Self-locking quick release device with corner for various screwdriver head extension rods

Abstract

The utility model discloses a self-locking quick release device with a corner for various screwdriver head extension rods, relates to the technical field of sleeve element parts, and aims to solve the problems that screwdriver heads matched with the conventional screwdriver head extension rods are single in specification, and a plurality of screwdriver head extension rods with different specifications are required on mechanical elements, so that the utilization rate of the screwdriver head extension rods is single. The installation cavity is installed in one end of the connecting rod piece inner core, elastic telescopic balls are arranged on the circle of the inner wall of the installation cavity, a movable end is arranged outside one end of the connecting rod piece inner core, and a second spring ring is arranged between the movable end and the connecting rod piece inner core. An inner cavity is formed in the connecting rod piece inner core, an inner core storage and installation mechanism is arranged in the inner cavity, the first spring ring is installed between the inner core storage and installation mechanism and the connecting rod piece inner core, and a first storage cavity is formed in the lower portion of the interior of the inner core storage and installation mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of sleeve element components, and specifically relates to a corner self-locking quick-release device for multiple bit extensions. Background Technique

[0002] There are many types of drilling or tightening components. The sleeve is mainly used for tightening hexagon bolts. The sleeve is mainly provided with a connection port and a cylindrical hole for connection and positioning. The end of the bit can be designed into drill bits or rotating components of different shapes.

[0003] For example, the publication number is CN215789654U, and the Chinese authorized patent name is (a quick-change connection head), including: a cylindrical barrel body. The tail end of the cylindrical barrel body is internally provided with an internal thread counterbore for connecting with the threaded head of a drill gun. The outer side of the head end of the cylindrical barrel body is provided with a square joint for connecting a sleeve. The head end of the cylindrical barrel body is internally provided with a hexagonal connection hole for connecting a bit. This quick-change connection head can be screwed onto the threaded head of a drill gun and connect the sleeve through the square joint, or connect the bit through the hexagonal connection hole. This quick-change connection head can effectively clamp or fix the sleeve and the bit, reducing the investment in various tightening devices. This solution reduces the working cost and complexity and improves the portability of working outdoors.

[0004] However, the specifications of the bits matching the existing bit extensions are single. Multiple bit extensions with different specifications are required on mechanical components, resulting in the problem of single utilization rate of the bit extensions. Therefore, it does not meet the existing requirements. For this reason, we propose a corner self-locking quick-release device for multiple bit extensions. Content of the Utility Model

[0005] The purpose of the utility model is to provide a corner self-locking quick-release device for multiple bit extensions, so as to solve the problem that the specifications of the bits matching the existing bit extensions are single, and multiple bit extensions with different specifications are required on mechanical components, resulting in the problem of single utilization rate of the bit extensions in the above-mentioned background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A corner self-locking quick-release device for multiple bit extensions, including: an outer main body of the connecting rod, and an inner core of the connecting rod member is arranged inside the outer main body of the connecting rod;

[0007] It further includes:

[0008] An installation cavity is installed inside one end of the inner core of the connecting rod member. An elastic telescopic ball is arranged in a circle on the inner wall of the installation cavity. A mobile end head is arranged outside one end of the inner core of the connecting rod member. A second spring ring is arranged between the mobile end head and the inner core of the connecting rod member. An inner cavity is arranged inside the inner core of the connecting rod member, and a receiving and installing inner core mechanism is arranged inside the inner cavity.

[0009] A first spring ring is installed between the receiving and installing inner core mechanism and the inner core of the connecting rod member. A first receiving cavity is arranged below the inside of the receiving and installing inner core mechanism, and a second receiving cavity is arranged above the inside of the receiving and installing inner core mechanism.

[0010] Preferably, a connecting end head is arranged at the other end of the inner core of the connecting rod member, and one end of the connecting end head penetrates and extends into the inner core of the connecting rod member. An angle adjustment ball head is arranged at one end of the connecting end head. An anti-detachment ring is arranged between the other end of the inner core of the connecting rod member and the connecting end head.

[0011] Preferably, a limiting ring is arranged between a circle on the outside of the lower end of the angle adjustment ball head and the inner core of the connecting rod member. An installation groove is arranged on the outer wall of the other end of the connecting end head.

[0012] Preferably, both the anti-detachment ring and the limiting ring are installed in an embedded manner inside the inner wall of the inner core of the connecting rod member.

[0013] Preferably, a first holding convex area is arranged in a circle on the outer walls at both ends of the outer main body of the connecting rod, and the first holding convex area is integrally formed with the outer wall of the outer main body of the connecting rod.

[0014] Preferably, a second holding convex area is arranged in a circle on the outer wall of the mobile end head, and the second holding convex area is integrally formed with the outer wall of the mobile end head.

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

[0016] 1. By arranging the receiving and installing inner core mechanism inside the inner core of the connecting rod member, and the first receiving cavity and the second receiving cavity arranged inside the receiving and installing inner core mechanism, the connecting end heads of various conventional bits on the market can be satisfied. Thus, only using this bit connecting rod can fix various bits, improving the diversification of the use of the device, avoiding the single specification of the bits matched with the existing bit connecting rods, and the problem of single utilization rate of the bit connecting rods when multiple bit connecting rods with different specifications are required for mechanical components.

[0017] 2. By providing an angle-adjusting ball head at one end of the connecting end, when the external connection operation space is narrow, the outer end of the connecting end is pulled out. Synchronously, when the connecting end is pulled out, the angle-adjusting ball head provided at one end of the connecting end also moves outward, and an angle deviation within 25° can be achieved, so as to facilitate the convenient fixation of the other end of the connecting end inside the electric drill. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 is a front view structural schematic diagram of the present utility model;

[0020] Figure 3 is a cross-sectional structural schematic diagram of the inner core of the connecting rod member of the present utility model;

[0021] In the figure: 100, the outer main body of the connecting rod; 1001, the anti-detachment ring; 1002, the limiting ring; 1003, the inner cavity; 1004, the receiving and installing inner core mechanism; 100401, the first receiving cavity; 100402, the second receiving cavity; 1005, the first spring ring; 101, the first gripping protrusion area; 103, the mobile end head; 104, the second gripping protrusion area; 105, the inner core of the connecting rod member; 10501, the installation cavity; 10502, the elastic telescopic ball; 10503, the second spring ring; 106, the connecting end; 10601, the angle-adjusting ball head; 10602, the installation groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Embodiment 1

[0024] Please refer to Figures 1 - 3 , an embodiment provided by the present utility model: A corner self-locking quick-release device for a variety of bit extensions, including: an outer main body 100 of the connecting rod, and an inner core 105 of the connecting rod member is provided inside the outer main body 100 of the connecting rod;

[0025] It further includes:

[0026] The installation cavity 10501 is installed inside one end of the inner core 105 of the connecting rod member. A circle of elastic telescopic balls 10502 is arranged on the inner wall of the installation cavity 10501. A mobile end head 103 is arranged outside one end of the inner core 105 of the connecting rod member. A second spring ring 10503 is arranged between the mobile end head 103 and the inner core 105 of the connecting rod member. An inner cavity 1003 is arranged inside the inner core 105 of the connecting rod member, and a storage and installation inner core mechanism 1004 is arranged inside the inner cavity 1003;

[0027] The first spring ring 1005 is installed between the storage and installation inner core mechanism 1004 and the inner core 105 of the connecting rod member. A first storage cavity 100401 is arranged below the inside of the storage and installation inner core mechanism 1004, and a second storage cavity 100402 is arranged above the inside of the storage and installation inner core mechanism 1004.

[0028] The storage and installation inner core mechanism 1004 arranged inside the inner core 105 of the connecting rod member, and the first storage cavity 100401 and the second storage cavity 100402 arranged inside the storage and installation inner core mechanism 1004 can meet the connection ends of various conventional bit heads on the market.

[0029] Embodiment 2

[0030] Please refer to Figure 3 , a connection end 106 is arranged at the other end of the inner core 105 of the connecting rod member, and one end of the connection end 106 penetrates and extends into the inside of the inner core 105 of the connecting rod member. An angle adjustment ball head 10601 is arranged at one end of the connection end 106. An anti-drop ring 1001 is arranged between the other end of the inner core 105 of the connecting rod member and the connection end 106. A limiting ring 1002 is arranged between the outer circle of the lower end of the angle adjustment ball head 10601 and the inner core 105 of the connecting rod member. An installation groove 10602 is arranged on the outer wall of the other end of the connection end 106. The anti-drop ring 1001 and the limiting ring 1002 are both installed in an embedded manner inside the inner wall of the inner core 105 of the connecting rod member.

[0031] By arranging the angle adjustment ball head 10601 at one end of the connection end 106, when the external connection operation space is narrow, the outer end of the connection end 106 can be pulled out. Synchronously, when the connection end 106 is pulled out, the angle adjustment ball head 10601 at one end of the connection end 106 moves outwards together, and an angle deviation within 25° can be achieved, so as to facilitate the convenient fixation of the other end of the connection end 106 inside the electric drill.

[0032] Please refer to Figure 1 - Figure 3, a first gripping projection area 101 is provided on the outer walls of both ends of the outer body 100 of the connecting rod, and the first gripping projection area 101 is integrally formed with the outer wall of the outer body 100 of the connecting rod. A second gripping projection area 104 is provided on the outer wall of the mobile head 103, and the second gripping projection area 104 is integrally formed with the outer wall of the mobile head 103.

[0033] The settings of the first gripping projection area 101 and the second gripping projection area 104 can effectively enhance the frictional force of gripping.

[0034] Working principle: By means of the storage and installation inner core mechanism 1004 provided inside the inner core 105 of the connecting rod, and the first storage cavity 100401 and the second storage cavity 100402 provided inside the storage and installation inner core mechanism 1004, the connection ends of various conventional bits on the market can be satisfied. Thus, only using this bit connecting rod can fix various bits, improving the diversification of the use of this device. At the same time, when the external connection operation space is narrow, pull out the outer end of the connection end 106. When the connection end 106 is pulled out, the angle adjustment ball head 10601 provided at one end of the connection end 106 moves outward synchronously, and an angular deviation within 25° can be achieved, so as to facilitate the convenient fixation of the other end of the connection end 106 inside the electric drill.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A self-locking quick-release device with a corner for various screwdriver bit connecting rods, comprising a connecting rod outer body (100), wherein a connecting rod inner core (105) is arranged inside the connecting rod outer body (100); Features: Also includes: An installation cavity (10501) is installed inside one end of the connecting rod inner core (105); an elastic retractable ball (10502) is arranged around the inner wall of the installation cavity (10501); a movable end (103) is arranged outside one end of the connecting rod inner core (105); a second spring ring (10503) is arranged between the movable end (103) and the connecting rod inner core (105); an inner cavity (1003) is arranged inside the connecting rod inner core (105); and a mechanism (1004) for storing and installing the inner core is arranged inside the inner cavity (1003); A first spring coil (1005) is installed between the storage and installation inner core mechanism (1004) and the connecting rod inner core (105); a first storage cavity (100401) is provided at the lower part of the storage and installation inner core mechanism (1004); and a second storage cavity (100402) is provided at the upper part of the storage and installation inner core mechanism (1004).

2. A self-locking quick-release device with corners for various bit extension rods according to claim 1, characterized in that: The other end of the connecting rod inner core (105) is provided with a connecting end (106), and one end of the connecting end (106) penetrates and extends into the interior of the connecting rod inner core (105), one end of the connecting end (106) is provided with an angle adjustment ball head (10601), and an anti-dropping ring (1001) is provided between the other end of the connecting rod inner core (105) and the connecting end (106).

3. A self-locking quick-release device with corners for various bit extension rods according to claim 2, characterized in that: A limiting circle (1002) is provided between a circle outside the lower end of the angle adjustment ball head (10601) and the inner core (105) of the connecting rod, and a mounting groove (10602) is provided on the outer wall of the other end of the connecting end head (106).

4. The self-locking quick-release device with corner for various bit connecting rods according to claim 2, characterized in that: The anti-drop ring (1001) and the limiting ring (1002) are both embeddedly installed inside the inner wall of the inner core (105) of the connecting rod.

5. The self-locking quick-release device with corner for various bit extension rods according to claim 1, characterized in that: A circle of outer walls at both ends of the connecting rod body outer body (100) is provided with a first gripping protrusion area (101), and the first gripping protrusion area (101) is formed integrally with the outer wall of the connecting rod body outer body (100).

6. The self-locking quick-release device with corners for various bit extension rods according to claim 1, characterized in that: A second gripping raised area (104) is arranged around the outer wall of the movable terminal (103), and the second gripping raised area (104) and the outer wall of the movable terminal (103) are formed in one piece.

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