Gate valve airtightness detection device

Abstract

The utility model provides a gate valve airtightness detection device, which belongs to the field of gate valve detection, aims to solve the problems of firm fixation and connection airtightness between a gate valve and a device, and comprises a detection platform. A fixed detection end is fixedly installed on the left side of the top end face of the detection platform, a movable detection end is slidably connected to the right side of the top end face of the detection platform, limiting tooth blocks are hinged to the left side wall and the right side wall of the movable detection end, a control screw is rotationally connected into the bottom end face of the detection platform, and a synchronous belt is connected to the front end of the control screw. A driving motor is fixedly mounted on the front side of the bottom of the detection platform; according to the gate valve airtightness detection device, the movable detection end is slidably connected in the limiting sliding groove of the detection platform through the limiting sliding block, the stability of the movable detection end during front and back movement can be guaranteed, the supporting force of the movable detection end is improved, and the sealing gasket connected through the fixing clamping ring is clamped in the sealing connection groove of the movable detection end, so that the sealing effect is improved. Therefore, the sealing washer is prevented from falling off when the gate valve is separated.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valve detection, in particular to a gate valve air tightness detection device. Background Art

[0002] The gate valve is a gate plate of an opening and closing part. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. In the gate valve production process, the semi-finished parts after the gate valve body and the gate valve cover are assembled need to be tested for air tightness. When the existing gate valve air tightness testing device is fixing the gate valve, since the distance between the two ports of different gate valves is different, it is necessary to ensure the sealing of the connection between the gate valve and the device while adjusting the distance to avoid affecting the test results. Since the air pressure is relatively high during the test, the sealing between the device and the gate valve is extremely tested. If the device is not fixed firmly enough, a gap is likely to appear between the gate valve and the device, causing deviations in the test results. Utility Model Content

[0003] The purpose of the utility model is to provide a gate valve air tightness detection device to solve the problem that the existing gate valve air tightness detection device proposed in the above background technology has different distances between the two ports of different gate valves and the air pressure is relatively large during detection, so it is necessary to ensure the sealing of the connection between the gate valve and the device while adjusting the distance to avoid affecting the detection result.

[0004] The purpose and effect of the gate valve air tightness detection device of the utility model are achieved by the following specific technical means:

[0005] A gate valve air tightness detection device, wherein the gate valve air tightness detection device includes a detection platform; a fixed detection end is fixedly installed on the left side of the top end surface of the detection platform, a mobile detection end is slidably connected to the right side of the top end surface of the detection platform, and limited tooth blocks are hinged on the left and right side walls of the mobile detection end. A control screw is rotatably connected in the bottom end surface of the detection platform, a synchronous belt is connected to the front end of the control screw, and a drive motor is fixedly installed on the bottom front side of the detection platform.

[0006] Furthermore, a rectangular guide groove is opened in the top end face of the detection platform, a triangular limiting groove is opened on the top of the left and right side walls of the guide groove, two limiting racks are symmetrically arranged on the outer side of the top of the guide groove, and a control screw is rotatably connected in the front and rear side walls of the guide groove, and a control gear is provided at the front end of the control screw.

[0007] Furthermore, the fixed detection end and the movable detection end are symmetrical in structure, an external thread connection port is provided at the top of the front side wall of the fixed detection end, a barometer is connected to the external thread connection port, and a sealing gasket is clamped on the right side wall of the fixed detection end.

[0008] Furthermore, a fixed plate is provided on the top of the front side of the mobile detection end, and six fixed protrusions are provided in a ring array on the front side wall of the fixed plate. A sealing connection groove is opened in the middle of the front side wall of the mobile detection end, and a fixed clamping ring arranged on one side of the sealing gasket is clamped in the sealing connection groove. An air connecting end is provided at the rear end of the mobile detection end, and a triangular limit slider is provided at the bottom of the left and right side walls of the mobile detection end. The limit slider is slidably connected in the limit slide groove of the detection platform, and two connecting shaft columns and tension spring connecting ends are symmetrically provided on the left and right side walls of the mobile detection end in an inclined state.

[0009] Furthermore, the limiting tooth block is symmetrically provided with two and the rear ends are connected by a "U"-shaped synchronization pull rod, the top of the limiting tooth block is hinged on the connecting shaft column at the top of the left and right side walls of the moving detection end, and a reset spring is connected to the lower side of the middle of the limiting tooth block, and the bottom of the reset spring is connected to the spring connecting end at the bottom of the left and right side walls of the moving detection end.

[0010] Furthermore, a driving gear is installed on the front end driving shaft of the driving motor, and the driving gear and the control gear on the control screw are connected through a synchronous belt.

[0011] The utility model provides a gate valve air tightness detection device, which has the following beneficial effects:

[0012] 1. The mobile detection end is slidably connected to the limit slide groove of the detection platform through a limit slider, which can ensure the stability of the mobile detection end when it moves back and forth, and improve the supporting force of the mobile detection end, so as to increase the stability when the gate valve is fixed, and a sealing gasket connected by a fixed clamp ring is clamped in the sealing connection groove of the mobile detection end, thereby preventing the sealing gasket from falling off when the gate valve is separated.

[0013] 2. When the mobile detection end slides forward, the limit tooth block will jump up and down as the mobile detection end moves forward under the action of the reset tension spring. When the mobile detection end adjusts its position according to the length of the gate valve and stops, the bottom end of the limit tooth block is clamped in the tooth groove of the limit rack to avoid a gap between the mobile detection end and the gate valve when detecting the air tightness of the gate valve, thereby preventing air leakage. When the mobile detection end needs to be separated, the mobile detection end continues to move forward a little, and the limit tooth block is pulled up by the synchronous pull rod to contact the limit. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model from the right front side axis view;

[0015] Figure 2 This is a schematic diagram of the overall split structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the front cutaway structure of the detection platform of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the right rear side axis of the detection platform of the utility model;

[0018] Figure 5 This is a schematic diagram of the cutaway structure of the mobile detection end of the utility model;

[0019] Figure 6 It is a schematic diagram of the overall cutaway structure of the detection platform of the utility model.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 1. Detection platform; 101. Guide slide; 102. Limit slide; 103. Limit rack; 2. Fixed detection end; 201. External thread connection port; 3. Barometer; 4. Sealing gasket; 401. Fixed clamp ring; 5. Mobile detection end; 501. Fixed disk; 502. Fixed protrusion; 503. Sealing connection groove; 504. Air connection end; 505. Limit slider; 506. Connecting shaft column; 507. Tension spring connection end; 6. Limit tooth block; 601. Synchronous pull rod; 7. Reset tension spring; 8. Control screw; 801. Control gear; 9. Synchronous belt; 10. Drive motor; 1001. Drive gear. DETAILED DESCRIPTION

[0022] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0023] Embodiment 1:

[0024] As attached Figure 1 To Attachment Figure 6 As shown:

[0025] The utility model provides a gate valve air tightness detection device, comprising: a detection platform 1; a fixed detection end 2 is fixedly installed on the left side of the top end surface of the detection platform 1, a mobile detection end 5 is slidably connected to the right side of the top end surface of the detection platform 1, and a limited tooth block 6 is hinged on the left and right side walls of the mobile detection end 5; a control screw 8 is rotatably connected in the bottom end surface of the detection platform 1, and a synchronous belt 9 is connected to the front end of the control screw 8; a driving motor 10 is fixedly installed on the front side of the bottom of the detection platform 1; a rectangular guide slot 101 is opened in the top end surface of the detection platform 1, and a triangular limiting slot 102 is opened on the top of the left and right side walls of the guide slot 101, and two limiting racks 1 are symmetrically arranged on the outer side of the top of the guide slot 101 03. A control screw 8 is rotatably connected in the front and rear side walls of the guide slot 101. A control gear 801 is provided at the front end of the control screw 8. A drive gear 1001 is installed on the front end drive shaft of the drive motor 10. The drive gear 1001 and the control gear 801 on the control screw 8 are connected through a synchronous belt 9. When in use, the drive gear 1001 on the drive shaft of the drive motor 10 cooperates with the synchronous belt 9 and the control gear 801 on the control screw 8 to control the mobile detection end 5 to slide back and forth in the guide slot 101, so that the position of the mobile detection end 5 can be adjusted according to the overall length of the gate valve to be detected, so as to better connect the interfaces at both ends of the gate valve, so as to improve the adaptability of the detection device.

[0026] Among them, the fixed detection end 2 and the movable detection end 5 are symmetrical in structure, and an externally threaded connection port 201 is provided on the top of the front side wall of the fixed detection end 2, and a barometer 3 is connected to the externally threaded connection port 201, and a sealing gasket 4 is clamped on the right side wall of the fixed detection end 2. When in use, the fixed detection end 2 and the movable detection end 5 can cooperate to fix the connecting ends of the gate valve, thereby ensuring the stability of the gate valve during detection and facilitating the fixing of the gate valve. In addition, the connection between the externally threaded connection port 201 on the front side of the fixed detection end 2 and the barometer 3 facilitates the replacement operation of the barometer 3 with different measurements, so as to perform detections with different effects.

[0027] Among them, a fixing plate 501 is provided at the top of the front side of the mobile detection end 5, six fixing protrusions 502 are provided in a ring array on the front side wall of the fixing plate 501, a sealing connection groove 503 is opened in the middle of the front side wall of the mobile detection end 5, a fixing clamping ring 401 provided on one side of the sealing gasket 4 is clamped in the sealing connection groove 503, an air receiving end 504 is provided at the rear end of the mobile detection end 5, and a triangular limiting slider 505 is provided at the bottom of the left and right side walls of the mobile detection end 5, and the limiting slider 505 is slidably connected in the limiting slide groove 102 of the detection platform 1, and the mobile detection Two connecting shaft columns 506 and tension spring connecting ends 507 are symmetrically arranged on the left and right side walls of the end 5 in an inclined shape. When in use, the mobile detection end 5 is slidably connected to the limiting slide groove 102 of the detection platform 1 through the limiting slider 505, which can ensure the stability of the mobile detection end 5 when moving back and forth, and improve the supporting force of the mobile detection end 5, so as to increase the stability when fixing the gate valve, and the sealing connection groove 503 of the mobile detection end 5 is clamped with a sealing gasket 4 connected by a fixed clamping ring 401, so as to avoid the sealing gasket 4 from falling off when the gate valve is separated.

[0028] Among them, the limit tooth block 6 is symmetrically provided with two and the rear end is connected by a "U"-shaped synchronous pull rod 601. The top of the limit tooth block 6 is hinged on the connecting shaft column 506 at the top of the left and right side walls of the moving detection end 5. A reset spring 7 is connected to the lower side of the middle of the limit tooth block 6. The bottom of the reset spring 7 is connected to the spring connecting end 507 at the bottom of the left and right side walls of the moving detection end 5. When in use, when the moving detection end 5 slides forward, the limit tooth block 6 will jump up and down with the forward movement of the moving detection end 5 under the action of the reset spring 7. When the moving detection end 5 adjusts its position according to the length of the gate valve and stops, the bottom end of the limit tooth block 6 is clamped in the tooth groove of the limit rack 103 to avoid a gap between the moving detection end 5 and the gate valve when detecting the air tightness of the gate valve, thereby preventing air leakage. When the moving detection end 5 needs to be separated, the moving detection end 5 continues to move forward a little, and the limit tooth block 6 is pulled up by the synchronous pull rod 601 to contact the limit.

[0029] The specific usage and function of this embodiment are as follows:

[0030] When using the gate valve air tightness detection device, first align one end of the gate valve with the rear side wall of the fixed detection end 2, and then control the mobile detection end 5 to slide back and forth in the guide groove 101 by driving the driving gear 1001 on the driving shaft of the driving motor 10 in cooperation with the synchronous belt 9 and the control gear 801 on the control screw 8, so as to adjust the position of the mobile detection end 5 according to the overall length of the gate valve to be detected. At the same time, when the mobile detection end 5 slides forward, the limit tooth block 6 will jump up and down with the forward movement of the mobile detection end 5 under the action of the reset spring 7. When the mobile detection end 5 adjusts its position according to the length of the gate valve and stops, the bottom end of the limit tooth block 6 is clamped in the tooth groove of the limit rack 103 to avoid a gap between the mobile detection end 5 and the gate valve when detecting the air tightness of the gate valve. When the mobile detection end 5 needs to be separated, the mobile detection end 5 continues to move forward a little, and the limit tooth block 6 is pulled up by the synchronous pull rod 601 to contact the limit.

[0031] Embodiment 2:

[0032] By connecting the synchronous pull rod 601 of the limit gear block 6 with the electric cylinder, the stretching amplitude of the limit gear block 6 can be controlled by the electric cylinder, so as to realize automatic control.

Claims

1. A gate valve air tightness detection device, characterized in that: The invention comprises a detection platform (1); a fixed detection end (2) is fixedly installed on the left side of the top end surface of the detection platform (1); a mobile detection end (5) is slidably connected to the right side of the top end surface of the detection platform (1); a limit tooth block (6) is hinged on the left and right side walls of the mobile detection end (5); a control screw (8) is rotatably connected to the bottom end surface of the detection platform (1); a synchronous belt (9) is connected to the front end of the control screw (8); and a driving motor (10) is fixedly installed on the front side of the bottom of the detection platform (1).

2. A gate valve air tightness detection device according to claim 1, characterized in that: A rectangular guide slot (101) is provided in the top end surface of the detection platform (1), triangular limiting slots (102) are provided on the tops of the left and right side walls of the guide slot (101), two limiting racks (103) are symmetrically provided on the outer side of the top of the guide slot (101), a control screw (8) is rotatably connected to the front and rear side walls of the guide slot (101), and a control gear (801) is provided at the front end of the control screw (8).

3. A gate valve air tightness detection device according to claim 1, characterized in that: The fixed detection end (2) and the movable detection end (5) are symmetrical in structure. An external thread connection port (201) is provided at the top of the front side wall of the fixed detection end (2). A barometer (3) is connected to the external thread connection port (201). A sealing gasket (4) is clamped on the right side wall of the fixed detection end (2).

4. A gate valve air tightness detection device according to claim 1, characterized in that: The front top of the mobile detection end (5) is provided with a fixed disk (501), and the front side wall of the fixed disk (501) is provided with six fixed protrusions (502) in a ring array. A sealing connection groove (503) is opened in the middle of the front side wall of the mobile detection end (5), and a fixed clamping ring (401) arranged on one side of the sealing gasket (4) is clamped in the sealing connection groove (503). The rear end of the mobile detection end (5) is provided with an air connection end (504), and the bottom of the left and right side walls of the mobile detection end (5) are provided with triangular limit sliders (505), and the limit sliders (505) are slidably connected to the limit slide groove (102) of the detection platform (1). Two connecting shaft columns (506) and tension spring connecting ends (507) are symmetrically arranged on the left and right side walls of the mobile detection end (5) in an inclined shape.

5. The gate valve air tightness detection device according to claim 1, characterized in that: The limiting tooth block (6) is symmetrically provided with two and the rear ends are connected by a "U"-shaped synchronous pull rod (601), the top of the limiting tooth block (6) is hinged on the connecting shaft column (506) at the top of the left and right side walls of the moving detection end (5), and the lower side of the middle of the limiting tooth block (6) is connected to a reset spring (7), and the bottom of the reset spring (7) is connected to the spring connecting end (507) at the bottom of the left and right side walls of the moving detection end (5).

6. A gate valve air tightness detection device according to claim 1, characterized in that: A driving gear (1001) is installed on the front end driving shaft of the driving motor (10), and the driving gear (1001) and the control gear (801) on the control screw (8) are connected via a synchronous belt (9).

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