Pin dismounting device for bent insertion of single-row needles

Abstract

The utility model discloses a pin dismounting device for bent insertion of a single-row pin. The pin dismounting device comprises a positioning seat, a sliding plate, a screw and a positioning pin, a sliding plate capable of transversely sliding left and right is arranged at the upper end of the positioning seat; the right end of the positioning seat is longitudinally provided with a bent insertion single-row needle; the sliding plate is connected with the positioning seat through a screw; a positioning pin is arranged at the right end of the positioning seat; the positioning pin is used for being in contact with the front side of the insulator of the bent insertion single-row pin; and the sliding plate is used for pushing the to-be-dismounted pin in the bent insertion single-row pin to the right to finish the dismounting operation when the sliding plate slides left and right in the transverse direction. The pin dismounting device for the bent-insertion single-row pin is scientific in structural design, can safely and reliably dismount the pin at a specified position in the bent-insertion single-row pin, effectively prevents the pin and an insulator from being damaged, guarantees the dismounting work quality, and has great practical significance.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic components, in particular to a pin removal device for bent-insertion single-row pins. Background Art

[0002] Pin header is a common electronic component and a type of connector. It is widely used in PCB circuit boards (integrated circuit boards) in electronics, electrical appliances, and instruments. Its function is to act as a bridge between blocked or isolated circuits within the circuit, and to take on the task of current or signal transmission. The application of pin headers can easily connect and disconnect circuit boards and other electronic components, which is very useful in the maintenance and upgrading of electronic equipment.

[0003] The pin header is composed of an insulator and multiple pins evenly distributed therein. According to different needs, it can be divided into multiple models and specifications. Among them, the pitch between adjacent pins is equal to 2.54mm, and the bent single pin row 5 (see Figure 1 The PCB shown in the figure is one of them and is widely used in PCB circuit boards of railway signal power supply screen products.

[0004] See also Figure 1 As shown, the bent single-row pin 5 includes an insulator 50 and a plurality of pins 51. The longitudinally distributed insulator 50 is laterally penetrated by the plurality of pins 51. Any two adjacent pins 51 are parallel to each other and have equal spacing. Each pin 51 includes an elbow portion 511 and a pin straight rod portion 512 connected together.

[0005] At present, in order to achieve different functions, it is often necessary to remove one or more pins (i.e., pins at designated positions) from the purchased bent single-row pins. Since the pins are small, the pin cross-section is small (the cross-sectional length is 0.72 mm, the cross-sectional width is 0.5 mm), and the spacing between adjacent pins is only 2.54 mm, it is difficult to remove them by hand or with the help of pliers, and it is easy to damage adjacent pins and insulators.

[0006] Therefore, there is an urgent need to develop a technology that can solve the above technical problems. Utility Model Content

[0007] The utility model aims to provide a pin removal device for bent-insertion single-row pins in view of the technical defects in the prior art.

[0008] To this end, the utility model provides a pin removal device for a bent-insertion single-row pin, which comprises: a positioning seat, a slide plate, a screw and a positioning pin;

[0009] The upper end of the positioning seat is provided with a slide plate which can slide horizontally left and right;

[0010] At the right end of the positioning seat, a single row of bent pins is placed longitudinally;

[0011] The slide plate is connected to the positioning seat through screws;

[0012] The right end of the positioning seat is provided with a positioning pin;

[0013] A positioning pin, used to contact the front side of the insulator of the bent single-row pin;

[0014] The slide plate is used to slide horizontally left and right to complete the removal operation by pushing the pin to be removed in the bent single-row pin to the right.

[0015] It can be seen from the technical solution provided by the above utility model that, compared with the prior art, the utility model provides a pin removal device for a bent single-row pin, which has a scientific structural design and can safely and reliably remove pins at specified positions in the bent single-row pin, effectively avoiding damage to the pins and insulators, ensuring the quality of the removal work, and has great practical significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : The three-dimensional view of the bent single-row pin before the pin is removed;

[0017] Figure 2 : 3D view of the bent single-row pin after the pins are removed;

[0018] Figure 3 : A three-dimensional view of the slide plate in the initial installation position in the pin removal device for the bent single-row pin provided by the utility model;

[0019] Figure 4 : A three-dimensional view of the slide plate in the terminal disassembly position in the pin removal device for the bent single-row pin provided by the utility model;

[0020] Figure 5 : The pin removal device of the bent single-row pin provided by the utility model, during the use of inserting the bent single-row pin, a three-dimensional view of the slide plate in the initial installation position;

[0021] Figure 6 : The pin removal device of the bent single-row pin provided by the utility model, during the use of inserting the bent single-row pin, a three-dimensional view of the slide plate at the terminal disassembly position;

[0022] Figure 7a : The pin removal device of the bent single-row pin provided by the utility model, during the use of inserting the bent single-row pin, a right view of the slide plate in the initial installation position;

[0023] Figure 7b: The pin removal device of the bent single-row pin provided by the utility model, during the use of inserting the bent single-row pin, a front view of the slide plate in the initial installation position;

[0024] Figure 7c : The pin removal device of the bent single-row pin provided by the utility model, during the use of inserting the bent single-row pin, a top view of the slide plate in the initial installation position;

[0025] Figure 8 : A front three-dimensional view of the positioning seat in the pin removal device for the bent single-row pin provided by the utility model;

[0026] Fig. 9 : A three-dimensional view of the back side of the positioning seat in the pin removal device for the bent single-row pin provided by the utility model;

[0027] Fig.10 : A cross-sectional view of a positioning seat in the pin removal device for a bent-insert single-row pin provided by the utility model;

[0028] Fig.11 : A front three-dimensional view of the slide plate in the pin removal device for bent-insertion single-row pins provided by the utility model;

[0029] Fig.12 : A three-dimensional view of the back side of the slide plate in the pin removal device for bent-insert single-row pins provided by the utility model;

[0030] Fig.13 : A view of a screw in the pin removal device for a bent-insert single-row pin provided by the utility model;

[0031] Fig.14 : A view of a positioning pin in the pin removal device for a bent-insert single-row pin provided by the utility model;

[0032] Fig.15 : Schematic diagram of the required position of the pins for disassembly;

[0033] Fig.16 : Schematic diagram of the moving position of the slide plate when removing the pin;

[0034] In the figure, 1. positioning seat; 101. concave slideway, 102. oblong step hole for screws, 103. pin row slot, 104. insulator blocking surface, 105. slide plate stop inclined surface;

[0035] 106. Positioning pin hole, 107. Pin guide table, 108. Insulator cavity;

[0036] 2. Slide plate; 201. Screw threaded hole, 202. Sliding surface, 203. Dismantling plate, 204. Dismantling plate oblique teeth, 205. Pressing surface;

[0037] 3. Screw; 301. Stud, 302. Threaded rod;

[0038] 4. Positioning pin;

[0039] 5. bent single-row pin, 50. insulator, 51. pin, 52. front end face of pin row, 53. insulation stress surface, 511. elbow part, 512. straight rod part of pin. DETAILED DESCRIPTION

[0040] 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 of 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.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] See also Figures 1 to 6 , Figures 7a to 7c , Figures 8 to 16 The utility model provides a pin removal device for a bent-insertion single-row pin, comprising: a positioning seat 1, a slide plate 2, a screw 3 and a positioning pin 4;

[0045] The upper end of the positioning seat 1 is provided with a slide plate 2 which can slide horizontally left and right;

[0046] At the right end of the positioning seat 1, a bent single-row needle 5 is placed longitudinally;

[0047] The slide plate 2 is connected to the positioning seat 1 through screws 3;

[0048] The right end of the positioning seat 1 is provided with a positioning pin 4;

[0049] The positioning pin 4 is used to contact the front side of the insulator 50 of the bent single-row pin 5;

[0050] The slide plate 2 is used to slide horizontally to the left and right to push the pin 51 to be removed in the bent single-row pin 5 to the right to complete the removal operation.

[0051] It should be noted that in the present utility model, see Figure 1 , Figure 2 The bent single-row pin 5 includes an insulator 50 and a plurality of pins 51. The insulator 50 distributed longitudinally passes through the plurality of pins 51 transversely. Any two adjacent pins 51 are parallel to each other and have equal spacing. Each pin 51 includes an elbow portion 511 and a pin straight rod portion 512 connected together.

[0052] The front side of the insulator 50 has a pin header front end surface 52;

[0053] The right side of the insulator 50 has an insulator stress-bearing surface 53 .

[0054] In this utility model, see Figures 9 and 10 As shown, the upper end surface of the positioning seat 1 is provided with a concave slideway 101 which is distributed transversely through the upper end surface of the positioning seat 1;

[0055] A concave slideway 101, used for placing the slide plate 2;

[0056] In the longitudinal middle of the concave slideway 101, there are arranged transversely distributed and vertically penetrating (i.e., penetrating up and down) oblong screw step holes 102;

[0057] A needle row groove 103 is provided at the middle of the right end of the positioning seat 1 and is longitudinally connected front to back (i.e., connected inside and outside);

[0058] The pin row slot 103 is used to accommodate the bent single row pin 5;

[0059] An insulator cavity 108 is provided in the middle of the pin row slot 103;

[0060] The left end portion of the pin row slot 103 is used to insert the pin straight rod portion 512 of the plurality of pins 51 included in the bent single pin row 5;

[0061] The insulator cavity 108 is used to accommodate the insulator 50 of the bent single-row pin 5;

[0062] In specific implementation, an insulator blocking surface 104 is provided on the right side of the insulator cavity 108;

[0063] The insulator blocking surface 104 is used to prevent the insulator force-bearing surface 53 on the right side of the insulator 50 from continuing to move rightward;

[0064] In specific implementation, a slide plate stop inclined surface 105 is provided at the upper right end surface of the positioning seat 1;

[0065] The right end of the positioning seat 1 is provided with a positioning pin hole 106 which passes vertically therethrough;

[0066] It should be noted that the positioning pin hole 106 vertically passes through the insulator cavity 108 and passes through the positioning seat 1;

[0067] In specific implementation, a horizontally distributed pin guide table 107 is provided on the upper side of the right end of the positioning seat 1;

[0068] It should be noted that the present invention is specially designed with the pin guide table 107 to prevent the bent single-row pin 5 from being bent by force during the removal process and thus unable to be removed smoothly.

[0069] In a specific implementation, the cross-sectional dimension of the pin row slot 103 is larger than the cross-sectional dimension of the bent single pin row 5 , for example, the cross-sectional length and the cross-sectional width are both larger by 0.1 mm.

[0070] In a specific implementation, the transverse length H″ of the oblong stepped hole 102 of the screw is slightly larger by 1 mm than the distance H required to remove the pin, so as to ensure that the slide plate 2 has a sufficient travel H′.

[0071] It should be noted that see Fig.15 As shown, currently, when removing the pin 51, the distance H that the pin 51 needs to be moved to the right from the insulator 50 (that is, the distance that the pin needs to be moved to remove) is known (specifically, it can be greater than or equal to the length of the pin straight rod portion 512, or it can be greater than or equal to the distance that the pin straight rod portion 512 of the pin is exposed from the left side wall of the insulator 50 in the initial state). When the pin 51 is moved to the right by this distance H, the pin straight rod portion 512 of the pin 51 is no longer tightly plugged into the insulator 50, so that the pin straight rod portion 512 is separated from the insulator 50 and removed, or there is a large gap between the pin straight rod portion insertion hole in the insulator 50, and the staff can easily remove the pin by hand or use tools (such as ordinary needle-nosed pliers).

[0072] It should also be noted that see Fig.16As shown, during the operation, the slide plate 2 moves to the right in the concave slideway 101, pushing the pin 51 to be removed in the bent single-row pin 5 to move to the right by a distance, which is the stroke H′ of the slide plate 2. This H′ is 1mm larger than H, which can ensure the smooth removal of the pin. Among them, the stroke H′ of the slide plate is constrained by the length H″ of the oblong step hole of the screw, so the maximum stroke H′ of the slide plate is equal to the lateral length H″ of the oblong step hole of the screw, that is, H′=H″, and at the same time requires: H′=H″=H+1mm, of course, H′ (or H″) is not limited to being 1mm larger than H, and can be at least 1mm larger, for example, 2mm larger.

[0073] In this utility model, see Fig.11 , Fig.12 As shown, the middle part of the slide plate 2 is provided with screw thread holes 201 which are vertically distributed (i.e., penetrate the upper and lower end surfaces);

[0074] The front and rear sides (i.e., the inner and outer sides) of the slide plate 2 are respectively provided with sliding surfaces 202;

[0075] On the right side of the slide plate 2, at a position corresponding to the pins 51 (specifically, one or more) to be removed on the bent single-row pin 5, a dismantling plate 203 distributed laterally is provided;

[0076] The removal plate 203 is used to push the pin 51 to be removed from the bent single-row pin 5 when the positioning seat 1 moves to the right.

[0077] It should be noted that, in the present invention, the removal plate 203 may be one or more, and the abutting surface 205 on the right side of the removal plate 203 is required to only contact the left side surface of the elbow portion 511 of the pin 51 to be removed, and the abutting surfaces 205 of all the removal plates 203 correspond to the positions of all the pins 51 to be removed, and can contact the left side surfaces of the elbow portions 511 of all the pins 51 to be removed.

[0078] It should be noted that the number and specific positions of the pins 51 to be removed on the bent single-row pin 5 are set accordingly according to the specific installation scenario requirements, for example, see Figure 1 As shown, for a plurality of pins 51 arranged at equal intervals in the longitudinal direction, the pins 51 to be removed may include the second pin 5102 , the third pin 5103 , the sixth pin 5106 , and the seventh pin 5107 at the designated position from the front to the back.

[0079] It should be noted that, for the utility model, according to different needs, a plurality of removal plates 203 corresponding to the positions of the pins 51 to be removed can be provided on the right side of the slide plate 2, wherein the removal plates 203 are provided corresponding to the positions of the pins 51 to be removed.

[0080] In a specific implementation, the sliding surface 202 is a vertical plane with a smooth surface.

[0081] In specific implementation, the right end of each dismantling plate 203 is respectively provided with a dismantling plate bevel tooth 204;

[0082] The lower side of the plate removal bevel teeth 204 is closely fitted with the slide plate stop bevel 105 in the positioning seat 1;

[0083] The right end surface of the plate removal bevel tooth 204 is provided with a pressing surface 205;

[0084] The pressing surface 205 is used to press against the left side of the elbow portion 511 of the pin 51 to be removed in the bent single-row pin 5.

[0085] In this utility model, see Fig.13 As shown, a stud 301 is provided in the middle of the screw 3;

[0086] The lower end (i.e. the tail) of the screw 3 is provided with a threaded rod 302 .

[0087] In a specific implementation, the length L of the stud 301 is greater than the length L′ of the oblong stepped hole 102 of the screw in the positioning seat 1 , specifically, greater by 0.5 mm.

[0088] In specific implementation, the slide plate 2 is slidably connected with the oblong step hole 102 of the screw in the positioning seat 1 through the screw 3;

[0089] Furthermore, the screw 3 vertically penetrates through the oblong stepped screw hole 102 in the positioning seat 1 from bottom to top, and is threadedly fixedly connected with the screw threaded hole 201 in the slide plate 2 .

[0090] It should be noted that the screw 3 is inserted vertically into the screw oblong step hole 102 from the bottom to the top from the lower end surface direction of the positioning seat 1, and the slide plate 2 is fixed in the positioning seat 1. At this time, the slide plate 2 can slide horizontally left and right in the screw oblong step hole 102 following the screw 3.

[0091] In this utility model, see Fig.14 As shown, the positioning pin 4 is installed in the positioning pin hole 106 in the positioning seat 1;

[0092] The positioning pin 4 is used to contact the front end surface 52 of the pin row 5 on the front side of the insulator 50 of the bent single pin row 5.

[0093] It should be noted that, for the present invention, the positioning pin 4 is used to position the pin row front end face 52 on the front side of the insulator 50 of the bent single pin row 5 so that the position of the designated pin 51 to be removed corresponds to the position of the removal plate 203 .

[0094] In order to more clearly understand the technical solution of the utility model, the working principle of the utility model is explained below.

[0095] See also Figure 1 As shown, for the plurality of pins 51 arranged at equal intervals in the longitudinal direction, in order to remove the second pin 5102, the third pin 5103, the sixth pin 5106 and the seventh pin 5107 from the front to the back, refer to Figure 5 , Figure 6 As shown, the right side of the slide plate 2 includes two laterally distributed dismantling plates 203, the right side abutting surface 205 of the front dismantling plate 203 is arranged corresponding to the left side of the elbow portion 511 of the second pin 5102 and the third pin 5103, and the right side abutting surface 205 of the rear dismantling plate 203 is arranged corresponding to the left side of the elbow portion 511 of the sixth pin 5106 and the seventh pin 5107. The specific operation process is as follows:

[0096] First, see Figure 5 As shown, the slide plate 2 is pushed to the leftmost end of the positioning seat 1, so that the slide plate stop inclined surface 105 on the positioning seat 1 abuts against the plate removal inclined teeth 204 in the slide plate 2;

[0097] Next, hold the elbow portion 511 of the bent single-row pin 5 and insert it into the pin row slot 103 from the right end of the positioning seat 1, so that the front end surface 52 of the pin row on the front side of the insulator 50 abuts against the outer circle of the positioning pin 4, and the workpiece to be disassembled (i.e., the pin 51 to be removed) is positioned. At this time, the designated pins to be removed (the second pin 5102, the third pin 5103, the sixth pin 5106 and the seventh pin 5107) correspond to the positions of the disassembly board 203.

[0098] Then, the slide plate 2 is pushed rightward, and the workpieces to be disassembled (i.e., the second pin 5102, the third pin 5103, the sixth pin 5106, and the seventh pin 5107) abut against the abutting surfaces 205 on the right sides of the two disassembly plates 203, and the insulator force-bearing surface 53 on the right side of the insulator 50 abuts against the insulator blocking surface 104 on the right side of the insulator cavity 108 of the positioning seat 1;

[0099] Then, the slide plate 2 is pushed rightward, and the workpieces to be disassembled (i.e., the second pin 5102, the third pin 5103, the sixth pin 5106, and the seventh pin 5107) follow the rightward movement H′ of the disassembly plate 203.

[0100] The four pins 51 are gradually moved out of the insulator 50 by a distance H, and the removal operation of the designated pins is finally completed. Figure 6 shown.

[0101] It should be noted that, for the present invention, the distance H that needs to be moved to remove the pin can be greater than or equal to the length of the straight rod portion 512 of the pin, so that the pin 51 can be directly removed from the insulator 50 using the device of the present invention; in specific implementation, if the straight rod portion 512 of the pin is too long, the elbow portion 511 of the pin 51 to be removed can be moved away from the insulator 50 by the device of the present invention, that is, the horizontal distance H is moved away from the elbow portion 511 of the pin that is retained in other positions (i.e., the position remains unchanged and is not removed), see Fig.15 As shown, the worker can easily remove the pins further by hand or using tools (such as ordinary needle-nosed pliers).

[0102] In summary, it can be seen that by applying the utility model, the bent single-row needle can be removed safely and efficiently, the operation is convenient and fast, the removal is accurate and reliable, and the work efficiency is greatly improved.

[0103] Compared with the prior art, the pin removal device for bent-insertion single-row pins provided by the utility model has the following beneficial effects:

[0104] 1. For the utility model, different slide plates can be designed according to the different positions of the pins to be removed, and the versatility of the device is achieved by arranging a removal plate corresponding to the position of the pins to be removed on the slide plate;

[0105] 2. By applying the utility model, during the dismantling process, the insulator force-bearing surface 53 and the insulator blocking surface 104 are offset against each other, achieving uniform force and effectively protecting the insulator from deformation;

[0106] 3. By applying the utility model, the board can be removed with precise alignment and removal of the pins to be removed, and the adjacent pins will not be damaged.

[0107] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A pin removal device for a bent single-row pin, characterized in that: include: A positioning seat (1), a slide plate (2), a screw (3) and a positioning pin (4); The upper end of the positioning seat (1) is provided with a slide plate (2) which can slide horizontally left and right; A bent single-row needle (5) is longitudinally placed at the right end of the positioning seat (1); The slide plate (2) is connected to the positioning seat (1) via screws (3); A positioning pin (4) is provided at the right end of the positioning seat (1); A positioning pin (4) for contacting the front side of an insulator (50) of the bent single-row pin (5); The slide plate (2) is used for completing the removal operation by pushing the pin (51) to be removed in the bent single-row pin (5) to the right when sliding horizontally to the left and right.

2. The pin removal device for a bent single-row pin as claimed in claim 1, characterized in that: The upper end surface of the positioning seat (1) is provided with a concave slideway (101) extending transversely therethrough; A concave slideway (101) for placing the slide plate (2); A transversely distributed and vertically penetrating oblong screw step holes (102) are provided in the longitudinal middle of the concave slideway (101); A needle row groove (103) is provided in the middle of the right end of the positioning seat (1) and runs longitudinally from front to back; A pin row groove (103) for accommodating a bent single-row pin (5); An insulator cavity (108) is provided in the middle of the needle row slot (103); The left end portion of the pin row slot (103) is used to insert the pin straight rod portion (512) of a plurality of pins (51) included in the bent single pin row (5); The insulator cavity (108) is used to accommodate the insulator (50) of the bent-insertion single-row needle (5).

3. The pin removal device for a bent single-row pin as claimed in claim 2, characterized in that: An insulator blocking surface (104) is provided on the right side of the insulator cavity (108); The insulator blocking surface (104) is used to prevent the insulator force-bearing surface (53) on the right side of the insulator (50) from continuing to move rightward.

4. The pin removal device for a bent single-row pin as claimed in claim 2, characterized in that: A slide plate stop inclined surface (105) is provided at the upper right end surface of the positioning seat (1); The right end of the positioning seat (1) is provided with a positioning pin hole (106) which penetrates vertically.

5. The pin removal device for a bent single-row pin as claimed in claim 2, characterized in that: A horizontally distributed pin guide table (107) is provided on the upper side of the right end of the positioning seat (1).

6. The pin removal device for a bent single-row pin according to any one of claims 1 to 5, characterized in that: The middle part of the slide plate (2) is provided with screw thread holes (201) which are vertically penetrated; The front and rear sides of the slide plate (2) are respectively provided with sliding surfaces (202); On the right side of the slide plate (2), at a position corresponding to the pin (51) to be removed on the bent single-row pin (5), a dismantling plate (203) distributed laterally is provided; The dismantling plate (203) is used to push the pins (51) to be removed on the bent single-row pins (5) when the positioning seat (1) moves to the right.

7. The pin removal device for a bent single-row pin as claimed in claim 6, characterized in that: The sliding surface (202) is a vertical plane with a smooth surface.

8. The pin removal device for a bent single-row pin as claimed in claim 6, characterized in that: A plate removing bevel tooth (204) is respectively provided at the right end of each removing plate (203); The lower side of the plate removal bevel teeth (204) is closely fitted with the slide plate stop bevel (105) in the positioning seat (1); The right end surface of the plate removal bevel tooth (204) is provided with a pressing surface (205); The pressing surface (205) is used for pressing and contacting with the left side of the elbow portion (511) of the pin (51) to be removed in the bent single-row pin (5).

9. The pin removal device for a bent single-row pin according to any one of claims 1 to 5, characterized in that: A stud (301) is provided in the middle of the screw (3); The lower end of the screw (3) is provided with a threaded rod (302); The screw (3) vertically penetrates through the screw oblong stepped hole (102) in the positioning seat (1) from bottom to top, and is threadedly fixedly connected with the screw threaded hole (201) in the slide plate (2).

10. The pin removal device for a bent single-row pin according to any one of claims 1 to 5, characterized in that: A positioning pin (4) is installed in a positioning pin hole (106) in the positioning seat (1); The positioning pin (4) is used to contact the front end surface (52) of the pin row provided on the front side of the insulator (50) of the bent single pin row (5).

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