Needle withdrawing device with protective cover

Abstract

The utility model discloses a needle withdrawing device with a protective cover, which comprises a handle, the protective cover, a connecting piece and a needle withdrawing piece, the front end of the handle is provided with a mounting groove, the connecting piece is mounted in the mounting groove, and the needle withdrawing piece is mounted on the connecting piece; at least two sliding grooves are formed in the handle, a protection ring is arranged at the front end of the protection cover, at least two extending frames are arranged on the protection ring, and the extending frames are arranged in the sliding grooves of the handle and can move along the sliding grooves. And the position of the protection ring is switched between the connecting piece and the head of the needle withdrawing piece. The slidable protective cover is arranged on the outer side of the handle of the needle withdrawing device, normal needle withdrawing operation of the needle withdrawing device is not interfered, the needle withdrawing piece can be protected when the needle withdrawing device is idle, and the needle withdrawing piece is prevented from being damaged; the single needle withdrawing device can be provided with needle withdrawing pieces and connecting pieces of different specifications, the multifunctional needle withdrawing requirement is met, and the use cost of the needle withdrawing device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of needle removers, in particular to a needle remover with a protective cover. Background Art

[0002] The connector is a component that electronic engineering technicians often come into contact with. Its function is very simple: to build a bridge of communication between blocked or isolated circuits in the circuit, so that the current can flow and the circuit can achieve the predetermined function. The contact is the core part of the connector to complete the electrical connection function. Generally, the contact consists of a pin and a socket, and the electrical connection is completed by the insertion of the pin and the socket. Connectors are widely used in aircraft, automobiles, ships, high-speed railways, subways, large equipment and other fields. Without damaging the contact or the shell, the contact can be removed from the connector shell, which is also a key standard for high-quality wire harness processing.

[0003] The needle remover generally includes a handle, a push rod and a needle remover head. The push rod is placed inside the handle, and the needle remover is movably mounted on the push rod. When removing needles from different terminals, different needle remover heads need to be selected, such as sheet-like single-needle structure, double-needle structure, round tube structure, heterogeneous structure, etc. Because the shapes and sizes of the contacts are different or the fixing methods of the contacts in the connection are different, users need to replace different needle remover heads to adapt to different applications. However, this type of needle-type needle remover on the market is usually an integrated structure and has no protective device. The needle remover head may hurt the human body or be damaged due to improper storage and access. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a needle remover with a protective cover, which has a simple structure and can utilize the protective cover to protect people from being harmed and prolong the service life of the needle remover head.

[0005] To this end, the technical solution of the utility model is: a needle withdrawer with a protective cover, comprising a handle, a protective cover, a connecting piece and a needle withdrawing piece, the front end of the handle is provided with a mounting groove, the connecting piece is installed in the mounting groove, and the needle withdrawing piece is installed on the connecting piece; at least two sliding grooves are provided on the handle, a protective ring is provided at the front end of the protective cover, at least two extension frames are provided on the protective ring, the extension frames are placed in the sliding grooves of the handle, and can move along the sliding grooves; the protective ring switches positions between the connecting piece and the head of the needle withdrawing piece.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: a protruding sliding piece is provided on the inner side of the extension frame, the sliding piece is placed in the sliding groove, and the two are slidably matched; the outer edge of the extension frame is transitionally connected with the handle surface; an avoidance groove and a positioning block are provided at the end of the extension frame, and a snap is provided on the outer side of the positioning block.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the radial cross-section of the slide groove is T-shaped, and a positioning groove is provided at the end of the slide groove to cooperate with the positioning block at the end of the extension frame.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the handle as a whole is a hollow structure, the middle of the handle end is an opening, slots are provided on both sides of the opening, the slots are opposite to the end of the slide slot, and snap-in slots are provided on both sides of the end of the slide slot; a bottom cover is fixed to the end of the handle, the middle of the bottom is inserted into the opening at the end of the handle, and clamping blocks are provided on both sides of the bottom cover, and the clamping blocks are fixed in the snap-in slots through the slots.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the clamping block on the side of the bottom cover is composed of two L-shaped blocks, the bottom of the two L-shaped blocks are provided with clamping hooks, the opposite sides of the two L-shaped blocks are provided with pin grooves, and the fixing pin is inserted between the two L-shaped blocks, so that the clamping hooks of the two L-shaped blocks are respectively clamped into the clamping grooves on both sides of the slide groove.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the front end of the connecting member cooperates with the needle withdrawal member, and the two are fixedly connected.

[0011] The structures of the connector and the needle withdrawal member of the utility model are not fixed. The needle withdrawal members of different specifications can be replaced according to the use requirements, and then the appropriate connector can be selected according to the structure of the needle withdrawal member, such as a tubular needle withdrawal member. The connector can be a spring-clip structure. The connector is provided with a cylindrical clamping part at one end facing the needle withdrawal member. The clamping part is composed of a plurality of clips. There is a gap between adjacent clips. The needle withdrawal member is inserted into the clamping part and is locked and fixed by a locking nut. Alternatively, when the needle withdrawal member is a thin-sheet structure, a step surface is provided at one end of the connector facing the needle withdrawal member, and the end of the needle withdrawal member is placed on the step surface and locked and fixed by a bolt.

[0012] At the same time, you can also choose a needle withdrawal piece with an ejector pin. The push rod is inserted from the end of the handle, and the ejector pin is inserted into the needle withdrawal piece from the assembly hole at the front end of the handle. The push rod pushes the ejector pin to move, thereby better realizing the needle withdrawal function.

[0013] A slidable protective cover is set on the outside of the handle, and the protective ring can be moved to the outside of the needle withdrawal part head to prevent the needle withdrawal part from being broken or damaged. When in use, the protective ring is pushed toward the handle to move the protective cover to both sides of the handle, and the needle withdrawal part is exposed as a whole, which does not hinder the needle withdrawal operation. At the same time, the bottom cover is fixed at the end of the handle and fixed by a fixing pin to prevent the protective cover from falling off.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. A sliding protective cover is provided on the outside of the handle of the needle withdrawer, which does not interfere with the normal needle withdrawal operation of the needle withdrawer, and can protect the needle withdrawal parts when the needle withdrawer is idle to prevent damage to the needle withdrawal parts;

[0016] 2. A single needle extractor can be equipped with needle extractors and connectors of different specifications, which is convenient for users to replace needle extractors of different specifications according to their needs, meet the needs of multi-functional needle extractors, improve versatility, and reduce the cost of using the needle extractor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings.

[0018] Figure 1 It is a structural schematic diagram of Example 1;

[0019] Figure 2 It is a structural side view of Example 1;

[0020] Figure 3 It is a structural cross-sectional view of Example 1;

[0021] Figure 4 This is a schematic diagram of the structure of Example 1 in an idle state;

[0022] Figure 5 It is an exploded view of the parts of Example 1;

[0023] Figure 6 This is a schematic diagram of the structure of the protective cover of Example 1;

[0024] Figure 7 It is a structural schematic diagram of Example 2;

[0025] Figure 8 It is a structural schematic diagram of Example 3;

[0026] Fig. 9 It is a structural cross-sectional view of Example 3;

[0027] Fig.10 It is an exploded view of the parts of Example 3;

[0028] Fig.11 This is a schematic diagram of the structure of Example 4.

[0029] Marked in the figure: handle 1, mounting groove 11, assembly hole 12, slide groove 13, positioning groove 14, slot 15, snap-on groove 16, protective cover 2, protective ring 21, extension frame 22, sliding sheet 23, avoidance groove 24, positioning block 25, snap button 26, first connecting member 3, threaded hole 31, clamping portion 32, clip 33, first locking member 34, first needle withdrawal member 4, bottom cover 5, L-shaped block 51, hook 52, fixing pin 53, bolt 6, second needle withdrawal member 7, second connecting member 8, fastening bolt 9, third handle 91, third connecting member 92, third needle withdrawal member 93, third bottom cover 94, positioning groove 95, latch 96, push rod 97, ejector pin 98, spring 99, fourth needle withdrawal member 101, fourth connecting member 102. DETAILED DESCRIPTION

[0030] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0032] Example 1

[0033] The multifunctional needle withdrawer described in this embodiment includes a handle 1, a protective cover 2, a first connecting piece 3 and a first needle withdrawing piece 4; a mounting groove 11 is provided at the front end of the handle 1, and an assembly hole 12 is provided in the middle of the mounting groove 11; a threaded hole 31 is provided at the end of the first connecting piece 3, and the end of the first connecting piece 3 is inserted into the mounting groove 11, and a bolt 6 extends into the handle 1 from the opening at the end of the handle 1, and then passes through the assembly hole 12 and is threadedly fixed to the first connecting piece 3.

[0034] A slide groove 13 is provided on each side of the handle 1, and the radial cross-section of the slide groove 13 is T-shaped. A positioning groove 14 is provided at the end of the slide groove. A protective ring 21 is provided at the front end of the protective cover 2, and two extension frames 22 are provided on the protective ring 21. The outer edge of the extension frame 22 is transitionally connected with the handle surface, and a protruding sliding piece 23 is provided on the inner side of the extension frame 22. The sliding piece 23 is placed in the slide groove 13, and the two are slidably matched; an avoidance groove 24 and a positioning block 25 are provided at the end of the extension frame 22, and a snap 26 is provided on the outer side of the positioning block 25. The positioning block 25 is stuck in the positioning groove 14 at the end of the slide groove 13. By pressing the snap 26, the positioning block 25 can move into the avoidance groove 24, so that the positioning block 25 falls off the restriction of the positioning groove 14, and the protective cover 2 can move along the handle 1. The protective ring 21 can be moved to the outside of the head of the first needle withdrawal member 4 to prevent the needle withdrawal member from being broken or damaged. When in use, the protective ring is pushed toward the handle so that the protective cover moves to both sides of the handle, and the needle withdrawal member is exposed as a whole, which does not hinder the needle withdrawal operation.

[0035] The handle 1 is a hollow structure as a whole, and the middle of the end of the handle 1 is open. Slots 15 are provided on both sides of the opening. The slots are opposite to the end of the slide slot, and snap-in grooves 16 are provided on both sides of the end of the slide slot 13; a bottom cover 5 is fixed to the end of the handle 1, and the middle of the bottom 5 is inserted into the opening at the end of the handle. Blocks are provided on both sides of the bottom cover 5, and the block is composed of two L-shaped blocks 51. The bottom of the two L-shaped blocks is provided with hooks 52, and the opposite sides of the two L-shaped blocks 51 are provided with pin grooves, and the fixing pin 53 is inserted in the middle of the two L-shaped blocks 51, so that the hooks 52 of the two L-shaped blocks are respectively inserted into the snap-in grooves 16 on both sides of the slide slot 13.

[0036] The handle can be replaced with different specifications of needle withdrawal parts according to usage requirements, and then the appropriate connector can be selected according to the structure of the needle withdrawal parts.

[0037] The first needle withdrawal member 4 of the present embodiment is a tubular structure, and its first connecting member 3 can optionally have a spring-clip structure. The first connecting member 3 is provided with a cylindrical clamping portion 32 at one end facing the first needle withdrawal member, and the clamping portion is composed of a plurality of clips 33. There is a gap between adjacent clips 33. The clamping portion 32 is provided with an external thread structure and a mounting hole in the middle. The first needle withdrawal member 4 is inserted into the mounting hole of the clamping portion 32, and the first locking member 34 is sleeved on the outer side of the clamping portion 32 and locked with the clamping portion thread, thereby fixing the first needle withdrawal member 4.

[0038] Example 2

[0039] The structure of this embodiment is the same as that of embodiment 1, except that it includes a second needle withdrawal member 7 and a second connecting member 8, the second needle withdrawal member 7 is a thin-sheet structure, a step surface is provided on the second connecting member 8 toward one end of the second needle withdrawal member 7, a second assembly hole is provided on the step surface, and a mounting hole is also provided at the end of the second needle withdrawal member 7, the end of the second needle withdrawal member 7 is placed on the step surface and locked and fixed by a fastening bolt 9.

[0040] Example 3

[0041] The protective cover 2 of this embodiment has the same structure as that of embodiment 1, except that it includes a third handle 91, a third connecting piece 92 and a third needle withdrawal piece 93. The third handle 91 is a hollow structure with an open end, and a third bottom cover 94 is fixed to the end. A sinking groove is provided in the middle of the third bottom cover 94, and a through hole is provided in the middle of the sinking groove; a third mounting groove is provided at the front end of the third handle 91, and a third assembly hole is provided in the middle of the third mounting groove; positioning grooves 95 are provided on both sides of the end of the third connecting piece 92, and the end of the third connecting piece is inserted into the mounting groove and fixed by a latch 96.

[0042] The third needle withdrawal member 93 is a tubular structure, and the end thereof is fixed in the third connecting member 92; the third handle 91 also includes a push rod 97 and an ejector pin 98, the front end of the ejector pin 98 passes through the third assembly hole of the third handle 91, and is inserted into the third needle withdrawal member 93 through the through hole in the middle of the third connecting member 92; the push rod 97 is inserted into the third handle from the through hole of the third bottom cover 94, and a spring 99 is also provided in the third handle, one end of the spring is clamped on the push rod, and the other end is against the rear end of the ejector pin.

[0043] Example 4

[0044] The structure of this embodiment is similar to that of the third embodiment, except that it includes a fourth needle withdrawal member 101 and a fourth connecting member 102, the fourth needle withdrawal member is a sheet-type double-needle structure, a step surface is provided at one end of the fourth connecting member facing the fourth needle withdrawal member, the end of the fourth needle withdrawal member is placed on the step surface, and is locked and fixed by a fastening bolt. At the same time, a through hole for the ejector pin to pass through is provided in the middle of the fourth connecting member and the fourth needle withdrawal member, so as to facilitate the ejector pin 98 to withdraw the needle.

[0045] The needle remover can be equipped with needle removers and connectors of different specifications, which is convenient for users to replace and use, realizing multi-functional needle remover operation.

[0046] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A needle remover with a protective cover, characterized in that: It includes a handle, a protective cover, a connecting piece and a needle withdrawing piece. The front end of the handle is provided with a mounting groove, the connecting piece is installed in the mounting groove, and the needle withdrawing piece is installed on the connecting piece; the handle is provided with at least two sliding grooves, the front end of the protective cover is provided with a protective ring, and the protective ring is provided with at least two extension frames, the extension frames are placed in the sliding grooves of the handle and can move along the sliding grooves; the protective ring switches positions between the connecting piece and the head of the needle withdrawing piece.

2. A needle remover with a protective cover as claimed in claim 1, characterized in that: A protruding sliding piece is provided on the inner side of the extension frame, and the sliding piece is placed in the sliding groove, and the two are slidably matched; the outer edge of the extension frame is transitionally connected with the handle surface; an avoidance groove and a positioning block are provided at the end of the extension frame, and a snap is provided on the outer side of the positioning block.

3. A needle remover with a protective cover as claimed in claim 2, characterized in that: The radial cross section of the slide groove is T-shaped, and a positioning groove is provided at the end of the slide groove to cooperate with the positioning block at the end of the extension frame.

4. The needle remover with a protective cover according to claim 1, characterized in that: The handle is a hollow structure as a whole, and the middle of the handle end is open. Slots are provided on both sides of the opening. The slots are opposite to the end of the slide slot, and snap-in slots are provided on both sides of the end of the slide slot. A bottom cover is fixed to the end of the handle, and the middle of the bottom is inserted into the opening at the end of the handle. Card blocks are provided on both sides of the bottom cover, and the card blocks are fixed in the snap-in slots through slots.

5. The needle remover with a protective cover as claimed in claim 4, characterized in that: The clamping block on the side of the bottom cover is composed of two L-shaped blocks, the bottom of the two L-shaped blocks are provided with clamping hooks, the opposite sides of the two L-shaped blocks are provided with pin grooves, and the fixing pin is inserted into the middle of the two L-shaped blocks so that the clamping hooks of the two L-shaped blocks are respectively clamped into the clamping grooves on both sides of the slide groove.

6. The needle remover with a protective cover as claimed in claim 1, characterized in that: The front end of the connecting piece cooperates with the needle withdrawing piece, and the two are fixedly connected.

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