point is provided above the metal top block 2, and a lower spring ejector pin 13 which can contact the ejector block 2 which moves down to the lowest point is provided below the metal top block 2. The upper spring ejector pin 12 is electrically connected to a first signal lamp, and the lower spring ejector pin 13 is electrically connected to a second signal lamp.

[0027] Before using the device, it is necessary to install it on the bellows sealed valve and connect the lower end of the extension rod 3 to the upper end of the valve stem of the valve. When using the device, as the valve opens and closes, the valve stem will move up and down, so that the extension rod 3 will also move up and down synchronously, thereby driving the metal top block 2 connected to the extension rod 3 to move.

[0028] In the device, since the metal top block 2 is externally connected to a power source, and when the metal top block 2 moves up and down to the highest point or the lowest point, it will contact the upper spring top pin 12 or the lower spring top pin 13 respectively; with the upper spring top pin 12 connected to the first signal light and the lower spring top pin 13 electrically connected to the second signal light, the metal top block 2 contacts the spring top pin, forming a closed loop, and the external signal light will light up. Therefore, through the flickering of the two external signal lights, it can be judged whether the valve head directly connected to the valve stem has moved into place, so as to achieve the purpose of visually observing the opening and closing of the valve, and then the gas flow in the valve can be accurately controlled.

[0029] In order to install the upper spring ejector pin 12 and the lower spring ejector pin 13, the device further includes an in-position signal fixing seat 1 for fixing and installing the upper spring ejector pin 12 and the lower spring ejector pin 13. Specifically, a vertically extending ejector mounting groove 11 is provided on the side wall of the in-position signal fixing seat 1, and the metal ejector block 2 is located in the ejector mounting groove 11. The upper spring ejector pin 12 is fixedly mounted on the upper inner wall of the ejector mounting groove 11, and the lower spring ejector pin 13 is fixedly mounted on the upper inner wall of the ejector mounting groove 11. When using the device, the in-position signal fixing seat 1 can be fixedly mounted on the bellows sealing valve by bolt locking.

[0030] At the same time, in order to achieve the synchronous movement of the metal top block 2 and the extension rod 3, the linkage assembly in this embodiment is a metal sleeve 4 fixedly sleeved on the outside of the extension rod 3, and the metal top block 2 is welded to the outer wall of the metal sleeve 4. Since the metal top block 2 is directly connected to the extension rod 3 through the metal sleeve 4, the movement of the extension rod 3 can be directly transmitted to the metal top block 2, thereby achieving the synchronous movement of the metal top block 2 and the extension rod 3.

[0031] In addition, in order to prevent the electric current from affecting the normal operation of the valve, an insulating inner sleeve 41 is provided between the inner wall of the metal sleeve 4 and the outer wall of the extension rod 3 .

[0032] Example 2

[0033] The difference between this embodiment and embodiment 1 is that: Figure 3As shown, the linkage assembly in this embodiment includes a metal connecting rod 5, one end of which is welded to the metal top block 2, and the other end is vertically swing-hinged to the upper end of a vertically arranged fixed rod 52. The metal connecting rod 5 is connected to the extension rod 3 through an extension rod connector 51, the two ends of which are vertically swing-hinged to the metal connecting rod 5 and the extension rod 3 respectively. When in use, the up and down movement of the extension rod 3 will be transmitted to the metal connecting rod 5 through the extension rod connector 51, so that the metal connecting rod 5 swings up and down with the upper end of the fixed rod 52 as the rotation center, and then the metal top block 5 on the other end of the metal connecting rod 5 moves up and down, realizing the synchronous movement of the metal top block 2 and the extension rod 3.

[0034] In order to fix the fixing rod 52 on the bellows sealed valve, a mounting seat 53 is connected to the lower end of the fixing rod 52. At the same time, the mounting seat 53 and the in-position signal fixing seat 1 are both fixedly mounted on the upper plate surface of a horizontally arranged bottom plate 54, and the bottom plate 54 is also provided with a through hole for the extension rod 3 to pass through. Therefore, the fixing rod 52 and the in-position signal fixing seat 1 can be installed and fixed on the bellows sealed valve by simply mounting the bottom plate 54 on the bellows sealed valve with locking bolts.

[0035] The present invention is described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A device capable of providing a double-position signal for a bellows valve, It is characterized in that The invention comprises an extension rod (3) which is arranged vertically and the lower end of which is connected to the upper end of the valve stem; a metal top block (2) which can move up and down synchronously with the extension rod (3) and is electrically connected to a power source is provided on one side of the extension rod (3); an upper spring ejector pin (12) which can contact the ejector block (2) when it moves up to the highest point is provided above the metal top block (2); and a lower spring ejector pin (13) which can contact the ejector block (2) when it moves down to the lowest point is provided below the metal top block (2); the upper spring ejector pin (12) is electrically connected to a first signal light, and the lower spring ejector pin (13) is electrically connected to a second signal light.

2. The device capable of providing a double in-position signal for a bellows valve according to claim 1, It is characterized in that It also comprises an in-position signal fixing seat (1) for fixing and installing an upper spring ejector pin (12) and a lower spring ejector pin (13); a vertically extending ejector pin installation groove (11) is provided on the side wall of the in-position signal fixing seat (1), and the metal ejector block (2) is located in the ejector pin installation groove (11); the upper spring ejector pin (12) is fixedly installed on the upper inner wall of the ejector pin installation groove (11), and the lower spring ejector pin (13) is fixedly installed on the upper inner wall of the ejector pin installation groove (11).

3. The device capable of providing a double-position signal for a bellows valve according to claim 1 or 2, It is characterized in that The metal top block (2) is transmission-connected to the extension rod (3) via a linkage assembly.

4. The device capable of providing a double in-position signal for a bellows valve according to claim 3, It is characterized in that The linkage assembly is a metal sleeve (4) fixedly sleeved on the outside of the extension rod (3), and the metal top block (2) is connected to the outer wall of the metal sleeve (4) by welding.

5. The device capable of providing a double-position signal for a bellows valve according to claim 4, It is characterized in that An insulating inner sleeve (41) is provided between the inner wall of the metal sleeve (4) and the outer wall of the extension rod (3).

6. The device capable of providing a double in-position signal for a bellows valve according to claim 3, It is characterized in that The linkage assembly comprises a metal connecting rod (5), one end of which is welded to the metal top block (2), and the other end of which is vertically swingably hinged to the upper end of a vertically arranged fixed rod (52); the metal connecting rod (5) and the extension rod (3) are connected via an extension rod connecting piece (51) whose two ends are respectively vertically swingably hinged to the metal connecting rod (5) and the extension rod (3).

7. The device capable of providing a double-position signal for a bellows valve according to claim 6, It is characterized in that The lower end of the fixing rod (52) is connected to a mounting seat (53).

8. The device capable of providing a double-position signal for a bellows valve according to claim 7, It is characterized in that The mounting seat (53) and the in-position signal fixing seat (1) are both fixedly mounted on the upper surface of a horizontally arranged bottom plate (54), and the bottom plate (54) is also provided with a through hole for the extension rod (3) to pass through.

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