A clamp

Abstract

The present invention discloses a clamp, comprising a clamp body, a crank lever, the crank lever and a latch puller are hinged, the latch puller is connected to a non-standard double-headed screw, the non-standard double-headed screw is connected to an inner diameter chuck pull rod, the clamp body is connected to the inner diameter chuck, the inner diameter chuck is made of elastic metal material, and the inner diameter chuck pull rod is used to open the inner diameter chuck. The present invention reduces the labor intensity of workers, improves work efficiency, and also well avoids injuries to workers' hands, is easy to operate, and can be used multiple times.

Description

Technical Field

[0001] The invention relates to the technical field of clamps, in particular to a clamp. Background Art

[0002] Due to the variability of its processes and the huge and complex equipment in the metallurgical industry, a lot of manpower and time are spent on equipment maintenance and overhaul, which puts the workers' labor intensity, work efficiency and personal safety in a less than ideal state. The same is true for replacing the corundum mullite brick inside the regenerative burner. The regenerative burner is generally located at the highest point of the roaster, and the working environment for replacing the corundum mullite brick is relatively dangerous. At present, the damaged corundum mullite brick is basically broken, dropped from the nozzle of the regenerative burner, and then tied up with steel wire, and a long section of steel wire is left for hand-carrying. The above method needs to be repeated for each replacement of a corundum mullite brick. The weight of the corundum mullite brick of the general regenerative burner is 25 to 35 kilograms. This method will hurt the workers' hands, and it is inconvenient and time-consuming, and the steel wire cannot be reused after use. Based on the above problems, a convenient and fast special clamp is needed. Summary of the invention

[0003] The object of the present invention is to provide a clamp to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a clamp, comprising a clamp tube body and a crank lever, the crank lever and the pin pull head are hinged, the pin pull head is connected to a non-standard double-headed screw, the non-standard double-headed screw is connected to an inner diameter chuck pull rod, the clamp tube body is connected to the inner diameter chuck, the inner diameter chuck is made of elastic metal material, and the inner diameter chuck pull rod is used to open the inner diameter chuck.

[0005] Preferably, the clamp tube body comprises a horizontal portion and a vertical portion.

[0006] Preferably, the crank lever is connected to the roller via a roller pin, the roller is in sliding contact with the vertical portion of the clamp tube body, a positioning sheet is further provided on the crank lever, a plunger seat is provided on the vertical portion of the clamp tube body, the positioning sheet is inserted into the plunger seat and fixed via a knob plug, and a nut is threadedly connected to the knob plug.

[0007] Preferably, the crank lever and the latch pull head are hinged in such a way that the crank lever is connected via a pull head pin shaft, and a positioning card is also provided on the pull head pin shaft to prevent the pull head pin shaft from falling off.

[0008] Preferably, the latch puller and the non-standard double-headed screw are connected in a manner that the non-standard double-headed screw and a fixing nut welded in the latch puller are threadedly connected.

[0009] Preferably, the non-standard double-ended screw and the inner diameter collet pull rod are connected in such a way that the non-standard double-ended screw is connected to the inner diameter collet pull rod via a non-standard long nut and a non-standard short nut.

[0010] Preferably, the connection between the clamp tube body and the inner diameter chuck is a threaded connection, and a nut is threadedly connected between the inner diameter chuck and the clamp tube body.

[0011] Preferably, the elastic metal material used for the inner diameter chuck is Q235 carbon structural steel or Q275 carbon structural steel.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The invention reduces the labor intensity of workers and improves work efficiency, and also well avoids injuries to workers' hands, is easy to operate, and can be used multiple times. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the present invention;

[0015] Figure 2 is a cross-sectional view of the present invention;

[0016] Figure 3 It is an enlarged view of point A of the present invention;

[0017] Figure 4 It is an enlarged view of B of the present invention;

[0018] Figure 5 It is an enlarged view of point C of the present invention;

[0019] Figure 6 It is an enlarged view of D of the present invention;

[0020] Figure 7 It is a front view of the crank lever of the present invention;

[0021] Figure 8 A top view of the crank lever of the present invention;

[0022] Fig. 9 It is a schematic diagram of the structure of the clamp tube body of the present invention;

[0023] Fig.10 It is a schematic diagram of the positioning sheet structure of the present invention;

[0024] Fig.11 A top view of the plunger seat of the present invention;

[0025] Fig.12 A side view of a plunger seat of the present invention;

[0026] Fig.13It is a schematic diagram of the pull pin structure of the present invention;

[0027] Fig.14 This is a schematic diagram of the non-standard double-head screw structure of the present invention;

[0028] Fig.15 This is a schematic diagram of the non-standard short nut structure of the present invention;

[0029] Fig.16 This is a schematic diagram of the non-standard long nut structure of the present invention;

[0030] Fig.17 It is a schematic diagram of the inner diameter chuck pull rod structure of the present invention;

[0031] Fig.18 It is a schematic diagram of the inner diameter chuck structure of the present invention;

[0032] Fig.19 A side view of the latch puller of the present invention;

[0033] Fig. 20 is a cross-sectional view of the latch puller of the present invention;

[0034] Fig.21 It is a schematic diagram of the roller pin structure of the present invention.

[0035] In the figure: 1. crank lever; 2. clamp tube body; 3. positioning sheet; 4. nut; 5. roller pin; 6. latch pull head; 7. plunger seat; 8. pull head pin; 9. positioning card; 10. non-standard double-headed screw; 11. fixing nut; 12. roller; 13. knob plug; 14. vertical part; 15. inner diameter chuck; 16. nut; 17. non-standard short nut; 18. non-standard long nut; 19. inner diameter chuck pull rod; 20. horizontal part. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-21 The present invention provides a technical solution: a clamp, including a clamp body 2, a crank lever 1, the crank lever 1 and the pin pull head 6 are hinged, the pin pull head 6 is connected to the non-standard double-headed screw 10, the non-standard double-headed screw 10 is connected to the inner diameter clamp pull rod 19, the clamp body 2 is connected to the inner diameter clamp, the inner diameter clamp 15 is made of elastic metal material, and the inner diameter clamp 15 pull rod is used to open the inner diameter clamp 15.

[0038] Specifically, the clamp body 2 includes a horizontal portion 20 and a vertical portion 14 .

[0039] Specifically, the crank lever 1 is connected to the roller 12 through the roller pin 5, the roller 12 is in sliding contact with the vertical portion 14 of the clamp tube body 2, a positioning sheet 3 is also provided on the crank lever 1, a plunger seat 7 is provided on the vertical portion of the clamp tube body 2, the positioning sheet 3 is inserted into the plunger seat 7 and fixed by a knob plug 13, and a nut 4 is also threadedly connected to the knob plug 13.

[0040] Specifically, the crank lever 1 and the latch pull head 6 are hinged in such a manner that the crank lever 1 is connected via a pull head pin 8, and a positioning card 9 is also provided on the pull head pin 8 to prevent the pull head pin from falling off.

[0041] Specifically, the latch pull head 6 and the non-standard double-headed screw 10 are connected in a manner that the non-standard double-headed screw 10 and the fixing nut 11 welded inside the latch pull head 6 are threadedly connected.

[0042] Specifically, the non-standard double-ended screw 10 and the inner diameter collet pull rod 19 are connected in a manner that the non-standard double-ended screw 10 is connected to the inner diameter collet pull rod 19 through a non-standard long nut 18 and a non-standard short nut 17 .

[0043] Specifically, the connection between the clamp tube body 2 and the inner diameter clamp 15 is threaded connection, and a nut 16 is threadedly connected between the inner diameter clamp 15 and the clamp tube body 2 .

[0044] Specifically, the elastic metal material used for the inner diameter chuck 15 is Q235 carbon structural steel or Q275 carbon structural steel.

[0045] Working principle: The present invention is a patent in which the crank lever 1 is hinged with the latch puller 6 through the puller pin 8, and two roller pins 5 respectively connect the two rollers 12 with the crank lever 1 to fix them into one. The latch puller 6, the non-standard double-headed screw 10, the non-standard long nut 18, the non-standard short nut 17 and the inner diameter clamp pull rod 19 are connected into one through threads, and the clamp body 2 and the inner diameter clamp 15 are connected into one through threads. When the crank lever 1 is flattened, the roller 12 rolls on the vertical part 14 of the clamp body 2. When the center lines of the pull head pin 8, the roller 12 and the non-standard double-headed screw 10 are in the same straight line, the hinge four-bar mechanism of the patent of the present invention will produce a dead point. At the same time, due to the appearance of the inner diameter clamp rod 19 and the inner diameter clamp 15, the inner diameter clamp rod 19 opens the inner diameter clamp 15, and the maximum outer diameter size of the outer contour of the end of the inner diameter clamp 15 becomes larger and exceeds the inner diameter of the through hole of the corundum mullite brick, so that the corundum mullite brick can be hooked.

[0046] The plunger seat 7 is connected to the fixture tube 2 by screws. The positioning sheet 3 is also connected to the crank lever 1 by screws. When the hinge four-bar mechanism of the present invention produces a dead point, the pin hole on the positioning sheet 3 cooperates with the positioning pin on the knob plunger 13 to prevent the present invention from being unhooked due to accidental contact.

[0047] The patent of the present invention controls the opening and closing of the inner diameter chuck 15 by pressing and pulling the crank lever 1. The operation process is: when the inner diameter chuck 15 is closed, the patent of the present invention is extended to the bottom of the through hole of the corundum mullite brick, the crank lever 1 is pressed to open the inner diameter chuck 15, the corundum mullite brick is hooked, and then the positioning pin of the knob plunger 13 is inserted into the pin hole on the positioning sheet 3. At this time, the patent of the present invention can be lifted and moved upward to move the corundum mullite brick. After the corundum mullite brick is moved to the inside of the regenerative burner, the pin hole of the knob plunger 13 is first pulled out of the pin hole on the positioning sheet 3, and then the crank lever 1 is pulled outward. The inner diameter chuck 15 rebounds to its original shape due to the disappearance of the force originally applied to the inner diameter chuck 15. At this time, the patent of the present invention can be lifted and moved upward to be pulled out of the corundum mullite brick.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamp, characterized in that: It comprises a clamp tube body and a crank lever, wherein the crank lever is hinged with a latch puller, the latch puller is connected with a non-standard double-headed screw, the non-standard double-headed screw is connected with an inner diameter clamp pull rod, the clamp tube body is connected with the inner diameter clamp, the inner diameter clamp is made of elastic metal material, and the inner diameter clamp pull rod is used to open the inner diameter clamp; the clamp tube body comprises a horizontal part and a vertical part; The crank lever is connected to the roller through a roller pin, the roller is in sliding contact with the vertical part of the clamp tube, a positioning sheet is also provided on the crank lever, a plunger seat is provided on the vertical part of the clamp tube, the positioning sheet is plugged into the plunger seat and fixed by a knob plug, and a nut is also threadedly connected to the knob plug; The positioning sheet is connected to the crank lever through a screw.

2. A clamp according to claim 1, characterized in that: The crank lever and the latch pull head are hinged in such a way that the crank lever is connected via a pull head pin shaft, and a positioning card is also provided on the pull head pin shaft to prevent the pull head pin shaft from falling off.

3. A clamp according to claim 1, characterized in that: The latch pull head and the non-standard double-headed screw are connected in a manner that the non-standard double-headed screw and a fixing nut welded in the latch pull head are threadedly connected.

4. A clamp according to claim 1, characterized in that: The non-standard double-ended screw and the inner diameter collet pull rod are connected in a manner that the non-standard double-ended screw is connected to the inner diameter collet pull rod via a non-standard long nut and a non-standard short nut.

5. A clamp according to claim 1, characterized in that: The connection mode between the clamp tube body and the inner diameter clamp is threaded connection, and a nut is threadedly connected between the inner diameter clamp and the clamp tube body.

6. A clamp according to claim 1, characterized in that: The elastic metal material used for the inner diameter chuck is Q235 carbon structural steel or Q275 carbon structural steel.

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