Gypsum saw

Abstract

The utility model relates to the technical field of molding, and discloses a plaster saw which comprises a holding rod, a telescopic rod is welded to one side of the holding rod through a connecting rod, a sliding groove is formed in the surface of the telescopic rod, a plurality of grooves are formed in the sliding groove, and limiting assemblies are clamped in the grooves. Adjusting plates are fixedly mounted at the two ends of the telescopic rod correspondingly, sliding grooves are formed in the surfaces of the adjusting plates, control rods are slidably connected into the sliding grooves, and embedding grooves are formed in the surfaces of the control rods. According to the gypsum saw, through the arrangement of a telescopic rod and a limiting assembly, when a worker uses the gypsum saw, the telescopic rod is stretched out and drawn back, then a hydraulic rod and a spring can conduct extrusion sliding in a sliding groove, and when the hydraulic rod and the spring slide to a proper position, the hydraulic rod and the spring drive a limiting block to be clamped in a groove to fix the telescopic rod; therefore, the purpose that the saw body can be conveniently adjusted to be different in length according to needs is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold making, in particular to a gypsum saw. Background Art

[0002] In the clinical work of orthodontics, plaster saws are often needed to saw the plaster models as needed. Gypsum is a monoclinic mineral and a hydrate whose main chemical component is calcium sulfate (CaSO4). Gypsum is a widely used industrial material and building material. It can be used as cement retarder, gypsum building products, model making, medical food additives, sulfuric acid production, paper filler, paint filler, etc. The microporous structure and heating dehydration of gypsum and its products make them have excellent sound insulation, heat insulation and fire resistance.

[0003] A plaster saw specially used for orthodontics disclosed in publication number CN216603117U has a toothed ring which prolongs the axial assembly length of the circular saw blade and increases the torque of the circular saw blade. Even when the saw blade is working under tight pressure, the rotation speed of the circular saw blade can be kept consistent with the rotation speed of the shaft rod, and there will be no slot or tooth chipping. By providing a countersunk hole, the nut part of the fastening screw will not be exposed from the end face of the circular saw blade after the saw blade body is installed, thereby preventing the nut from hitting the tooth marks when the dentist cuts the plaster model, resulting in an incomplete model.

[0004] However, this special plaster saw for orthodontics has the following disadvantages:

[0005] (1) When using a plaster saw, it is often necessary to replace plaster saws of different lengths as needed, resulting in the consumption of more resources to produce plaster saws of different lengths;

[0006] (2) When replacing the saw blade, the saw blade needs to be tightened. If it is not tightened, the saw blade may easily fall off during use. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] The technical problem solved by the utility model is to provide a gypsum saw which is highly practical, can be simply operated and has a relatively simple structure. It solves the problem raised in the above-mentioned background technology that when using a gypsum saw, it is often necessary to replace the gypsum saw of different lengths according to needs, resulting in the consumption of more resources to produce gypsum saws of different lengths. When replacing the saw blade, the saw blade needs to be tightened. If it is not tightened, the saw blade is likely to fall off during use.

[0009] (II) Technical solution

[0010] To achieve the above purpose, the utility model is implemented through the following technical solutions: a gypsum saw, including a grip rod, a telescopic rod is welded to one side of the grip rod through a connecting rod, a slide groove is provided on the surface of the telescopic rod, a plurality of grooves are provided inside the slide groove, a limiting component is clamped inside the groove, an adjustment plate is fixedly installed at both ends of the telescopic rod, a sliding groove is provided on the surface of the adjustment plate, a control rod is slidably connected inside the sliding groove, an embedding groove is provided on the surface of the control rod, an engaging strip is provided inside the embedding groove, an adjustment component is meshed on the surface of the engaging strip, and a saw blade is sleeved on the surface of the control rod.

[0011] Optionally, the limiting assembly includes a mounting plate provided inside the telescopic rod, a hydraulic rod is fixedly mounted on the surface of the mounting plate, a spring is sleeved on the surface of the hydraulic rod, and a limiting block is fixedly connected to one end of the hydraulic rod, and the telescopic rod can be limited by the limiting assembly.

[0012] Optionally, the adjustment component includes a mounting groove on the surface of the adjustment plate, a protective frame fixedly mounted on the surface of the mounting groove, a rotating groove in the middle of the surface of the protective frame, a rotating rod rotatably connected inside the rotating groove, a ratchet fixedly mounted on the surface of the rotating rod, a gear fixedly mounted on one end of the rotating rod, a reverse ratchet plate fixedly mounted in the middle of the surface of the mounting groove, and a rotating plate fixedly mounted on the other end of the rotating rod, and the tension of the saw blade can be adjusted by the adjustment component.

[0013] Optionally, a through groove is opened in the middle of the surface of the installation groove, the size of the through groove is adapted to the rotating rod, and the structural design of the through groove facilitates personnel to install the rotating rod.

[0014] Optionally, a through groove is provided in the middle of the surface of the reverse ratchet plate, the size of the through groove is adapted to the rotating rod, and a ratchet is rotatably connected to the surface of the reverse ratchet plate, and the ratchet can be braked through the through groove.

[0015] Optionally, the surface of the grip rod is sleeved with an anti-skid cover for preventing slipping, and the surface of the anti-skid cover is coated with a waterproof coating. The provision of the anti-skid cover prevents the device from falling off when used by medical staff.

[0016] (III) Beneficial effects

[0017] The utility model provides a plaster saw, which has the following beneficial effects:

[0018] 1. The gypsum saw, through the arrangement of the telescopic rod and the limit assembly, when a person uses it, the telescopic rod is extended and retracted, and then the hydraulic rod and the spring are squeezed and slid inside the slide groove. When sliding to a suitable position, the hydraulic rod and the spring drive the limit block to be clamped inside the groove to fix the telescopic rod, thereby achieving the purpose of facilitating the person to adjust the saw body to different lengths as needed.

[0019] 2. The gypsum saw is provided with an adjustment plate, a control rod, an adjustment assembly and a saw blade. When a person installs the saw blade, both ends of the saw blade are sleeved on the control rod, and then the rotating plate is rotated, and the rotating plate drives the rotating rod to rotate, and the ratchet and the gear rotate accordingly, and the gear drives the meshing bar to rotate, and the meshing bar moves the control rod. When it moves to a suitable position, the reverse ratchet plate can limit the ratchet, thereby achieving the convenience of adjusting the saw blade to different tension levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model.

[0024] In the figure: 1. grip; 2. connecting rod; 3. telescopic rod; 4. limit assembly; 401. mounting plate; 402. hydraulic rod; 403. spring; 404. limit block; 5. adjustment plate; 6. control rod; 7. engagement strip; 8. adjustment assembly; 801. protection frame; 802. rotating rod; 803. ratchet; 804. gear; 805. reverse ratchet plate; 806. rotating plate; 9. saw blade. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 4The utility model provides a technical solution: a gypsum saw, including a grip rod 1, one side of the grip rod 1 is welded with a telescopic rod 3 through a connecting rod 2, a slide groove is provided on the surface of the telescopic rod 3, a plurality of grooves are provided inside the slide groove, and a limit assembly 4 is clamped inside the groove. Through the arrangement of the telescopic rod 3 and the limit assembly 4, when a person uses it, the telescopic rod 3 is retracted, and then the hydraulic rod 402 and the spring 403 will be squeezed and slid inside the slide groove. When sliding to a suitable position, the hydraulic rod 402 and the spring 403 will drive the limit block 404 to be clamped inside the groove to fix the telescopic rod 3, thereby achieving the purpose of facilitating the person to adjust the saw body to different lengths according to needs. Adjustment plates 5 are fixedly installed at both ends of the telescopic rod 3, and a sliding groove is provided on the surface of the adjustment plate 5. A control rod 6 is slidably connected inside the movable groove, and an embedding groove is provided on the surface of the control rod 6. An engaging strip 7 is provided inside the embedding groove. An adjusting assembly 8 is engaged on the surface of the engaging strip 7. A saw blade 9 is sleeved on the surface of the control rod 6. Through the arrangement of the adjusting plate 5, the control rod 6, the adjusting assembly 8 and the saw blade 9, when a person installs the saw blade 9, both ends of the saw blade 9 are sleeved on the control rod 6, and then the rotating plate 806 is rotated, and the rotating plate 806 drives the rotating rod 802 to rotate, and the ratchet 803 and the gear 804 rotate accordingly, and the gear 804 drives the engaging strip 7 to rotate, and the engaging strip 7 moves the control rod 6. When it moves to a suitable position, the reverse ratchet plate 805 can limit the ratchet 803, thereby achieving convenience for the person to adjust the different tensions of the saw blade 9.

[0027] The limiting assembly 4 includes a mounting plate 401 disposed inside the telescopic rod 3, a hydraulic rod 402 is fixedly mounted on the surface of the mounting plate 401, a spring 403 is sleeved on the surface of the hydraulic rod 402, and a limiting block 404 is fixedly connected to one end of the hydraulic rod 402. The telescopic rod 3 can be limited by the limiting assembly 4;

[0028] The adjusting assembly 8 includes an adjusting plate 5 having an installation groove on its surface, a protective frame 801 fixedly installed on the surface of the installation groove, a rotating groove on the middle of the surface of the protective frame 801, a rotating rod 802 rotatably connected inside the rotating groove, a ratchet 803 fixedly installed on the surface of the rotating rod 802, a gear 804 fixedly installed on one end of the rotating rod 802, a reverse ratchet plate 805 fixedly installed on the middle of the surface of the installation groove, and a rotating plate 806 fixedly installed on the other end of the rotating rod 802. The tension of the saw blade 9 can be adjusted by adjusting the assembly 8;

[0029] A through groove is provided in the middle of the surface of the installation groove. The size of the through groove is adapted to the rotating rod 802. The structural design of the through groove facilitates the installation of the rotating rod 802.

[0030] A through slot is provided in the middle of the surface of the reverse ratchet plate 805, the size of which matches the rotating rod 802, and a ratchet 803 is rotatably connected to the surface of the reverse ratchet plate 805, and the ratchet 803 can be braked through the through slot;

[0031] The surface of the grip rod 1 is sleeved with an anti-skid cover for preventing skidding. The surface of the anti-skid cover is coated with a waterproof coating. The anti-skid cover can prevent the device from falling off when used by medical staff.

[0032] In the utility model, the working steps of the device are as follows:

[0033] Step 1: The telescopic rod 3 is extended and retracted, and then the hydraulic rod 402 and the spring 403 are squeezed and slid inside the slide groove. When sliding to a suitable position, the hydraulic rod 402 and the spring 403 drive the limiting block 404 to be clamped inside the groove to fix the telescopic rod 3;

[0034] The second step: both ends of the saw blade 9 are sleeved on the control rod 6, and then the rotating plate 806 is rotated. The rotating plate 806 drives the rotating rod 802 to rotate, and the ratchet 803 and the gear 804 rotate accordingly. The gear 804 drives the meshing bar 7 to rotate, and the meshing bar 7 moves the control rod 6. When it moves to the appropriate position, the reverse ratchet plate 805 can limit the ratchet 803.

[0035] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0036] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0037] 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 plaster saw, comprising a handle (1), characterized in that: A telescopic rod (3) is welded to one side of the gripping rod (1) through a connecting rod (2); a sliding groove is provided on the surface of the telescopic rod (3); a plurality of grooves are provided inside the sliding groove; a limiting component (4) is clamped inside the groove; an adjustment plate (5) is fixedly installed at both ends of the telescopic rod (3); a sliding groove is provided on the surface of the adjustment plate (5); a control rod (6) is slidably connected inside the sliding groove; an embedding groove is provided on the surface of the control rod (6); an engaging strip (7) is provided inside the embedding groove; an adjustment component (8) is meshed on the surface of the engaging strip (7); a saw blade (9) is sleeved on the surface of the control rod (6).

2. A gypsum saw according to claim 1, characterized in that: The limiting assembly (4) comprises a mounting plate (401) provided inside the telescopic rod (3), a hydraulic rod (402) being fixedly mounted on the surface of the mounting plate (401), a spring (403) being sleeved on the surface of the hydraulic rod (402), and a limiting block (404) being fixedly connected to one end of the hydraulic rod (402).

3. A gypsum saw according to claim 1, characterized in that: The adjustment assembly (8) comprises a mounting groove on the surface of the adjustment plate (5), a protective frame (801) being fixedly mounted on the surface of the mounting groove, a rotation groove being formed in the middle of the surface of the protective frame (801), a rotation rod (802) being rotationally connected inside the rotation groove, a ratchet (803) being fixedly mounted on the surface of the rotation rod (802), a gear (804) being fixedly mounted on one end of the rotation rod (802), a reverse ratchet plate (805) being fixedly mounted in the middle of the surface of the mounting groove, and a rotation plate (806) being fixedly mounted on the other end of the rotation rod (802).

4. A gypsum saw according to claim 3, characterized in that: A through groove is provided in the middle of the surface of the installation groove, and the size of the through groove is adapted to the rotating rod (802).

5. A plaster saw according to claim 3, characterized in that: A through slot is provided in the middle of the surface of the reverse ratchet plate (805), the size of which matches the rotating rod (802), and a ratchet (803) is rotatably connected to the surface of the reverse ratchet plate (805).

6. A plaster saw according to claim 1, characterized in that: The surface of the grip rod (1) is sleeved with an anti-skid cover for preventing skidding, and the surface of the anti-skid cover is coated with a waterproof coating.

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