PIN guide structure

Abstract

The utility model relates to the technical field of PINs, in particular to a PIN guide structure, which comprises a guide seat provided with a pin hole and suitable for being fixedly connected with external fixing equipment; the PIN is adaptively arranged in the pinhole in a penetrating manner and is in sliding fit with the pinhole; a limiting part is arranged on the outer side wall of the bottom end of each PIN; a first through hole and a second through hole are sequentially formed in the needle seat in a penetrating manner; the second through hole is larger than the first through hole; the needle seat is suitable for being connected with external jacking equipment; wherein the pin seat is arranged on the PIN in a sleeving manner through the first through hole, and the limiting part is accommodated in the second through hole; the limiting part is in clearance fit with the second through hole, and the PIN is in clearance fit with the first through hole. The problems that in an existing guide structure, due to machining errors in the machining process and assembly errors in the assembly process, errors possibly exist in the coaxiality of pin holes of a guide seat and the PINs, and the PINs are prone to being broken due to non-coaxiality are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of PIN needles, in particular to a PIN needle guide structure. Background Art

[0002] In the related art, a guide structure is generally used to guide and lift the PIN needle, such as Figure 1 As shown, the existing guide structure usually includes a guide seat, a PIN needle and a needle seat. The guide seat is fixed, and the PIN needle is slidably inserted into the pinhole of the guide seat. The bottom of the PIN needle is inserted into the needle seat and fixed by a fastening screw 11, and the needle seat is connected to an external lifting device. When the PIN needle is lifted, since the pinhole of the guide seat and the needle seat for fixing the PIN needle are located on different parts, and there are processing errors during machining and assembly errors during assembly, there may be errors in the coaxiality of the pinhole of the guide seat and the PIN needle, and it is very easy for the PIN needle to break due to different axes. Utility Model Content

[0003] The utility model provides a PIN needle guide structure, which solves the problem that due to machining errors and assembly errors in the existing guide structure, there may be errors in the coaxiality between the pinhole of the guide seat and the PIN needle, which makes it very easy for the PIN needle to break due to misalignment.

[0004] In view of this, the utility model provides a PIN needle guide structure, comprising:

[0005] The guide seat is provided with a pinhole and is suitable for fixed connection with an external fixing device;

[0006] A PIN needle is adapted to be inserted into the pinhole and slidably cooperates with the pinhole; a limiting portion is provided on the outer side wall of the bottom end of the PIN needle;

[0007] A needle seat, wherein a first through hole and a second through hole are sequentially penetrated through the needle seat; the second through hole is larger than the first through hole; the needle seat is suitable for connecting with an external lifting device;

[0008] The needle seat is sleeved on the PIN needle through the first through hole, and the limiting portion is accommodated in the second through hole; the limiting portion and the second through hole are loosely matched, and the PIN needle and the first through hole are loosely matched.

[0009] Optionally, a plurality of countersunk holes are provided on the needle seat along the axial direction of the PIN needle, which are suitable for connecting to an external lifting device through screws cooperating with the countersunk holes.

[0010] Optionally, a reinforcement portion is provided on the PIN pin around an outer side wall thereof, a position of the reinforcement portion corresponds to a position of the first through hole, and the reinforcement portion and the first through hole are gap-matched.

[0011] Optionally, a top height of the reinforcement portion is higher than a top height of the first through hole.

[0012] Optionally, the reinforcing portion, the limiting portion and the PIN needle are integrated.

[0013] Optionally, the PIN needle includes a needle rod and a needle head, the needle head is inserted into the top of the needle rod, and the needle head is threadedly connected to the needle rod.

[0014] Optionally, a plurality of connection holes are provided on the guide seat along the axial direction of the needle hole, and are suitable for being connected to an external fixing device through the connection holes.

[0015] The technical solution of the utility model has the following advantages:

[0016] In the utility model, during installation, the guide seat can be fixedly arranged with the external fixing device, and the needle seat can be slidably penetrated from the top of the PIN needle to the bottom of the PIN needle, so that the limiting part is accommodated in the second through hole, and the needle seat can be fixedly connected with the external lifting device, so that the bottom of the PIN needle is restricted by the external lifting device, and then the movable space of the limiting part in the up and down directions is restricted, so as to prevent the PIN needle from detaching from the needle seat. During the installation process, the needle seat and the guide seat are coaxially arranged, and the PIN needle is slidably penetrated in the pinhole of the guide seat. When the PIN needle is lifted, the external lifting device drives the needle seat and the PIN needle along The axial movement of the pinhole, when the coaxiality of the PIN needle and the pinhole of the guide seat is poor, the PIN needle is subjected to the lateral force of the pinhole during the lifting process. Since the PIN needle has a clearance fit in the needle seat, the bottom end of the PIN needle can be fine-tuned in the needle seat to keep the coaxiality of the PIN needle and the pinhole of the guide seat consistent, and the PIN needle can be lifted smoothly in a predetermined direction, avoiding the PIN needle from bending or even breaking due to the misalignment with the pinhole of the guide seat. The PIN needle guide structure provided in this embodiment can be applied to the scenario of lifting a single PIN needle, and is also suitable for the scenario of lifting multiple PIN needles, and has a wide range of uses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The prior art drawings are background art;

[0019] Figure 2A schematic diagram of the structure of the PIN needle guide structure provided by the utility model at a first viewing angle;

[0020] Figure 3 for Figure 2 Sectional view at AA;

[0021] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0022] Figure 5 for Figure 3 Enlarged view of point C in the middle.

[0023] Description of reference numerals:

[0024] 1. Guide seat; 2. Pin hole; 3. PIN needle; 301. Needle rod; 302. Needle head; 4. Limiting part; 5. Needle seat; 6. First through hole; 7. Second through hole; 8. Countersunk hole; 9. Reinforcement part; 10. Connecting hole; 11. Fastening screw. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] Example 1

[0030] See also Figures 2 to 5 , this embodiment provides a PIN needle 3 guiding structure, including: a guiding seat 1, provided with a pinhole 2, suitable for fixed connection with an external fixing device; a PIN needle 3, adapted to be inserted into the pinhole 2 and slidably matched with the pinhole 2; a limiting portion 4 is provided on the outer peripheral wall of the bottom end of the PIN needle 3; a needle seat 5, the needle seat 5 is penetrated by a first through hole 6 and a second through hole 7 in sequence; the second through hole 7 is larger than the first through hole 6; the needle seat 5 is suitable for connecting with an external lifting device; wherein the needle seat 5 is sleeved on the PIN needle 3 through the first through hole 6, and the limiting portion 4 is accommodated in the second through hole 7; the limiting portion 4 is clearance-matched with the second through hole 7, that is, the length of the second through hole 7 is greater than the length of the limiting portion 4, and the diameter of the second through hole 7 is greater than the diameter of the limiting portion 4; the PIN needle 3 is clearance-matched with the first through hole 6, that is, the diameter of the PIN needle 3 is smaller than the diameter of the first through hole 6.

[0031] It should be noted that the diameter of the limiting portion 4 is larger than the diameter of the first through hole 6 ; the second through hole 7 is located on the side of the first through hole 6 away from the guiding seat 1 ; the first through hole 6 and the second through hole 7 are coaxial and connected.

[0032] In this embodiment, during installation, the guide seat 1 can be fixedly set with the external fixing device, and the needle seat 5 is slidably penetrated from the top of the PIN needle 3 through the first through hole 6 to the bottom of the PIN needle 3, so that the limiting part 4 is accommodated in the second through hole 7. The needle seat 5 can be fixedly connected with the external lifting device, so that the bottom of the PIN needle 3 is restricted by the external lifting device, and then the activity space of the limiting part 4 in the up and down directions is restricted, so as to prevent the PIN needle 3 from detaching from the needle seat 5. During the installation process, the needle seat 5 is coaxially arranged with the guide seat 1, and the PIN needle 3 is slidably penetrated in the pinhole 2 of the guide seat 1. When the PIN needle 3 is lifted, the external lifting device drives the needle seat 5 and the PIN needle 3 moves along the axial direction of the pinhole 2. When the coaxiality of the PIN needle 3 and the pinhole 2 of the guiding seat 1 is poor, the PIN needle 3 is subjected to the lateral force of the pinhole 2 during the lifting process. Since the PIN needle 3 is clearance-matched in the needle seat 5, the bottom end of the PIN needle 3 can be fine-tuned in the needle seat 5, so that the coaxiality of the PIN needle 3 and the pinhole 2 of the guiding seat 1 is consistent, and the PIN needle 3 is smoothly lifted along the predetermined direction, avoiding the PIN needle 3 from bending or even breaking due to the misalignment with the pinhole 2 of the guiding seat 1. The PIN needle 3 guiding structure provided in this embodiment can be applied to the scene of lifting a single PIN needle 3, and is also applicable to the scene of lifting multiple PIN needles 3, and has a wide range of applications.

[0033] Example 2

[0034] As a further improvement to Example 1, Figure 3 and Figure 4 As shown, a plurality of countersunk holes 8 are provided on the needle seat 5 along the axial direction of the PIN needle 3, which are suitable for connecting an external lifting device through screws cooperating with the countersunk holes 8.

[0035] In this embodiment, a countersunk hole 8 is provided on the needle seat 5 to facilitate installation and removal with an external lifting device.

[0036] Based on the above implementation, in a preferred implementation, Figure 4 As shown, a reinforcement portion 9 is provided around the outer side wall of the PIN pin 3 , and the position of the reinforcement portion 9 corresponds to the position of the first through hole 6 , and the reinforcement portion 9 and the first through hole 6 are clearance-matched.

[0037] In this embodiment, the reinforcing portion 9 is provided to improve the strength of the corresponding position of the PIN pin 3 and the first through hole 6, thereby preventing the PIN pin 3 from contacting the first through hole 6 during the fine-tuning process to cause wear or bending, thereby improving the service life.

[0038] Based on the above implementation, in a preferred implementation, Figure 4 As shown, the top height of the reinforcement portion 9 is higher than the top height of the first through hole 6 .

[0039] In this embodiment, the top height of the reinforcement portion 9 is higher than the top of the first through hole 6, which increases the contact area between the reinforcement portion 9 and the first through hole 6, further improves the strength of the corresponding position of the PIN needle 3 and the first through hole 6, avoids the PIN needle 3 from touching the first through hole 6 during the fine-tuning process to cause wear or bending, and improves the service life.

[0040] Based on the above implementation, in a preferred implementation, Figure 4 As shown, the reinforcing portion 9, the limiting portion 4 and the PIN needle 3 are integrated.

[0041] In this embodiment, the structural strength is further improved and the service life is increased through an integrated arrangement.

[0042] Based on the above implementation, in a preferred implementation, Figure 5 As shown, the PIN needle 3 includes a needle rod 301 and a needle head 302 . The needle head 302 is inserted at the top of the needle rod 301 , and the needle head 302 is threadedly connected to the needle rod 301 .

[0043] In this embodiment, the needle rod 301 and the needle hole 2 are slidably matched, and the needle head 302 and the needle rod 301 are threadedly connected, which is convenient for installation and disassembly, and convenient for maintenance and replacement.

[0044] Based on the above implementation, in a preferred implementation, Figure 3 As shown, a plurality of connecting holes 10 are provided on the guiding seat 1 along the axial direction of the needle hole 2 , and are suitable for connecting with an external fixing device through the connecting holes 10 .

[0045] In this embodiment, a connection hole 10 is provided on the needle seat 5 to facilitate installation and removal with an external fixing device.

[0046] The installation and specific working principle of the PIN needle 3 guide structure provided in this embodiment are as follows: during installation, the guide seat 1 can be fixedly connected to the external fixing device through the connecting hole 10, and the needle seat 5 is slidably penetrated from the top of the PIN needle 3 through the first through hole 6 to the bottom of the PIN needle 3, so that the limiting part 4 is accommodated in the second through hole 7, and the reinforcing part 9 is correspondingly penetrated at the first through hole 6. The needle seat 5 can be fixedly connected to the external lifting device through the countersunk hole 8, so that the bottom of the PIN needle 3 is restricted by the external lifting device, and then the movable space of the limiting part 4 in the up and down directions is restricted, so as to prevent the PIN needle 3 from separating from the needle seat 5 during the fine adjustment process. During the installation process, the needle seat 5 is coaxially arranged with the guide seat 1, and the PIN needle 3 is slidably penetrated in the pinhole 2 of the guide seat 1. When the PIN needle 3 is lifted, The PIN needle 3 slides along the axial direction of the needle hole 2. When the coaxiality of the PIN needle 3 and the needle hole 2 of the guide seat 1 is poor, the PIN needle 3 is subjected to the lateral force of the needle hole 2 during the lifting process. Since the PIN needle 3 is clearance-matched in the needle seat 5, the bottom end of the PIN needle 3 can be fine-tuned in the needle seat 5, so that the coaxiality of the PIN needle 3 and the needle hole 2 of the guide seat 1 is consistent, and the PIN needle 3 is smoothly lifted along the predetermined direction, avoiding the PIN needle 3 from bending or even breaking due to the non-coaxiality with the needle hole 2 of the guide seat 1. When the needle head 302 is worn and needs to be replaced, it only needs to twist the needle head 302 to disassemble, which is convenient, fast and cost-saving. The PIN needle 3 guiding structure provided in this embodiment can be applied to the scenario of lifting a single PIN needle 3, and is also suitable for the scenario of lifting multiple PIN needles 3, and has a wide range of uses. The problem that the coaxiality of the pinhole 2 of the guide seat 1 and the PIN needle 3 may have errors due to machining errors and assembly errors in the assembly process in the existing guide structure is solved, and the PIN needle 3 is very likely to break due to misalignment.

[0047] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A PIN needle guide structure, characterized in that: include: The guide seat (1) is provided with a pinhole (2) and is suitable for being fixedly connected to an external fixing device; A PIN needle (3) is adapted to be inserted into the pinhole (2) and to be slidably matched with the pinhole (2); a limiting portion (4) is provided on the outer side wall of the bottom end of the PIN needle (3); A needle seat (5), wherein a first through hole (6) and a second through hole (7) are sequentially penetrated through the needle seat (5); the second through hole (7) is larger than the first through hole (6); and the needle seat (5) is suitable for connecting to an external lifting device; The needle seat (5) is sleeved on the PIN needle (3) through the first through hole (6), and the limiting portion (4) is accommodated in the second through hole (7); the limiting portion (4) and the second through hole (7) are clearance-matched, and the PIN needle (3) and the first through hole (6) are clearance-matched.

2. The PIN needle guide structure according to claim 1, characterized in that: The needle seat (5) is provided with a plurality of countersunk holes (8), which are arranged along the axial direction of the PIN needle (3) and are suitable for connecting an external lifting device by cooperating with the countersunk holes (8) through screws.

3. The PIN needle guide structure according to claim 1, characterized in that: The PIN needle (3) is provided with a reinforcement portion (9) around its outer side wall, the position of the reinforcement portion (9) corresponds to the position of the first through hole (6), and the reinforcement portion (9) and the first through hole (6) are clearance-matched.

4. The PIN needle guide structure according to claim 3, characterized in that: The top of the reinforcement portion (9) is higher than the top of the first through hole (6).

5. The PIN needle guide structure according to claim 3, characterized in that: The reinforcing portion (9), the limiting portion (4) and the PIN needle (3) are integrally arranged.

6. The PIN needle guide structure according to any one of claims 1 to 5, characterized in that: The PIN needle (3) comprises a needle rod (301) and a needle head (302); the needle head (302) is inserted into the top of the needle rod (301), and the needle head (302) is threadedly connected to the needle rod (301).

7. The PIN needle guide structure according to claim 1, characterized in that: The guiding seat (1) is provided with a plurality of connecting holes (10) along the axial direction of the needle hole (2), and is suitable for connecting with an external fixing device through the connecting holes (10).

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