Sand nailing device

Abstract

The utility model discloses an emery nail device, including the emery nail pen body and can flexible change emery nail needle, the emery nail pen body bottom thread is equipped with the connecting cap, the connecting cap bottom is communicated with the elastic plate, the elastic plate is provided with two sets, and the two sets of elastic plate do not contact, and the emery nail pen body is equipped with the connecting cap. A plurality of groups of inner clamping grooves are formed in the inner arc surface of the elastic plate at equal intervals; the sand nailing needles are inserted into the two sets of elastic plates, and a plurality of sets of annular protruding blocks are fixedly installed on the outer arc faces of the sand nailing needles. An annular protruding block arranged on the outer arc face of the sand nailing needle is matched with an inner clamping groove in the inner arc face of the elastic plate to improve the stability of the sand nailing needle inserted into the elastic plate, a top end block of the sand nailing needle rotates after being inserted into the limiting plate, and a positioning block is inserted into the clamping groove to complete positioning. And at the moment, the anti-skid columns installed on the outer arc surfaces of the sand nailing needles are correspondingly inserted into the intervals in the elastic plates, loosening of the sand nailing needles in the using process can be avoided, and flexible dismounting and mounting of the sand nailing needles can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of jewelry processing equipment, in particular to a sand-pinning device. Background Art

[0002] With the improvement of people's living standards, jewelry has become a part of people's daily wear, especially rings, necklaces and other jewelry, which are common jewelry.

[0003] The prior art sand-pinning pen can only be clamped with a special clamping tool during actual operation. The sand-pinning needle often needs to be replaced to cope with different situations. However, the replacement of the sand-pinning needle is very complicated and requires the sand-pinning pen to be disassembled, thereby reducing production efficiency.

[0004] According to patent number CN 207127682 U, a sand nailing device is disclosed, characterized in that it includes a shell, a sand nailing needle, a spring, a rubber ring, a support member and a pneumatic motor, wherein the sand nailing needle, the spring, the rubber ring and the support member are coaxially placed in the inner cavity of the shell; the sand nailing needle includes a needle head and a sand needle body, and the needle head is connected to the sand needle body by a thread; the spring, the rubber ring and the support member are sleeved on the sand nailing needle; the pneumatic motor is connected to the sand nailing needle; the needle head is connected to the sand needle body by a thread, and the needle head can be removed from the sand needle body for replacement, and the purpose of replacing the needle head can be achieved without disassembling the shell, thereby improving production efficiency. In addition, by adjusting the distance between the first support member and the second support member, the height of the support member can be changed, and the amplitude of the sand nailing needle relative to the shell is changed, so that the sand nailing device is more stable when working.

[0005] The prior art still has some problems during use, and the stability of the sand-pinning needle after replacement cannot be guaranteed, which makes it easy to cause scratches during jewelry processing, so a sand-pinning device is needed now. Utility Model Content

[0006] The utility model aims to provide a sand nailing device, which limits the position of the sand nailing needle by applying force to the elastic plate through a positioning sleeve, and efficiently replaces the sand nailing needle by removing the positioning sleeve, so as to solve the technical problems mentioned in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand-pinning device, comprising a sand-pinning pen body and a replaceable sand-pinning needle, wherein a connecting cap is threadedly installed at the bottom of the sand-pinning pen body, an elastic plate is connected and installed at the bottom of the connecting cap, two groups of the elastic plates are provided, and the two groups of the elastic plates are not in contact with each other, and a plurality of groups of internal slots are equidistantly opened on the inner arc surface of the elastic plate;

[0008] The sand nailing needle is inserted into the two sets of elastic plates, and the outer arc surface of the sand nailing needle is provided with a plurality of sets of annular protrusions fixedly installed, and the outer arc surface of the sand nailing needle is symmetrically installed with two sets of anti-slip columns;

[0009] A positioning sleeve is sleeved and installed on the outer arc surface of the elastic plate, and the inner wall of the positioning sleeve is pressed tightly against the outer arc surface of the elastic plate.

[0010] Preferably, a connecting tube is provided at the bottom of the nail sand pen body, two groups of limit plates are provided inside the connecting tube, and a group of positioning blocks are respectively installed on the corresponding sides of the two groups of limit plates.

[0011] Preferably, the connecting cap is threadedly installed with the connecting pipe, a plurality of groups of annular grooves are formed on the outer arc surface of the connecting cap, and a group of stress-bearing grooves are formed on the outer arc surface of each group of the elastic plates.

[0012] Preferably, a connecting block is fixedly mounted on the top of the sand nailing needle, and slots are symmetrically provided on both sides of the connecting block. The connecting block is inserted into the limiting plate, and the slots are rotatably engaged with the positioning block.

[0013] Preferably, the annular protrusion is correspondingly inserted into the inner slot, and the two groups of anti-skid columns are respectively rotated and inserted into the gap between the two groups of elastic plates.

[0014] Preferably, the positioning sleeve is a circular tube and a conical tube spliced ​​together, the inner wall of the circular tube is fixedly and symmetrically mounted with two sets of tightening beads, the tightening beads slide against the inner wall of the force-bearing groove, the inner wall of the conical tube is fixedly mounted with a positioning protrusion, and the positioning protrusion is plugged into the annular groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The stability of the sand nailing needle after being inserted into the elastic plate is improved by cooperating with the annular protrusion on the outer arc surface of the sand nailing needle and the inner groove on the inner arc surface of the elastic plate. The connecting block at the top of the sand nailing needle is rotated after being inserted into the limit plate, so that the positioning block is inserted into the groove to complete the positioning. At this time, the anti-slip column installed on the outer arc surface of the sand nailing needle corresponds to the interval inserted into the elastic plate, which can avoid loosening during the use of the sand nailing needle and ensure flexible disassembly and installation of the sand nailing needle.

[0017] 2. After the sand nailing needle is inserted into the elastic plate and fixed, a positioning sleeve is sleeved on the outer arc surface of the elastic plate. The elastic plate is tightened by cooperating with the tightening beads on the inner arc surface of the positioning sleeve and the force groove on the outer arc surface of the elastic plate, so as to further tighten the sand nailing needle and ensure the stability of the sand nailing needle. When replacing the sand nailing needle, you only need to pull out the positioning sleeve and rotate the sand nailing needle to remove the sand nailing needle from the inside of the device, thereby improving the efficiency of replacing the sand nailing needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the disassembly of the installation structure of the connecting cap of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the limit plate of the utility model;

[0022] Figure 5 This is a schematic diagram of the overall structure of the sand nail needle of the utility model;

[0023] Figure 6 This is a schematic diagram of the cutaway structure of the positioning sleeve of the utility model.

[0024] In the figure: 1. Sanding pen body; 2. Connecting tube; 3. Limiting plate; 4. Positioning block; 5. Connecting cap; 6. Annular groove; 7. Elastic plate; 8. Inner clamping groove; 9. Force bearing groove; 10. Sanding needle; 11. Connecting block; 12. Clamping groove; 13. Annular protrusion; 14. Anti-skid column; 15. Positioning sleeve; 16. Positioning protrusion; 17. Tightening bead. 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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] The utility model provides: a sand nailing device, such as Figure 1-Figure 6 As shown, it includes a sand-pinning pen body 1 and a replaceable sand-pinning needle 10. A connecting cap 5 is threadedly installed at the bottom of the sand-pinning pen body 1. An elastic plate 7 is installed at the bottom of the connecting cap 5. Two groups of elastic plates 7 are provided, and the two groups of elastic plates 7 do not contact each other. The inner arc surface of the elastic plate 7 is equidistantly provided with a plurality of groups of inner slots 8; the sand-pinning needle 10 is inserted into the two groups of elastic plates 7, and a plurality of groups of annular protrusions 13 are fixedly installed on the outer arc surface of the sand-pinning needle 10. Two groups of anti-skid columns 14 are symmetrically installed on the outer arc surface of the sand-pinning needle 10; a positioning sleeve 15 is sleeved and installed on the outer arc surface of the elastic plate 7, and the inner wall of the positioning sleeve 15 is pressed against the outer arc surface of the elastic plate 7.

[0027] Preferably, a connecting tube 2 is provided at the bottom of the nail sand pen body 1, and two groups of limiting plates 3 are provided inside the connecting tube 2. A group of positioning blocks 4 are respectively installed on the corresponding sides of the two groups of limiting plates 3. The connecting tube 2 installed at the bottom of the nail sand pen body 1 is used to connect the connecting cap 5 to ensure the stable insertion of the nail sand needle 10. At the same time, the limiting plate 3 and the positioning block 4 installed inside the connecting tube 2 cooperate with the connecting block 11 and the slot 12 at the top of the nail sand needle 10. After the nail sand needle 10 is inserted into the limiting plate 3, it can be rotated to make the positioning block 4 snap into the slot 12, thereby completing the limitation of the nail sand needle 10 and ensuring the flexibility of disassembly of the nail sand needle 10.

[0028] Furthermore, the connecting cap 5 is threadedly installed with the connecting pipe 2, and a plurality of groups of annular grooves 6 are provided on the outer arc surface of the connecting cap 5, and a group of force grooves 9 are provided on the outer arc surface of each group of elastic plates 7. The annular grooves 6 provided on the outer arc surface of the connecting cap 5 cooperate with the positioning protrusions 16 to ensure that the positioning sleeve 15 as a whole can be limited. At the same time, two groups of elastic plates 7 are provided at the bottom of the connecting cap 5, so that the two groups of elastic plates 7 can be deformed during the force process to further lock the use position of the sand nail needle 10. At the same time, the force grooves 9 provided on the outer arc surface of the elastic plate 7 can cooperate with the tightening beads 17. During the insertion and fixing process of the positioning sleeve 15, the tightening beads 17 slide inside the force grooves 9. Since the force grooves 9 are conical grooves, the stability of the elastic plates 7 can be guaranteed during the fixing process of the connecting cap 5.

[0029] Furthermore, a connecting block 11 is fixedly installed on the top of the sand-pinching needle 10, and slots 12 are symmetrically provided on both sides of the connecting block 11. The connecting block 11 is inserted into the limiting plate 3, and the slots 12 are rotated to engage with the positioning block 4. The connecting block 11 and the slots 12 at the top of the sand-pinching needle 10 can be inserted into the limiting plate 3 to complete the limiting of the sand-pinching needle 10, thereby improving the flexibility of disassembling the sand-pinching needle 10.

[0030] It is worth mentioning that the annular protrusion 13 is correspondingly inserted into the inner groove 8, and the two groups of anti-skid columns 14 are respectively rotated and inserted into the gap between the two groups of elastic plates 7. The annular protrusion 13 installed on the outer arc surface of the sand nailing needle 10 is inserted into the inner groove 8 to further ensure the stability of the sand nailing needle 10 after it is inserted into the elastic plate 7, and when the sand nailing needle 10 rotates, the groove 12 cooperates with the positioning block 4 to engage, and the anti-skid column 14 will be inserted into the gap between the two groups of elastic plates 7 to avoid rotation of the sand nailing needle 10 during use.

[0031] Specifically, the positioning sleeve 15 is a circular tube and a conical tube spliced ​​and installed, and two groups of tightening beads 17 are fixedly and symmetrically installed on the inner wall of the circular tube. The tightening beads 17 slide and press against the inner wall of the force-bearing groove 9, and a positioning protrusion 16 is fixedly installed on the inner wall of the conical tube. The positioning protrusion 16 is plugged and installed with the annular groove 6. After the positioning sleeve 15 is inserted into the outside of the elastic plate 7 and fixed, it presses against the elastic plate 7 to deform the elastic plate 7 to bite the sand nailing needle 10. At this time, the positioning sleeve 15 is subjected to force on the elastic plate 7, so that the position of the anti-slip column 14 is fixed and cannot be rotated. The sand nailing needle 10 can only be rotated and taken out after the positioning sleeve 15 is removed, thereby improving the stability of the replacement and use of the sand nailing needle 10 and the convenience during the replacement process.

[0032] 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 sand nailing device, characterized in that: The invention comprises a sand-tack pen body (1) and a replaceable sand-tack needle (10), wherein a connecting cap (5) is threadedly installed at the bottom of the sand-tack pen body (1), an elastic plate (7) is connected and installed at the bottom of the connecting cap (5), two groups of the elastic plates (7) are provided, and the two groups of the elastic plates (7) are not in contact with each other, and a plurality of groups of inner slots (8) are equidistantly provided on the inner arc surface of the elastic plate (7); The sand-pinning needle (10) is inserted into the two sets of elastic plates (7), and the outer arc surface of the sand-pinning needle (10) is provided with a plurality of sets of annular protrusions (13) fixedly installed, and the outer arc surface of the sand-pinning needle (10) is symmetrically installed with two sets of anti-slip columns (14); A positioning sleeve (15) is sleeved and installed on the outer arc surface of the elastic plate (7), and the inner wall of the positioning sleeve (15) is pressed tightly against the outer arc surface of the elastic plate (7).

2. A sand-pinning device according to claim 1, characterized in that: A connecting tube (2) is arranged at the bottom of the nail sand pen body (1), two groups of limit plates (3) are arranged inside the connecting tube (2), and a group of positioning blocks (4) are respectively installed on the corresponding sides of the two groups of limit plates (3).

3. A sand-pinning device according to claim 2, characterized in that: The connecting cap (5) is threadedly mounted on the connecting pipe (2); a plurality of groups of annular grooves (6) are formed on the outer arc surface of the connecting cap (5); and a group of force-bearing grooves (9) are formed on the outer arc surface of each group of elastic plates (7).

4. A sand-pinning device according to claim 3, characterized in that: A connecting block (11) is fixedly mounted on the top of the sand nailing needle (10), and clamping grooves (12) are symmetrically provided on both sides of the connecting block (11). The connecting block (11) is inserted into the interior of the limiting plate (3), and the clamping grooves (12) are rotatably clamped with the positioning block (4).

5. A sand-pinning device according to claim 4, characterized in that: The annular protrusion (13) is correspondingly inserted into the inner slot (8), and the two groups of anti-skid columns (14) are respectively rotated and inserted into the gap between the two groups of elastic plates (7).

6. A sand-pinning device according to claim 5, characterized in that: The positioning sleeve (15) is a circular tube and a conical tube spliced ​​together, two groups of abutment beads (17) are fixedly and symmetrically installed on the inner wall of the circular tube, the abutment beads (17) slide and abut against the inner wall of the force-bearing groove (9), and a positioning protrusion (16) is fixedly installed on the inner wall of the conical tube, and the positioning protrusion (16) is plugged into the annular groove (6).

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