Heald lifting shaft supporting and protecting structure

Abstract

The utility model is suitable for the technical field of heald lifting shafts, and provides a heald lifting shaft supporting and protecting structure which comprises a protecting cover, the mounting assembly comprises a base arranged below the protective cover, containing boxes are arranged at the two ends of the base, rotating shafts are rotationally arranged in the containing boxes, two matching blocks are arranged on each rotating shaft, an extrusion plate is arranged on one side of each rotating shaft, first connecting rods are rotationally arranged between the matching blocks and the extrusion plate, and threaded pipes are rotationally arranged at the two ends of each rotating shaft in a sleeving mode; a locking block is arranged in the containing box in a sliding mode, a second connecting rod is rotationally arranged between the locking block and the threaded block, a locking rack is arranged on the locking block, a locking gear is arranged on the rotating shaft, a moving seat is arranged in the containing box, a first rack and a second rack are arranged on the moving seat, and a center gear is arranged on the rotating shaft; and side gears are arranged on the threaded pipes. Therefore, auxiliary support and protection can be provided for the heald lifting shaft, the disassembly and assembly process can be simplified, and a good installation effect can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heald shafts, in particular to a support and protection structure for a heald shaft. Background Art

[0002] The auxiliary support bushing of the heald shaft is an important component of a water jet loom. During the daily production operation of the water jet loom, it is necessary to maintain the good working condition of the auxiliary support bushing of the heald shaft. However, during the operation of the water jet loom, water, impurities, etc. will fall onto the auxiliary support bushing of the heald shaft, which affects the normal use of the heald shaft.

[0003] In view of the above problems, those skilled in the art have improved the prior art. For example, the auxiliary support protection cover for the heald shaft with the publication number of CN216427548U includes a cover body and a flange integrally formed on the outer wall of the cover body. An opening is formed on one side of the cover body, and a protrusion is integrally injection-molded on the side of the cover body where the opening is located; a through groove is formed on the side of the cover body away from the protrusion, and a stop strip is integrally injection-molded on the side of the cover body close to the through groove; at least two oil injection holes are opened on one side of the cover body. The cover body is composed of an oil-proof layer, a strengthening layer, and a base layer provided on the side of the strengthening layer away from the oil-proof layer. A waterproof layer is provided on the side of the base layer away from the strengthening layer. The waterproof layer is connected to the base layer through an adhesive, the base layer away from the waterproof layer is connected to the strengthening layer through an adhesive, and the strengthening layer away from the base layer is connected to the oil-proof layer through an adhesive. It can realize the quick disassembly and assembly of the protection cover. However, during the use of the above device, only the elastic force provided by the spring is used to overcome the movement of the protection cover, resulting in poor connection stability and still having inconveniences in use.

[0004] In summary, it is obvious that the prior art has inconveniences and defects in actual use, so it is necessary to improve it. Content of the Utility Model

[0005] Aiming at the above defects, the purpose of the utility model is to provide a support and protection structure for a heald shaft, which can not only provide auxiliary support and protection for the heald shaft, but also simplify the disassembly and assembly process, and can also ensure a good installation effect.

[0006] To achieve the above object, the present utility model provides a support and protection structure for a heddle shaft, comprising: a protective cover provided with a mating groove on one side for mating with the heddle shaft; an installation assembly including a base and a receiving box, the base being disposed below the protective cover, receiving boxes being provided at both ends of the base, a rotating shaft being rotatably provided in each of the receiving boxes, two mating blocks and two first threads with opposite directions being provided on the rotating shaft, an extrusion plate being provided on one side of the rotating shaft, a first connecting rod being rotatably provided between each mating block and the extrusion plate, a threaded tube being rotatably sleeved at both ends of the rotating shaft, a threaded block and a second thread being provided on each threaded tube, the two second threads having opposite directions, locking blocks being slidably provided on both side walls of each receiving box, a second connecting rod being rotatably provided between each adjacent locking block and the threaded block, a locking rack being provided on the locking block, locking gears being provided at both ends of the rotating shaft, a moving seat being provided on one side of the rotating shaft, a first rack and a second rack being provided on the moving seat, a central gear being provided on the rotating shaft, and side gears being provided on each threaded tube.

[0007] According to the support and protection structure for a heddle shaft of the present utility model, handles are provided on the moving seats, the handles penetrate through the side walls of the receiving boxes, and a plurality of springs are provided between each moving seat and the side wall of the receiving box close to it.

[0008] According to the support and protection structure for a heddle shaft of the present utility model, a limiting plate for mating with the protective cover is provided on one side of the receiving box.

[0009] According to the support and protection structure for a heddle shaft of the present utility model, a limiting rod passing through the mating blocks and the threaded blocks is provided above the rotating shaft, and both ends of the limiting rod are connected to the side walls of the receiving box.

[0010] According to the support and protection structure for a heddle shaft of the present utility model, the length of the first rack is greater than the length of the second rack.

[0011] According to the support and protection structure for a heddle shaft of the present utility model, a baffle is provided on the protective cover at the mating groove, and a plurality of oil injection holes are provided on the protective cover.

[0012] The purpose of the present utility model is to provide a support and protection structure for a heddle shaft, and its beneficial effects are as follows:

[0013] 1. By providing the protective cover, water or impurities can be blocked, thereby providing auxiliary support and protection for the heddle shaft.

[0014] 2. By providing the installation assembly, not only can the rapid disassembly and assembly of the protective cover be realized, the disassembly and assembly process can be simplified, and the disassembly and assembly efficiency can be improved, but also the rotating shaft can be self-locked to ensure a good installation effect.

[0015] In summary, the beneficial effects of the present utility model are as follows: it can provide auxiliary support and protection for the heald shaft, simplify the disassembly and assembly process, and ensure a good installation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the external structure of the present utility model;

[0017] Figure 2 is a top view sectional view of the present utility model;

[0018] Figure 3 is Figure 2 an enlarged schematic diagram of the structure of part A of

[0019] In the figure: 1 - protective cover, 11 - baffle, 2 - installation assembly, 21 - base, 22 - receiving box, 23 - rotating shaft, 231 - central gear, 232 - locking gear, 24 - fitting block, 241 - first connecting rod, 25 - pressing plate, 251 - inserting rod, 26 - threaded tube, 261 - side gear, 262 - threaded block, 27 - locking block, 271 - second connecting rod, 28 - moving seat, 281 - handle, 282 - first rack, 283 - second rack. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] Referring to Figures 1 to 3 , the present utility model provides a support and protection structure for a heald shaft, including a protective cover 1 and an installation assembly 2. The protective cover 1 is installed on a water jet loom through the installation assembly 2. A fitting groove for cooperating with the heald shaft is provided on one side wall of the protective cover 1, and the heald shaft is installed on the protective cover 1 through the fitting groove (the structure and connection method of the heald shaft are common knowledge in the art, so the present utility model will not be described in detail). A baffle 11 is provided on the side wall of the protective cover 1 at the fitting groove 11, and the baffle 11 can block water or impurities. A plurality of oil injection holes are provided on the protective cover 1.

[0022] Referring to Figures 1 to 3, the installation component 2 includes a base 21 and a receiving box 22. The base 21 is arranged below the protective cover 1. The base 21 is connected to the water jet loom by bolts (or other connection methods). The base 21 can be an integral structure or several split structures, and the user should select according to the actual situation. At both ends of the top surface of the base 21, there are receiving boxes 22. Inside the receiving boxes 22, there are rotating shafts 23. The two side walls at both ends of the rotating shaft 23 are respectively rotatably connected to the two side walls of the receiving box 22. There are two first threads with opposite directions on the rotating shaft 23. There are two fitting blocks 24 on the rotating shaft 23. There are first threaded holes on both fitting blocks 24, and the first threaded holes are in one-to-one correspondence with the first threads. When the rotating shaft 23 rotates, it can drive the two fitting blocks 24 to approach (or move away) synchronously. On the side of the rotating shaft 23 close to the protective cover 1, there is a pressing plate 25. There is an avoidance groove on the side wall of the receiving box 22 that cooperates with the pressing plate 25. There is a first connecting rod 241 rotatably arranged between the pressing plate 25 and the fitting block 24 (that is, one end of the first connecting rod 241 is rotatably connected to the fitting block 24, and the other end of the first connecting rod 241 is rotatably connected to the pressing plate 25). On the side wall of the pressing plate 25 close to the protective cover 1, there is an insertion rod 251, and there is a slot on the protective cover 1 that cooperates with the insertion rod 251.

[0023] See Figures 1 to 3 , at both ends of the rotating shaft 23, there are threaded tubes 26 rotatably sleeved. There are second threads on the threaded tubes 26, and the directions of the two second threads are opposite. There are threaded blocks 262 on the threaded tubes 26. There are second threaded holes on the threaded blocks 262 that cooperate with the threaded tubes 26. There are locking blocks 27 slidably arranged on both side walls of the receiving box 22. There is a second connecting rod 271 rotatably arranged between the adjacent threaded blocks 262 and the locking blocks 27 (that is, one end of the second connecting rod 271 is rotatably connected to the threaded block 262, and the other end of the second connecting rod 271 is rotatably connected to the locking block 27). There are locking racks on the side walls of the locking blocks 27 close to the rotating shaft 23. There are locking gears 232 at both ends of the rotating shaft 23. When the locking rack meshes with the locking gear 232, the rotating shaft 23 can be locked.

[0024] See Figures 1 to 3 , on the side of the rotating shaft 23 away from the protective cover 1, there is a moving seat 28. On the side of the moving seat 28 away from the rotating shaft 23, there is a handle 281. The handle 281 passes through the side wall of the receiving box 22. There is a first rack 282 and a second rack 283 on the moving seat 28. There is a first rack 282 on the rotating shaft 23 that can mesh with the first rack 282, and there are side gears 261 on the threaded tubes 26 that can mesh with the second rack 283. The length of the first rack 282 is greater than the length of the second rack 283.

[0025] See Figures 1 to 3, preferably, a limiting plate capable of cooperating with the protective cover 1 is provided on one side of the accommodating box 22. The limiting plate and the pressing plate 25 cooperate to support the protective cover 1 together, and the limiting plate can prevent the protective cover 1 from deforming due to the extrusion of the pressing plate 25.

[0026] See Figures 1 to 3 , preferably, a limiting rod passing through the fitting block 24 and the threaded block 26 is provided above the rotating shaft 23. The two ends of the limiting rod are respectively connected to the two side walls of the accommodating box 22, and the limiting rod can prevent the fitting block 24 and the threaded block 26 from rotating self.

[0027] See Figures 1 to 3 , preferably, a plurality of springs are provided between the moving seat 28 and the side wall of the accommodating box 22 close to it. When the springs are in the natural state, the pressing plate 25 abuts against and presses the protective cover 1 and the locking rack meshes with the locking gear 232.

[0028] In the implementation process of the present utility model: the user supports and protects the heald shaft through the protective cover 1. When it is necessary to repair or replace the protective cover 1 or the heald shaft, the user pulls the handle 281, and the handle 281 drives the moving seat 28 to move away from the rotating shaft 23. At this time, the second rack 283 first meshes with the side gear 261, so that the side gear 261 drives the threaded tube 26 to rotate, thereby driving the threaded block 262 to move away synchronously. Under the action of the second connecting rod 271, the locking block 27 moves, and the locking rack disengages from the locking gear 232. Continuing to pull the handle 281, the second rack 283 disengages from the side gear 261, and the first rack 282 meshes with the central gear 231, so that the central gear 231 drives the rotating shaft 23 to rotate, and the two fitting blocks 24 move away synchronously, so that the pressing plate 25 moves away from the protective cover 1, and the insertion rod 251 disengages from the insertion slot. At this time, the protective cover 1 can be removed.

[0029] When installing the protective cover 1, first place the protective cover 1 in the appropriate position, release the handle 281, and the moving seat 28 automatically resets under the action of the spring. The first rack 282 first meshes with the central gear 231, so that the pressing plate 25 abuts against and presses the protective cover 1, and then the second rack 283 meshes with the side gear 261, so that the locking rack meshes with the locking gear 232 to lock the rotating shaft 23.

[0030] The present utility model provides a heald shaft support and protection structure, and its beneficial effects are as follows:

[0031] 1. By providing a protective cover, it is possible to block water or impurities, thereby providing auxiliary support and protection for the heald shaft.

[0032] 2. By providing an installation component, it is not only possible to realize the quick disassembly and assembly of the protective cover, simplify the disassembly and assembly process, improve the disassembly and assembly efficiency, but also can self-lock the rotating shaft to ensure a good installation effect.

[0033] In summary, the beneficial effects of the present utility model are as follows: it can not only provide auxiliary support and protection for the heald shaft, but also simplify the disassembly and assembly process, and can also ensure good installation effect.

[0034] Of course, the present utility model can also have various embodiments. Without departing from the spirit and essence of the present utility model, those skilled in the art can make corresponding changes and deformations according to the present utility model. However, these corresponding changes and deformations should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A heddle shaft support and protection structure, characterized in that Comprising: A protective cover, on one side of which there is a mating groove for mating with a heddle lifting shaft; An installation assembly, which includes a base and a receiving box. The base is provided below the protective cover. Receiving boxes are provided at both ends of the base. Rotating shafts are provided in the receiving boxes. Two mating blocks and two first threads with opposite directions are provided on the rotating shafts. An extrusion plate is provided on one side of the rotating shaft. First connecting rods are rotatably provided between the mating blocks and the extrusion plate. Threaded tubes are rotatably sleeved at both ends of the rotating shaft. Threaded blocks and second threads are provided on the threaded tubes. The two second threads have opposite directions. Locking blocks are slidably provided on both side walls of the receiving box. Second connecting rods are rotatably provided between adjacent locking blocks and threaded blocks. Locking racks are provided on the locking blocks. Locking gears are provided at both ends of the rotating shaft. A moving seat is provided on one side of the rotating shaft. A first rack and a second rack are provided on the moving seat. A central gear is provided on the rotating shaft. Side gears are provided on the threaded tubes.

2. The dobby shaft support protection structure according to claim 1, characterized in that, Handles are provided on the moving seats. The handles penetrate through the side walls of the receiving boxes. A number of springs are provided between the moving seats and the side walls of the receiving boxes closest to them.

3. The lifting harness shaft support protection structure according to claim 1, characterized in that, A limiting plate for mating with the protective cover is provided on one side of the receiving box.

4. The lifting harness shaft support protection structure according to claim 1, characterized in that A limiting rod passing through the mating blocks and the threaded blocks is provided above the rotating shaft. Both ends of the limiting rod are connected to the side walls of the receiving box.

5. The lifting harness shaft support protection structure according to claim 1, characterized in that, The length of the first rack is greater than the length of the second rack.

6. The dobby shaft support and protection structure according to claim 1, characterized in that, A baffle is provided on the protective cover at the mating groove. A number of oil injection holes are provided on the protective cover.

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