Sand shovel for casting steel casting

Abstract

The utility model discloses a sand shovel for casting steel castings, which relates to the technical field of steel castings and comprises a connecting rod, a casing is sleeved on the outer surface of the bottom of the connecting rod, a sliding groove is arranged on one side of the casing, a pressing plate is sleeved on the surface of the casing, and a shovel head is arranged at the bottom of the connecting rod. A fixing ring is arranged on the pressing plate and attached to the top of the mounting block, an extending block is arranged at the bottom of the fixing ring, connecting pieces are arranged on the two sides of the extending block, bolts are arranged on the connecting pieces close to the back face, inserting holes are formed in the positions, close to the mounting block, of the sliding grooves, and springs are arranged on the connecting pieces in the direction facing the extending block. When gravels in a box are pressed through the shovel head, the pressing plate is loosened from the clamping hook and pushed to be attached to the installation block, the plug pin is inserted into the insertion hole through the spring to be fixed, the bottom of the pressing plate is attached to the shovel head, the surface area of the back of the shovel head is increased, gravels are flapped, a larger area can be pressed at a time, and the pressing efficiency is higher.

Description

Technical Field

[0001] This utility model belongs to the field of cast steel parts technology, specifically, it relates to a sand shovel for casting cast steel parts. Background Technology

[0002] Sand casting is a casting method that produces castings in sand molds. Steel, iron, and most non-ferrous alloy castings can be obtained using sand casting. Because the molding materials used in sand casting are inexpensive and readily available, and the mold manufacturing is simple, it can adapt to single-piece production, batch production, and mass production of castings. For a long time, it has been a basic process in casting production.

[0003] Chinese patent CN221018575U discloses a sand shovel for casting steel parts, including a shovel body and a sand box. The sand box contains a steel casting mold. A first handle is detachably connected to the top of the shovel body, and a second handle is detachably connected to the top of the first handle. The first handle is equipped with a foot support assembly for compacting the sand particles in the sand box. The sand shovel of the above-mentioned prior art uses the foot support to press the sand box, but the foot support is above the shovel head and its width is the same as the shovel head, so the pressing surface area is limited. In a large sand box, the operator needs to press repeatedly, which is quite laborious.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a sand shovel for casting steel parts, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A sand shovel for casting steel parts includes: a connecting rod, a sleeve fitted on the bottom outer surface of the connecting rod, a groove on one side of the sleeve, a top ring on the top of the sleeve, a pressure plate fitted on the surface of the sleeve, a shovel head at the bottom of the connecting rod, an installation block between the shovel head and the pressure plate, an internally threaded hole inside the connecting rod, a tail rod inside the internally threaded hole, and a handle fixedly connected to the end of the tail rod.

[0008] Optionally, the top ring is provided with a rotating sleeve near the bottom, the bottom of the rotating sleeve is fixedly connected with a hook, the top of the pressure plate is provided with a slot corresponding to the position of the hook, and the top of the pressure plate is fixedly connected with a pedal.

[0009] Optionally, the pressure plate is fitted with a fixing ring at the top of the mounting block, an extension block at the bottom of the fixing ring, connecting pieces on both sides of the extension block, a pressing post near the front of the connecting piece, a pin near the back of the connecting piece, an insertion hole near the mounting block of the sliding groove, and a spring on the connecting piece facing the extension block.

[0010] Optionally, an extension plate is fixedly connected to the front of the pressure plate, a movable groove is provided in the center of the extension plate, a lower pressure plate is provided inside the movable groove, an upper pressure plate is provided above the lower pressure plate, a fastener is installed through the center of the upper pressure plate and the lower pressure plate, and a fixing threaded hole is provided near the top of the front of the pedal.

[0011] Optionally, a limiting cavity is formed on the inner side of the connecting rod near the top, and a locking pin is provided on the bottom side of the tail rod, with a spring on the side of the locking pin.

[0012] Optionally, limit holes are evenly provided on both sides of the movable groove, and the lower pressure plate is embedded in the limit holes.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0014] 1. When the sand shovel used for casting this steel casting part presses the sand and gravel in the box with the shovel head, the pressure plate is released from the hook and pushed to fit the mounting block. The pin is fixed by inserting it into the hole through the spring. The bottom of the pressure plate fits against the shovel head to increase the surface area of ​​the back of the shovel head to beat the sand and gravel. It can press a larger area at once and has higher pressing efficiency. When the pressure plate is fixed by the hook at the top, the top pedal can assist the operator to step on it to apply force. The overall use is more labor-saving and convenient.

[0015] 2. The sand shovel for casting steel moves on the housing via a pressure plate. Fasteners inside the extension plate are locked in the limiting holes for fixation. Fastener screws are screwed into the threaded holes to fix the pressure plate, thereby adjusting the position of the pedal on the pressure plate. The pedal height can be adjusted to the optimal position according to the operator's height. At the same time, the tail rod is rotated to lengthen the whole, so that the user can get the best experience and save effort when shoveling sand.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] In the picture:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 for Figure 1 Enlarged view of point A shown;

[0021] Figure 3 for Figure 1 Enlarged view of point B shown;

[0022] Figure 4 This is a schematic diagram of the structure of this utility model from another perspective;

[0023] Figure 5 for Figure 4 Enlarged view of point C shown;

[0024] Figure 6 This is a cross-sectional view of the area near the socket of this utility model;

[0025] Figure 7 This is a cross-sectional view of the vicinity of the SIM card pin of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Connecting rod; 101. Internal threaded hole; 102. Limiting cavity; 2. Sleeve; 201. Slide groove; 202. Insertion hole; 3. Top ring; 301. Rotating sleeve; 302. Hook; 4. Shovel head; 401. Mounting block; 5. Pressure plate; 501. Fixing ring; 502. Extension block; 503. Connecting piece; 504. Pressing post; 505. Pin; 506. Spring one; 507. Slot; 508. Pedal; 509. Fixing threaded hole; 6. Extension plate; 601. Movable groove; 602. Limiting hole; 603. Lower pressure plate; 604. Upper pressure plate; 605. Fastener; 7. Tail rod; 701. Locking pin; 702. Spring two; 703. Handle.

[0028] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] Please see Figure 1-7 As shown in the figure, this embodiment provides a sand shovel for casting steel parts, including: a connecting rod 1.

[0031] like Figure 1 , 3As shown in Figure 7, in this embodiment, a housing 2 is fitted onto the bottom outer surface of the connecting rod 1. A groove 201 is provided on one side of the housing 2. A top ring 3 is provided on the top of the housing 2. A pressure plate 5 is fitted onto the surface of the housing 2. A shovel head 4 is provided at the bottom of the connecting rod 1. An installation block 401 is provided between the shovel head 4 and the pressure plate 5. An internal threaded hole 101 is provided inside the connecting rod 1. A tail rod 7 is provided inside the internal threaded hole 101. A handle 703 is fixedly connected to the end of the tail rod 7. The shovel head 4 is installed by mounting... The mounting block 401 is connected to the connecting rod 1. The pressure plate 5 can move on the housing 2, with one end abutting against the mounting block 401, so that the bottom surface of the pressure plate 5 fits against the bottom surface of the shovel head 4, thereby aligning and splicing the two, increasing the surface area of ​​the back of the shovel head 4 to beat the gravel, and pressing a larger area at once. As the tail rod 7 rotates, its surface thread and internal thread hole 101 engage and push out from the internal thread hole 101, thereby extending the length of the entire sand shovel. The operator holds the handle 703 to work.

[0032] like Figure 1-3 As shown, in this embodiment, a rotating sleeve 301 is provided near the bottom of the top ring 3. A hook 302 is fixedly connected to the bottom of the rotating sleeve 301. A slot 507 is provided on the top of the pressure plate 5 corresponding to the position of the hook 302. A pedal 508 is fixedly connected to the top of the pressure plate 5. When the sand is pressed and needs to be shoveled, the entire pressure plate 5 is pulled upward. The bottom hook 302 is inserted into the slot 507 of the pressure plate 5. The circle of the opening on the surface of the slot 507 is not continuous, but there is an annular groove at the bottom. By inserting the hook 302 into the annular groove, the rotating sleeve 301 is rotated so that the hook 302 hooks the edge of the slot 507 to fix the pressure plate 5. Thus, the pedal 508 is fixed at the highest point, that is, below the top ring 3. The operator steps on the pedal 508 and inserts the shovel head 4 into the sand. The pedal 508 provides leverage, making it easier to insert the shovel head 4 into the sand for shoveling.

[0033] like Figure 3 , 6As shown, in this embodiment, the pressure plate 5 is fitted with a fixing ring 501 at the top of the mounting block 401, an extension block 502 is provided at the bottom of the fixing ring 501, connecting pieces 503 are provided on both sides of the extension block 502, a pressing post 504 is provided near the front of the connecting piece 503, a pin 505 is provided near the back of the connecting piece 503, an insertion hole 202 is provided in the slide groove 201 near the mounting block 401, and a spring 506 is provided on the connecting piece 503 facing the extension block 502; wherein, when the pressure plate 5 is pushed to the bottom and fitted with the mounting block 401, the pin 505 slides in the slide groove 201, compressing the connecting piece 503. The spring 506 on the back retracts the pin 505 into the slide groove 201 until it pops out at the insertion hole 202. The pin 505 is fixed in the insertion hole 202, thereby installing the pressure plate 5 on the top of the shovel head 4. Pressing the pressing posts 504 on both sides causes the extension plate 6 to squeeze the spring 506, which drives the pin 505 to move towards the limit block 502 and disengage from the insertion hole 202, making the entire pressure plate 5 in an active state. Then, the pressure plate 5 is pushed upward to the top ring 3. Rotating the rotating sleeve 301 allows the hook 302 to engage in the slot 507 to fix the pedal 508, thereby changing the position of the pressure plate 5 and realizing the change of function.

[0034] like Figure 1-5 As shown, in this embodiment, the pressure plate 5 is fixedly connected to the front of the extension plate 6. The extension plate 6 has a movable groove 601 in the center. The movable groove 601 is provided with a lower pressure plate 603. The upper pressure plate 604 is provided above the lower pressure plate 603. The upper pressure plate 604 and the lower pressure plate 603 are connected by a fastener 605 through the center. The pedal 508 has a fixing threaded hole 509 near the top on the front. The upper pressure plate 604 and the lower pressure plate 604 are pulled by locking the fastener 605, so that they clamp the top of the movable groove 601 and fix the position of the fastener 605. At the same time, the lower end of the fastener 605 is screwed into the fixing threaded hole 509 of the pedal 508 facing the extension plate 6, so that the pressure plate 5 is fixed by the fastener 605. The pressure plate 5 can be installed in the corresponding position under the extension plate 6. The distance from the pedal 508 to the shovel head 4 can be adjusted. The tail rod 7 can be rotated in the internal threaded hole 101 to adjust the length of the tail rod 7. The length of the entire sand shovel can be adjusted to obtain the best user experience.

[0035] like Figure 7As shown, in this embodiment, a limiting cavity 102 is formed on the inner side of the connecting rod 1 near the top. A locking pin 701 is provided on the bottom side of the tail rod 7, and a second spring 702 is provided on the side of the locking pin 701. The limiting cavity 102 is chamfered, with an inclined surface facing the shovel head 4 and a vertical surface facing the handle 703. After the tail rod 7 rotates for a long time, the locking pin 701 at the tail is pushed into the limiting cavity 102 by the second spring 702, thus locking it on the vertical surface of the limiting cavity 102 and preventing the tail rod 7 from being turned out, thus preventing the tail rod 7 from detaching. When the tail rod 7 is turned back, the locking pin 701 presses against the inclined surface to compress the second spring 702 and further contract, eventually retracting completely, so that the tail rod 7 can be reduced in length.

[0036] like Figure 1 , 2 As shown, in this embodiment, limit holes 602 are evenly opened on both sides of the movable groove 601, and the lower pressure plate 603 is embedded in the limit holes 602. The lower pressure plate 603 is pulled upward and restricted in the corresponding limit hole 602 by the fastener 605, which at the same time restricts the fastener 605 and the pressure plate 5 from moving, thereby fixing the pedal 508 more tightly. It will not loosen even if the operator steps on it repeatedly. When adjusting the position of the pressure plate 5, the lower pressure plate 603 is transferred from the limit hole 602 to the movable groove 601, and a new limit hole 602 is found in the corresponding position. The lower pressure plate 603 enters and is attached upward to the extension plate 6. The fastener 605 is then locked to fix it.

[0037] Working principle: When using the sand shovel, the operator needs to adjust the length of the shovel beforehand. Rotating the tail rod 7 allows it to be lengthened or shortened by engaging the surface thread with the internal thread hole 101. The pressure plate 5 moves on the housing 2, and the pedal 508 is positioned to align with the top ring 3. Rotating the rotating sleeve 301 allows the hook 302 to engage in the slot 507 to secure the pressure plate 5. The top pedal 508 is fixed and used to assist the foot pedal in pressing the shovel head 4 when shoveling sand. When the shovel head 4 presses down on the sand and gravel inside the box, the pressure plate... Plate 5 is released from hook 302 and pushed to fit the mounting block 401. Pin 505 is fixed by inserting into the insertion hole 202 through spring 506. The bottom of the pressure plate 5 fits against the shovel head 4 to increase the surface area of ​​the back of the shovel head for patting the gravel. When it is necessary to adjust the position of the pressure plate 5, the fastener 605 in the extension plate 6 is locked in the limiting hole 602 for fixation. The fastener 605 screw is screwed into the fixing threaded hole 509 to fix the pressure plate 5, thereby adjusting the position of the pressure plate 5 on the extension plate 6.

[0038] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A sand shovel for casting steel parts, characterized in that, include: A connecting rod (1) is fitted with a housing (2) on the bottom outer surface of the connecting rod (1). A sliding groove (201) is provided on one side of the housing (2). A top ring (3) is provided on the top of the housing (2). A pressure plate (5) is fitted on the surface of the housing (2). A shovel head (4) is provided at the bottom of the connecting rod (1). An installation block (401) is provided between the shovel head (4) and the pressure plate (5). An internal threaded hole (101) is provided inside the connecting rod (1). A tail rod (7) is provided inside the internal threaded hole (101). A handle (703) is fixedly connected to the end of the tail rod (7).

2. The sand shovel for casting steel parts according to claim 1, characterized in that, The top ring (3) is provided with a rotating sleeve (301) near the bottom. The bottom of the rotating sleeve (301) is fixedly connected with a hook (302). The top of the pressure plate (5) is provided with a slot (507) corresponding to the position of the hook (302). The top of the pressure plate (5) is fixedly connected with a pedal (508).

3. The sand shovel for casting steel parts according to claim 1, characterized in that, The pressure plate (5) is fitted with a fixing ring (501) on the top of the mounting block (401). An extension block (502) is provided at the bottom of the fixing ring (501). Connecting pieces (503) are provided on both sides of the extension block (502). A pressing post (504) is provided near the front of the connecting piece (503). A pin (505) is provided near the back of the connecting piece (503). An insertion hole (202) is opened in the slide groove (201) near the mounting block (401). A spring (506) is provided on the connecting piece (503) facing the extension block (502).

4. The sand shovel for casting steel parts according to claim 2, characterized in that, An extension plate (6) is fixedly connected to the front of the pressure plate (5). An movable groove (601) is provided in the center of the extension plate (6). A lower pressure plate (603) is provided inside the movable groove (601). An upper pressure plate (604) is provided above the lower pressure plate (603). Fasteners (605) are installed through the center of the upper pressure plate (604) and the lower pressure plate (603). A fixing threaded hole (509) is provided on the front of the pedal (508) near the top.

5. A sand shovel for casting steel parts according to claim 1, characterized in that, A limiting cavity (102) is opened on the inner side of the connecting rod (1) near the top, and a locking pin (701) is provided on the bottom side of the tail rod (7), and a spring (702) is provided on the side of the locking pin (701).

6. A sand shovel for casting steel parts according to claim 4, characterized in that, Limiting holes (602) are evenly provided on both sides of the movable groove (601), and the lower pressure plate (603) is embedded in the limiting holes (602).

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