Diaphragm valve fixing tool

Abstract

This utility model relates to the field of fixing fixture technology, specifically a diaphragm valve fixing fixture, comprising two symmetrically spliced ​​fixing seats. Each fixing seat has two threaded sleeves connected to its surface, and each threaded sleeve has a retractable threaded rod connected to its bottom end. Each threaded rod has a connector connected to its bottom end, and each connector is connected to a support seat via a ball joint. The support seat has a fixing component for locking the ball joint on its surface. Each support seat has a first friction pad fixedly connected to its bottom end. The threaded sleeves are rotatably connected to the fixing seats. A positioning ring is coaxially fixedly connected to the surface of each threaded sleeve, and the positioning ring is rotatably connected to the fixing seat. The purpose of this utility model is to solve the problem that traditional diaphragm valve fixing fixtures have stringent requirements for the flatness of the installation surface and weak overall adaptability.

Description

Technical Field

[0001] This utility model relates to the field of fixing fixture technology, specifically a fixing fixture for diaphragm valves. Background Technology

[0002] During the installation, commissioning, and maintenance of diaphragm valves, fixing fixtures are required. If the valve body is directly squeezed by the tightening force of the pipe threads during installation, the valve body flange may deform due to uneven stress, especially for non-metallic valve bodies such as plastic and cast iron. This can affect the sealing performance of the diaphragm. Fixing the valve body in a specific position with fixtures helps to position the valve body, preventing deformation due to uneven stress, and assists in precise alignment between the valve body and the pipeline, reducing installation errors. Furthermore, the diaphragm of the diaphragm valve is a vulnerable component; replacement requires removing the valve body cover. Fixing the valve body with fixtures before disassembly ensures its stability during maintenance, facilitating safe removal of the old diaphragm and precise installation of the new diaphragm. This avoids installation errors caused by valve body movement and is a crucial step in ensuring the long-term reliable operation of the diaphragm valve.

[0003] Traditional diaphragm valve fixtures have strict requirements for the flatness of the mounting surface, resulting in poor overall adaptability. They lack sufficient adjustment space when facing mounting surfaces with different flatness. Once in an uneven mounting surface environment, it is difficult to keep the valve body stable and level, and the positioning effect often becomes unstable. Utility Model Content

[0004] The purpose of this invention is to provide a diaphragm valve fixing fixture to solve the problem that traditional diaphragm valve fixing fixtures have strict requirements on the flatness of the installation surface and have weak overall adaptability.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A diaphragm valve fixing fixture includes two symmetrically spliced ​​fixing seats. Each fixing seat has two threaded sleeves connected to its surface. Each threaded sleeve has a retractable threaded rod connected to its bottom end. Each threaded rod has a connector connected to its bottom end. Each connector is connected to a support seat via a ball joint. The surface of the support seat is provided with a fixing component for locking the ball joint. Each support seat has a first friction pad fixedly connected to its bottom end.

[0007] Preferably, the threaded sleeve and the fixed base are rotatably connected, and a positioning ring is coaxially fixedly connected to the surface of the threaded sleeve, and the positioning ring and the fixed base are rotatably connected.

[0008] Preferably, the threaded sleeve and the threaded rod are coaxially threaded.

[0009] Preferably, each of the threaded sleeves is coaxially fixedly connected to a driven bevel gear at its top end, and two driving bevel gears are rotatably connected inside the fixed base, each meshing with a corresponding driven bevel gear. A transmission rod is coaxially fixedly connected between the two driving bevel gears, and a knob is coaxially fixedly connected to the surface of the transmission rod.

[0010] Preferably, a T-shaped shaft is coaxially fixedly connected to the top end of the connector, and the T-shaped shaft and the threaded rod are rotatably connected.

[0011] Preferably, the surface of the threaded rod is threaded with a locking pin for locking the T-shaped shaft, and the end of the locking pin is fixedly connected with a second friction pad.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The tooling can automatically adapt to the flatness difference of the mounting surface by adjusting the extension and retraction of the threaded rod and connecting it to the ball joint. When there is a height difference on the mounting surface, the higher side support is first adjusted to a vertical position and locked by the ball joint, and then the lower side threaded rod is extended separately to ground it, so that the overall level of the fixed seat is achieved. This design avoids the strict requirements of traditional tooling on the flatness of the mounting surface.

[0014] 2. The tooling adopts a bevel gear transmission system and a knob linkage design. Rotating the knob can synchronously drive the threaded rods on both sides to extend and retract at the same speed, realizing rapid adjustment of the overall height. At the same time, by loosening or tightening the locking pin, the ungrounded support can be adjusted individually, which solves the tedious problem of traditional tooling requiring adjustment of support points one by one. For example, when one support is not fully in contact with the mounting surface, it is only necessary to hold the support and tighten the locking pin to achieve precise fine adjustment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the fixing base of this utility model;

[0017] Figure 3 This is a cross-sectional schematic diagram of the threaded sleeve of this utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the threaded rod of this utility model.

[0019] In the diagram: 1. Fixed seat; 2. Fixed groove; 3. Knob; 4. Transmission rod; 5. Driving bevel gear; 6. Driven bevel gear; 7. Threaded sleeve; 8. Positioning ring; 9. Threaded rod; 10. T-shaft; 11. Connector; 12. Support seat; 13. First friction pad; 14. Locking pin. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a diaphragm valve fixing fixture, including two symmetrically spliced ​​fixing seats 1. Each fixing seat 1 has a fixing groove 2 at its top, and the two fixing grooves 2 together form a positioning cavity for the diaphragm valve body to be embedded. Each fixing seat 1 has two threaded sleeves 7 connected to its surface, and each threaded sleeve 7 has a telescopic threaded rod 9 connected to its bottom end. Each threaded rod 9 has a connector 11 connected to its bottom end, and each connector 11 is connected to a support seat 12 via a ball joint. The surface of the support seat 12 is provided with a fixing component for locking the ball joint, allowing the support seat 12 to tilt in any direction. After the angle is determined, it is locked by the fixing component. The bottom end of each support seat 12 is fixedly connected to... A first friction pad 13 is provided to increase the friction with the mounting surface. The telescopic threaded rod 9 can be adjusted according to the flatness of the mounting surface to keep the two fixed seats 1 horizontal. Specifically, the two support seats 12 are first placed on the mounting surface. Through the ball joint between the connector 11 and the support seat 12, the threaded rod 9 corresponding to the higher position of the mounting surface is first adjusted to a vertical position. At this time, the fixed seat 1 is also in a horizontal position. Then the ball joint is locked. Next, the support seat 12 at the lower position of the mounting surface is supported, and its corresponding threaded sleeve 7 is rotated to extend the threaded rod 9 until the bottom surface of the support seat 12 is in contact with the mounting surface. Finally, the ball joint is locked, so that the fixed fixture can provide horizontal support for the diaphragm valve body.

[0022] The threaded sleeve 7 is rotatably connected to the fixed base 1. A positioning ring 8 is coaxially fixedly connected to the surface of the threaded sleeve 7. The positioning ring 8 is rotatably connected to the fixed base 1. The positioning ring 8 can limit the axial displacement of the threaded sleeve 7, allowing it to rotate only around its own axis. The threaded sleeve 7 and the threaded rod 9 are coaxially threaded. Therefore, by rotating the threaded sleeve 7, the axial extension and retraction of the threaded rod 9 can be controlled.

[0023] Each threaded sleeve 7 has a driven bevel gear 6 coaxially fixedly connected to its top end. Two driving bevel gears 5 are rotatably connected inside the fixed base 1, meshing with the corresponding driven bevel gears 6. A transmission rod 4 is coaxially fixedly connected between the two driving bevel gears 5. A knob 3 is coaxially fixedly connected to the surface of the transmission rod 4. The knob 3 is exposed on the surface of the fixed base 1. Rotating the knob 3 can drive the transmission rod 4 to rotate, thereby driving the driving bevel gears 5 to rotate. The driving bevel gears 5 drive the driven bevel gears 6 and the threaded sleeves 7 to rotate synchronously through meshing, so that the threaded sleeves 7 can rotate synchronously. By adapting the thread winding direction of the two threaded sleeves 7 and the threaded rods 9, the two threaded rods 9 can be synchronously extended and retracted in the same direction when the knob 3 is rotated.

[0024] A T-shaped shaft 10 is coaxially fixedly connected to the top of the connector 11. The T-shaped shaft 10 and the threaded rod 9 are rotatably connected, allowing the connector 11 to rotate relative to the threaded rod 9. A locking pin 14 for locking the T-shaped shaft 10 is threadedly connected to the surface of the threaded rod 9. A second friction pad is fixedly connected to the end of the locking pin 14. Tightening the locking pin 14 allows it to abut against the T-shaped shaft 10 through the second friction pad, thereby restricting the rotation of the T-shaped shaft 10. This method can also be used to lock the ball joint. With this configuration, when the support 12 is not fully grounded, the locking pin 14 corresponding to the threaded rod 9 is released. At this time, the threaded sleeve 7 and the threaded rod 9 are engaged by the self-locking force of the threads. If no external force is applied to fix the threaded rod 9, the rotation of the threaded sleeve 7 will drive the threaded rod 9 to rotate synchronously. When the support seat 12 is grounded, it will remain in contact with the mounting surface and will not rotate with the threaded rod 9 due to the friction between the support seat 12 and the mounting surface. At this time, you only need to hold the ungrounded support seat 12 and tighten its corresponding locking pin 14 to adjust the extension and retraction of the threaded rod 9 individually, so as to realize the grounding adjustment of a single support seat 12. When both support seats 12 are grounded, tighten the locking pins 14 on both sides, and the threaded rod 9 and the support seat 12 will form a rigid connection. At this time, the friction between the support seat 12 and the mounting surface will restrict the rotation of the threaded rod 9. When the knob 3 is rotated, the transmission rod 4 and the active bevel gear 5 drive the two threaded sleeves 7 to rotate synchronously, so as to drive the two threaded rods 9 to extend and retract synchronously, thereby realizing the adjustment of the overall height of the fixed seat 1.

[0025] The specific steps of this solution are as follows: First, bring the mating surfaces of the two fixed seats 1 into contact. Then, place each support seat 12 on the mounting surface. Adjust the tilt angle of the support seat 12 using the ball joint between the connector 11 and the support seat 12, so that the bottom surface of the support seat 12 initially contacts the mounting surface, preparing for subsequent horizontal adjustment. Observe the mounting surface to determine the higher support seat 12, and manually adjust it. Use the ball joint to bring the corresponding threaded rod 9 into a vertical position. At this point, the fixed seat 1 is initially in a horizontal position. Next, use the fixing component to lock the ball joint to prevent changes in angle. Support the lower support seat 12 on the mounting surface to ensure it does not rotate with the threaded rod 9. Rotate the knob 3 corresponding to the support base 12. The knob 3 drives the transmission rod 4 to rotate, which in turn drives the active bevel gear 5 to rotate. The active bevel gear 5 drives the driven bevel gear 6 and the threaded sleeve 7 to rotate synchronously through meshing. Since the threaded sleeve 7 and the threaded rod 9 are coaxially threaded, and the threads of the two threaded sleeves 7 and the threaded rod 9 are matched, when the knob 3 is rotated, the threaded rod 9 extends until the bottom surface of the support base 12 is in contact with the mounting surface. Then, lock the ball joint to fix the support base 12 at the current angle.

[0026] After both support seats 12 are grounded, tighten the locking pins 14 on the threaded rods 9 on both sides. The locking pins 14 abut against the T-shaped shaft 10 through the second friction pad, restricting the rotation of the T-shaped shaft 10, so that the threaded rod 9 and the support seat 12 form a rigid connection. At this time, the friction between the support seat 12 and the mounting surface will restrict the rotation of the threaded rod 9, ensuring the stability of the fixture. If it is necessary to adjust the overall height of the fixed seat 1, with the locking pins 14 tightened, rotate the knob 3. The transmission rod 4 and the active bevel gear 5 drive the two threaded sleeves 7 to rotate synchronously. Due to the thread adaptation, the two threaded rods 9 will extend and retract synchronously in the same direction, thereby realizing the adjustment of the overall height of the fixed seat 1. After adjusting to the required height, ensure that the two fixed seats 1 are aligned so that the two fixed grooves 2 together form a positioning cavity. Embed the diaphragm valve body into the positioning cavity formed by the two fixed grooves 2, ensuring that the valve body is installed in place and fits tightly with the fixed fixture.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A diaphragm valve fixing tool, comprising two symmetrical fixed bases (1), characterized in that: Each of the fixed seats (1) has two threaded sleeves (7) connected to its surface. Each of the threaded sleeves (7) has a retractable threaded rod (9) connected to its bottom end. Each of the threaded rods (9) has a connector (11) connected to its bottom end. Each connector (11) is connected to a support seat (12) via a ball joint. The surface of the support seat (12) is provided with a fixing component for locking the ball joint. Each of the support seats (12) has a first friction pad (13) fixedly connected to its bottom end.

2. The diaphragm valve fixture of claim 1, wherein, The threaded sleeve (7) is rotatably connected to the fixed seat (1), and a positioning ring (8) is coaxially fixedly connected to the surface of the threaded sleeve (7). The positioning ring (8) is rotatably connected to the fixed seat (1).

3. The diaphragm valve fixture of claim 1, wherein, The threaded sleeve (7) and the threaded rod (9) are connected by a coaxial thread.

4. The diaphragm valve set-up tool of claim 1, wherein, Each of the threaded sleeves (7) is coaxially fixedly connected to a driven bevel gear (6) at its top end. The fixed base (1) is internally rotatably connected to two driving bevel gears (5), which mesh with the corresponding driven bevel gears (6). A transmission rod (4) is coaxially fixedly connected between the two driving bevel gears (5). A knob (3) is coaxially fixedly connected to the surface of the transmission rod (4).

5. The diaphragm valve set-up tool of claim 1, wherein, The top end of the connector (11) is coaxially fixedly connected to a T-shaped shaft (10), and the T-shaped shaft (10) and the threaded rod (9) are rotatably connected.

6. The diaphragm valve fixture of claim 5, wherein, The threaded rod (9) is threadedly connected to a locking pin (14) for locking a T-shaped shaft (10), and a second friction pad is fixedly connected to the end of the locking pin (14).

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