Fixing pin fastening structure

Abstract

A fixing pin fastening structure comprises an adjusting bolt column, an upper fixing pin column, a lower fixing pin column and a fastening assembly, the lower end of the upper fixing pin column is connected with the upper end of the lower fixing pin column, an inner cavity of the upper fixing pin column is in threaded connection with the upper half portion of the adjusting bolt column, and the lower half portion of the adjusting bolt column is inserted into an inner cavity of the lower fixing pin column. A fastening assembly is installed at the bottom of an inner cavity of the lower fixing pin column, a pressure spring is arranged between the fastening assembly and the wall of the inner cavity of the lower fixing pin column, and the inner side of the fastening assembly abuts against the adjusting bolt column. The fixing pin has the advantages that the fastening assembly is arranged on the fixing pin, so that when the fixing pin is used, a worker can adjust the fastening capacity of the fixing pin according to needs, the worker can conveniently install and use the fixing pin, and the practical effect of the fixing pin is improved.

Description

Technical Field

[0001] The utility model relates to a fixing pin, in particular to a fixing pin fastening structure. Background Art

[0002] A retaining pin, also known as a locating pin, is a widely used connection and positioning element in mechanical engineering. As a crucial mechanical component, retaining pins play an indispensable role in industrial production. By properly selecting and using retaining pins, you can ensure the precision, stability, and safety of mechanical equipment.

[0003] Existing Chinese patent 200920091376.2 discloses an automatically locking fixing pin. The pin comprises a cylindrical rod with a pin head at its top and a cap at its end. The pin head is provided with a projection and an opening. The pin head, rod, and cap form an integral structure. The projection is provided on the conical portion of the pin head. The difference between the diameter of the outer circumference of the projection and the diameter of the outer circumference of the cylindrical rod is equal to the width of the opening. The opening is cross-shaped and its length is greater than one-third of the length of the pin head. Due to the opening and projection on the pin head, when the pin head is inserted into a device hole, the pin head can be tightened or expanded by the action of the opening and projection, thereby locking or withdrawing the device. This technically solves the problem of commercially available products that can only be inserted but not removed. The product can be used multiple times, has good locking performance, is strong, and is easy to insert and remove. It has a simple structure, is easy to operate, has a long service life, is easy to produce, and is low in cost, making it an ideal replacement product.

[0004] Although the existing technology can be used multiple times, has good locking performance, is powerful, and is convenient for pin insertion and removal, has a simple structure, is easy to operate, has a long service life, is easy to produce, and has a low cost, it is an ideal replacement product. However, during installation and use, the staff cannot adjust its fastening effect, and its fastening effect is relatively poor. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies and defects in the prior art and provide a fixing pin fastening structure. A fastening assembly is provided on the fixing pin, so that when the fixing pin is used, the staff can adjust the fastening capacity of the fixing pin according to needs, which not only facilitates the installation and use of the fixing pin, but also increases the practical effect of the fixing pin.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a fixing pin fastening structure, which includes an adjusting bolt column 1, an upper fixing pin 2, a lower fixing pin 3 and a fastening assembly 5, the lower end of the upper fixing pin 2 is connected to the upper end of the lower fixing pin 3, and the inner cavity of the upper fixing pin 2 is threadedly connected to the upper half of the adjusting bolt column 1, the lower half of the adjusting bolt column 1 is inserted into the inner cavity of the lower fixing pin 3, the bottom of the inner cavity of the lower fixing pin 3 is installed with a fastening assembly 5, and a pressure spring 4 is provided between the fastening assembly 5 and the inner cavity wall of the lower fixing pin 3, and the inner side of the fastening assembly 5 is in contact with the adjusting bolt column 1.

[0007] Furthermore, the adjusting bolt column 1 includes an external thread column 12 , one end of which is fixedly connected to a conical column head 13 , and a screw hole 11 is formed at the top of the external thread column 12 .

[0008] Furthermore, an internal threaded hole 21 is provided in the middle of the upper fixing pin 2 , and an external threaded connecting plate 22 is fixedly connected to the bottom of the upper fixing pin 2 .

[0009] Furthermore, an adjusting through hole 31 is formed inwardly in the middle of the lower fixing pin 3 , a fastening through hole 33 is provided on the side of the adjusting through hole 31 , and a connecting threaded hole 32 is provided at the opening of the adjusting through hole 31 of the lower fixing pin 3 .

[0010] Furthermore, the fastening assembly 5 includes a bottom transverse plate 55 , the outer end of which is fixedly connected to an adjusting tilting plate 51 , a fastening shaft column 52 is provided on the outer side of the top end of the adjusting tilting plate 51 , and a spring groove 54 is opened on the outer side of the adjusting tilting plate 51 .

[0011] Furthermore, an anti-slip pad 53 is provided at the outer end of the fastening shaft column 52 for increasing the friction force of the fastening shaft column 52 .

[0012] Furthermore, there are at least four fastening through holes 33 , adjusting tilting plates 51 and fastening shaft columns 52 .

[0013] After adopting the above technical solution, the beneficial effect of the utility model is: a fastening component is provided on the fixing pin, so that when the fixing pin is used, the staff can adjust the fastening ability of the fixing pin according to needs, which not only facilitates the installation and use of the fixing pin, but also increases the practical effect of the fixing pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] Figure 2 It is a structural schematic diagram of the adjusting bolt column in the utility model.

[0017] Figure 3 yes Figure 2 Corresponding front view structural diagram.

[0018] Figure 4 It is a structural diagram of the upper fixing pin in the utility model.

[0019] Figure 5 yes Figure 4 Corresponding cross-sectional structural diagram.

[0020] Figure 6 It is a structural diagram of the lower fixing pin in the utility model.

[0021] Figure 7 It is a schematic cross-sectional structural diagram of the lower fixing pin in the utility model.

[0022] Figure 8 It is a structural diagram of the fastening assembly in the utility model.

[0023] Figure 9 yes Figure 8 The corresponding top view structure diagram.

[0024] Figure 10 It is a structural diagram of embodiment 2 of the present utility model.

[0025] Explanation of the accompanying drawings: adjusting bolt column 1, upper fixing pin 2, lower fixing pin 3, pressure spring 4, fastening assembly 5, retractable elastic rope 6, screw hole 11, external threaded column 12, conical column head 13, internal threaded hole 21, external threaded connecting plate 22, adjusting through hole 31, connecting threaded hole 32, fastening through hole 33, adjusting tilting plate 51, fastening shaft column 52, anti-slip gasket 53, spring groove 54, bottom horizontal plate 55. DETAILED DESCRIPTION Example

[0026] See Figures 1-9As shown, the technical solution adopted in this specific embodiment is: it includes an adjusting bolt column 1, an upper fixing pin 2, a lower fixing pin 3 and a fastening assembly 5, the lower end of the upper fixing pin 2 is connected to the upper end of the lower fixing pin 3, and the inner cavity of the upper fixing pin 2 is threadedly connected to the upper half of the adjusting bolt column 1, the lower half of the adjusting bolt column 1 is inserted into the inner cavity of the lower fixing pin 3, the fastening assembly 5 is installed at the bottom of the inner cavity of the lower fixing pin 3, and a pressure spring 4 is provided between the fastening assembly 5 and the inner cavity wall of the lower fixing pin 3, and the inner side of the fastening assembly 5 is in contact with the adjusting bolt column 1.

[0027] More specifically, the adjustment bolt column 1 includes an externally threaded column 12, one end of which is fixedly connected to a tapered column head 13, and a screw hole 11 is formed at the top of the externally threaded column 12. When adjusting the tightening force of the fastening component 5, the operator only needs to rotate the screwdriver to align it with the screw hole 11, thereby driving the externally threaded column 12 and the tapered column head 13 to rotate, allowing the externally threaded column 12 to rotate relative to the internally threaded hole 21, thereby squeezing the fastening component 5 through the tapered column head 13.

[0028] More specifically, an internally threaded hole 21 is formed in the middle of the upper fixing pin 2, and an externally threaded connecting plate 22 is fixedly connected to the bottom of the upper fixing pin 2. The upper fixing pin 2 is connected to the lower fixing pin 3 via the externally threaded connecting plate 22, thereby connecting the upper fixing pin 2 and the lower fixing pin 3 together. The internally threaded hole 21 can cooperate with the externally threaded column 12, allowing the externally threaded column 12 to be moved and adjusted based on the upper fixing pin 2.

[0029] More specifically, an adjustment hole 31 is formed inwardly in the middle of the lower fixing pin 3, with a fastening hole 33 formed on the side of the adjustment hole 31. A connecting threaded hole 32 is also provided at the opening of the adjustment hole 31 of the lower fixing pin 3. The connecting threaded hole 32 cooperates with the externally threaded connecting plate 22 to connect the upper fixing pin 2 and the lower fixing pin 3. The adjustment hole 31 is used to mount the fastening assembly 5, facilitate the movement of the tapered column head 13, and facilitate the movement of the fastening shaft column 52 through the fastening hole 33.

[0030] More specifically, the fastening assembly 5 includes a bottom horizontal plate 55, the outer end of which is fixedly connected to the adjustable tilt plate 51. A fastening shaft 52 is provided on the outer side of the top end of the adjustable tilt plate 51, and a spring groove 54 is formed on the outer side of the adjustable tilt plate 51. During use, the spring groove 54 facilitates the installation of the pressure spring 4, while the adjustable tilt plate 51 ensures the relative position of the fastening shaft 52.

[0031] More specifically, an anti-slip pad 53 is provided at the outer end of the fastening shaft column 52 for increasing the friction force of the fastening shaft column 52 .

[0032] More specifically, there are at least four fastening through holes 33, at least four adjusting tilt plates 51, and at least four fastening shaft columns 52. The plurality of fastening through holes 33, at least four adjusting tilt plates 51, and at least four fastening shaft columns 52 can enhance the fastening effect of the fixing pin. Example

[0033] See Figure 10 As shown, the difference between this embodiment and the first embodiment is that the fastening assembly 5 is provided with a retractable elastic cord 6. By adding the retractable elastic cord 6, the fastening shaft column 52 can be ensured to return to its original state more quickly, thereby timely reducing the fastening effect of the fixing pin.

[0034] After the cam 11 is in the state of being stepped on, the fixing bolt 12 is tightened, and the fixing bolt 13 is tightened, so that the fixing bolt 11 can be tightened to the desired position.

[0035] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A fixing pin fastening structure, characterized in that: It comprises an adjusting bolt column (1), an upper fixing pin column (2), a lower fixing pin column (3) and a fastening assembly (5); the lower end of the upper fixing pin column (2) is connected to the upper end of the lower fixing pin column (3), and the inner cavity of the upper fixing pin column (2) is threadedly connected to the upper half of the adjusting bolt column (1); the lower half of the adjusting bolt column (1) is inserted into the inner cavity of the lower fixing pin column (3); the fastening assembly (5) is installed at the bottom of the inner cavity of the lower fixing pin column (3), and a pressure spring (4) is provided between the fastening assembly (5) and the inner cavity wall of the lower fixing pin column (3); the inner side of the fastening assembly (5) is in contact with the adjusting bolt column (1).

2. The fixing pin fastening structure according to claim 1, characterized in that: The adjusting bolt column (1) comprises an external thread column (12), one end of the external thread column (12) is fixedly connected to a conical column head (13), and a screw hole (11) is provided at the top end of the external thread column (12).

3. The fixing pin fastening structure according to claim 1, characterized in that: An internal threaded hole (21) is provided in the middle of the upper fixing pin (2), and an external threaded connecting plate (22) is fixedly connected to the bottom of the upper fixing pin (2).

4. The fixing pin fastening structure according to claim 1, characterized in that: The middle portion of the lower fixing pin (3) is formed with an inwardly concave adjustment through hole (31), a fastening through hole (33) is provided on the side of the adjustment through hole (31), and a connecting threaded hole (32) is provided at the opening of the adjustment through hole (31) of the lower fixing pin (3).

5. The fixing pin fastening structure according to claim 1, characterized in that: The fastening assembly (5) comprises a bottom transverse plate (55), the outer end of the bottom transverse plate (55) is fixedly connected to an adjusting tilting plate (51), a fastening shaft column (52) is provided on the outer side of the top end of the adjusting tilting plate (51), and a spring groove (54) is provided on the outer side of the adjusting tilting plate (51).

6. The fixing pin fastening structure according to claim 5, characterized in that: The outer end of the fastening shaft column (52) is provided with an anti-slip pad (53) for increasing the friction force of the fastening shaft column (52).

7. The fixing pin fastening structure according to claim 4, characterized in that: There are at least four of each of the fastening through hole (33), the adjusting tilt plate (51) and the fastening shaft column (52).

8. The fixing pin fastening structure according to claim 1, characterized in that: The fastening assembly (5) is provided with a retractable elastic cord (6).

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