Fixing clamp for valve rod production

Abstract

The utility model belongs to the technical field of valve rods, and particularly relates to a fixing clamp for valve rod production. Comprising lifting lugs which are symmetrically arranged, a fixing plate is fixedly installed between the lifting lugs, and a synchronous fixing assembly is arranged on the fixing plate. Through the design of the gear and the tooth row, the clamping plates can be driven to be close to each other as long as movement in one direction is controlled, and a worker can quickly fix a valve rod; when the valve rod is conveyed to a working position, the crane is controlled to directly control the position below the valve rod, the clamping plate can loosen fixation of the valve rod through the automatic separation mechanism, and therefore automatic separation is achieved, and the whole device is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve stems, and particularly relates to a fixing fixture for valve stem production. Background Technique

[0002] The valve stem is one of the important components of the valve. It is usually a slender rod-shaped part, and its main function is to transmit the force and motion from the handwheel, actuator, etc. to realize the functions of opening, closing and regulating the flow rate of the valve. The valve stem plays a key role in the normal operation and performance of the valve.

[0003] In the production process of the valve stem, an essential step is to lift the valve stem by a crane and transfer it to other places for work. The existing lifting method is to tie the valve stem at both ends by workers with cables and then fix it with the crane through the cables. Such an operation method requires workers to firmly operate the tied cables. Once the tying is not firm, there is a risk of the valve stem falling; in view of the above problems, a fixing fixture for valve stem production with convenient operation is proposed. Summary of the Utility Model

[0004] In order to solve the problems existing in the background technique, the utility model provides a fixing fixture for valve stem production; the overall operation is convenient and it has the ability of automatic decoupling.

[0005] A fixing fixture for valve stem production provided by the utility model includes symmetrically arranged lifting lugs, a fixing plate is fixedly installed between the lifting lugs, and a synchronous fixing component is arranged on the fixing plate; the synchronous fixing component includes a groove on the lower side of the fixing plate, clamping plates are symmetrically and slidably connected in the groove, a gear is rotatably connected in the groove, tooth rows are symmetrically and fixedly installed on the clamping plates with respect to the gear, the tooth rows are meshed with the gear, springs I are symmetrically and fixedly installed on the mutually remote sides of the clamping plates, the other ends of the springs I are fixedly connected with the inner wall of the groove, a pull rod is fixedly installed on one of the clamping plates, and one end of the pull rod extends out of the fixing plate, a ratchet wheel is rotatably connected to the upper side of the fixing plate, the gear is fixedly connected with the ratchet wheel, a ratchet pawl is arranged on the fixing plate corresponding to the ratchet wheel, a spring II is fixedly installed on the fixing plate, the spring II is fixedly connected with the ratchet pawl, and an automatic separation mechanism is arranged on the fixing plate corresponding to the ratchet pawl.

[0006] Furthermore, the automatic separation mechanism includes a fixing block on one side of the fixing plate, a transmission rod is inserted and connected to the fixing block, a ball is arranged at the upper end of the transmission rod, a limiting plate is fixedly installed between the fixing plate and the lifting lug, an induction plate is slidably connected between the fixing plate and the limiting plate, a slope is arranged on the induction plate corresponding to the ball, a connecting rope is arranged at the other end of the induction plate, and one end of the connecting rope is fixedly connected with the ratchet pawl.

[0007] Further, a bottom plate is fixedly installed at the lower end of the transmission rod.

[0008] Further, a limiting rod is fixedly installed corresponding to the tooth row in the groove. The limiting rod is inserted and connected with the corresponding tooth row, and the limiting rod is inserted and connected with the corresponding clamping plate.

[0009] Further, a handle is fixedly installed on the pull rod, and a rubber sleeve is arranged outside the handle.

[0010] Further, a rubber pad is arranged between the clamping plates.

[0011] Further, the clamping plates are in a V shape.

[0012] Advantages of the utility model:

[0013] Through the design of the gear and the tooth row, as long as the movement in one direction is controlled, the clamping plates can be driven to approach each other, enabling workers to quickly fix the valve stem. When the valve stem is transported to the working position, the crane is controlled to directly place it below the valve stem, and the automatic separation mechanism can make the clamping plates release the fixation of the valve stem, so as to automatically separate, which is more convenient as a whole. Description of the drawings

[0014] Figure 1 It is the front view, top view and three-dimensional view of a fixing fixture for valve stem production of the utility model.

[0015] Figure 2 It is the rear view, top view and three-dimensional view of a fixing fixture for valve stem production of the utility model.

[0016] Figure 3 It is the front view, bottom view and three-dimensional view of a fixing fixture for valve stem production of the utility model.

[0017] Figure 4 It is the schematic diagram after removing the fixing plate of a fixing fixture for valve stem production of the utility model.

[0018] Figure 5 It is the schematic diagram of area A of a fixing fixture for valve stem production of the utility model.

[0019] Figure 6 It is the schematic diagram of area B of a fixing fixture for valve stem production of the utility model.

[0020] As shown in the figure:

[0021] 1. Lifting lug, 2. Fixed plate, 3. Groove, 4. Clamping plate, 5. Gear, 6. Tooth row, 7. First spring, 8. Pull rod, 9. Ratchet wheel, 10. Pawl, 11. Second spring, 12. Fixed block, 13. Transmission rod, 14. Ball, 15. Limit plate, 16. Induction plate, 17. Slope, 18. Connecting rope, 19. Bottom plate, 20. Limit rod, 21. Handle, 22. Rubber sleeve, 23. Rubber pad. Detailed implementation mode

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0024] Please refer to all the specification drawings:

[0025] A fixing fixture for valve stem production includes symmetrically arranged lifting lugs 1. A fixed plate 2 is fixedly installed between the lifting lugs 1, and a synchronous fixing component is arranged on the fixed plate 2.

[0026] The synchronous fixing component includes a groove 3 on the lower side surface of the fixed plate 2. Symmetrically sliding connections are provided in the groove 3 with clamping plates 4. A gear 5 is rotatably connected in the groove 3. Tooth rows 6 are symmetrically and fixedly installed on the clamping plates 4 with respect to the gear 5. The tooth rows 6 and the gear 5 are meshed with each other. Springs 7 are symmetrically and fixedly installed on the mutually remote sides of the clamping plates 4. The other ends of the springs 7 are fixedly connected to the inner wall of the groove 3. A pull rod 8 is fixedly installed on one of the clamping plates 4. One end of the pull rod 8 extends outside the fixed plate 2. A ratchet wheel 9 is rotatably connected to the upper side surface of the fixed plate 2. The gear 5 is fixedly connected to the ratchet wheel 9. A pawl 10 is provided on the fixed plate 2 corresponding to the ratchet wheel 9. A spring 11 is fixedly installed on the fixed plate 2. The spring 11 is fixedly connected to the pawl 10. An automatic separation mechanism is provided on the fixed plate 2 corresponding to the pawl 10.

[0027] As can be seen from the above description, by placing the control lever of the crane between the two clamping plates 4 and pushing the pull rod 8, the clamping plates 4 are made to approach each other, clamping the valve stem. Utilizing the structural relationship between the ratchet 9 and the pawl 10, the clamping plates 4 can be stably positioned at the corresponding positions, effectively fixing the valve stem. Then, by controlling the operation of the crane and connecting with the lifting lug 1, the valve stem is driven to move.

[0028] As a technical optimization solution of the present utility model, the automatic separation mechanism includes a fixed block 12 located on one side of the fixed plate 2. A transmission rod 13 is inserted and connected to the fixed block 12. A ball 14 is provided at the upper end of the transmission rod 13. A limiting plate 15 is fixedly installed between the fixed plate 2 and the lifting lug 1. A sensing plate 16 is slidably connected between the fixed plate 2 and the limiting plate 15. The sensing plate 16 is provided with a slope 17 corresponding to the ball 14. A connecting rope 18 is provided at the other end of the sensing plate 16. One end of the connecting rope 18 is fixedly connected to the pawl 10;

[0029] As can be seen from the above description, when the transmission rod 13 moves upward, it will drive the sensing plate 16 to move to one side, causing the connecting rope 18 to drive the pawl 10 upward, leaving the control of the ratchet 9. Under the control of the first spring 7, the clamping plates move away from each other, releasing the fixation of the valve stem, and the valve stem can automatically fall.

[0030] As a technical optimization solution of the present utility model, a bottom plate 19 is fixedly installed at the lower end of the transmission rod 13;

[0031] As can be seen from the above description, the bottom plate 19 can increase the contact area of the transmission rod 13.

[0032] As a technical optimization solution of the present utility model, a limiting rod 20 is fixedly installed in the groove 3 corresponding to the tooth row 6. The limiting rod 20 is inserted and connected to the corresponding tooth row 6, and the limiting rod 20 is inserted and connected to the corresponding clamping plate 4;

[0033] As can be seen from the above description, the limiting rod 20 can improve the moving stability of the tooth row 6 and the clamping plate 4, and can also make the overall rigidity better.

[0034] As a technical optimization solution of the present utility model, a handle 21 is fixedly installed on the pull rod 8, and a rubber sleeve 22 is provided outside the handle 21;

[0035] As can be seen from the above description, workers can more conveniently control the movement of the pull rod 8 through the handle 21, and the rubber sleeve 22 can increase the friction between the worker's palm and the handle 21.

[0036] As a technical optimization solution of the present utility model, a rubber pad 23 is provided between the clamping plates 4;

[0037] As can be seen from the above description, the design of the rubber pad 23 can increase the friction between the clamping plate 4 and the valve stem.

[0038] As a technical optimization solution of the present utility model, the clamping plate is V-shaped;

[0039] As can be seen from the above description, through the V-shaped design, the clamping plates 4 on both sides can effectively clamp the corresponding valve stem, and within the clampable range, the clamping of valve stems with different diameters can be achieved.

[0040] Working principle:

[0041] Control the valve stem to be located between the two clamping plates 4 through a crane, push the pull rod 8, so that the clamping plates 4 approach each other to clamp the valve stem. Utilize the structural relationship between the ratchet 9 and the pawl 10 to enable the clamping plates 4 to be stably in the corresponding positions and effectively fix the valve stem. Then control the crane to work, and drive the valve stem to move through the connection with the lifting lug 1. After moving to the designated position, the crane lowers the entire lifting tool, driving the transmission rod to move. When the transmission rod 13 moves upward, it will drive the induction plate 16 to move to one side, causing the connecting rope 18 to drive the pawl 10 upward, away from the control of the ratchet 9. Under the control of the first spring 7, the clamping plates move away from each other, releasing the fixation of the valve stem, and the valve stem can automatically fall.

[0042] The present utility model and its implementation manners have been described above. Such description is not restrictive. What is shown in the specific implementation manners is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A fixing fixture for valve stem production, including symmetrically arranged lifting lugs, and a fixing plate is fixedly installed between the lifting lugs, characterized in that: A synchronous fixing component is provided on the fixing plate; the synchronous fixing component includes a groove on the lower side surface of the fixing plate, two clamping plates are symmetrically and slidably connected in the groove, a gear is rotatably connected in the groove, tooth rows are symmetrically and fixedly installed on the clamping plates with respect to the gear, the tooth rows are meshed with the gear, springs I are symmetrically and fixedly installed on the mutually remote sides of the clamping plates, the other ends of the springs I are fixedly connected with the inner wall of the groove, a pull rod is fixedly installed on one of the clamping plates, one end of the pull rod extends out of the fixing plate, a ratchet wheel is rotatably connected to the upper side surface of the fixing plate, the gear is fixedly connected with the ratchet wheel, a ratchet pawl is provided on the fixing plate corresponding to the ratchet wheel, a spring II is fixedly installed on the fixing plate, the spring II is fixedly connected with the ratchet pawl, and an automatic separation mechanism is provided on the fixing plate corresponding to the ratchet pawl.

2. The fixed fixture for valve stem production according to claim 1, characterized in that: The automatic separation mechanism includes a fixing block on one side of the fixing plate, a transmission rod is inserted and connected to the fixing block, a ball is arranged at the upper end of the transmission rod, a limiting plate is fixedly installed between the fixing plate and the lifting lug, an induction plate is slidably connected between the fixing plate and the limiting plate, a slope is arranged on the induction plate corresponding to the ball, a connecting rope is arranged at the other end of the induction plate, and one end of the connecting rope is fixedly connected with the ratchet pawl.

3. The fixed fixture for valve stem production according to claim 2, characterized in that: A bottom plate is fixedly installed at the lower end of the transmission rod.

4. A fixing jig for valve stem production according to claim 1, characterized in that: Limiting rods are fixedly installed in the groove corresponding to the tooth rows, the limiting rods are inserted and connected with the corresponding tooth rows, and the limiting rods are inserted and connected with the corresponding clamping plates.

5. The fixed fixture for valve stem production according to claim 1, wherein: A handle is fixedly installed on the pull rod, and a rubber sleeve is arranged outside the handle.

6. The fixed fixture for valve stem production according to claim 1, characterized in that: A rubber pad is arranged between the clamping plates.

7. A fixing fixture for valve stem production according to claim 1, characterized in that: The clamping plates are V-shaped.

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