Handheld quick-change structure for tightening sleeve

Abstract

The utility model relates to a handheld tightening sleeve quick-change structure which comprises a tightening tool, a power output shaft of the tightening tool is connected with a vacuum sleeve, and a quick-change connector is further arranged between the vacuum sleeve and the power output shaft of the tightening tool. The vacuum sleeve comprises a hollow sleeve used for picking up bolts and a connecting column connected with a power output shaft of a tightening tool, the outer circumferential face of the connecting portion of the hollow sleeve and the connecting column is sleeved with a vacuumizing sleeve, and an air channel is formed between the inner wall of the vacuumizing sleeve and the outer wall of the connecting column. A plurality of through holes are formed in the side wall of the end, close to the connecting column, of the hollow sleeve and used for communicating the air channel with an inner cavity of the hollow sleeve. According to the handheld tightening sleeve, the vacuumizing assembly is communicated with the tightening sleeve, so that the tightening sleeve has the capability of automatically adsorbing a bolt, and the use convenience of the handheld tightening sleeve is improved; and the quick-change connector is arranged, so that the tightening sleeve can be quickly disassembled and assembled, and the vacuum degree and the positioning precision of the tightening sleeve are not influenced in the replacement process.

Description

Technical Field

[0001] The present application belongs to the technical field of handheld bolt tightening equipment, and in particular, relates to a handheld tightening sleeve quick-change structure. Background Art

[0002] In the field of industrial production and maintenance, tightening sleeves are often needed to tighten or remove bolts or nuts. Traditional tightening sleeves need to be inserted into the sleeve by hand during operation. Vacuum adsorption sleeves have the ability to self-adsorb bolts, but vacuum tightening sleeves generally need to be fixed to the power output rod of the electric screwdriver by screws. Tightening sleeves of different specifications need to be frequently replaced during use, which is cumbersome and inefficient. Frequent replacement of tightening sleeves easily affects the vacuum degree of the tightening sleeve. Therefore, a structure that can quickly replace tightening sleeves is needed to improve work efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to solve the deficiencies in the prior art, thereby providing a handheld tightening sleeve quick-change structure, aiming at quickly disassembling and assembling the tightening sleeve without affecting the vacuum degree and positioning accuracy.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A handheld tightening sleeve quick-change structure, comprising:

[0006] A tightening tool, wherein the power output shaft of the tightening tool is connected to a vacuum sleeve, and a quick-change joint is further provided between the vacuum sleeve and the power output shaft of the tightening tool;

[0007] The vacuum sleeve comprises a hollow sleeve for picking up bolts and a connecting column connected to a power output shaft of a tightening tool, a vacuum sleeve is sleeved on the outer circumference of the connecting portion of the hollow sleeve and the connecting column, and an air passage is provided between the inner wall of the vacuum sleeve and the outer wall of the connecting column;

[0008] A plurality of through holes are arranged on the side wall of the hollow sleeve near one end of the connecting column, and the through holes are used to connect the airway with the inner cavity of the hollow sleeve.

[0009] Preferably, in a handheld tightening sleeve quick-change structure of the utility model, the cross-section of the connection portion between the quick-change connector and the connecting column is configured as a regular polygonal structure.

[0010] Preferably, in a handheld tightening sleeve quick-change structure of the utility model, an arcuate annular groove is provided at the tail of the connecting column, a stepped through hole is provided on the inner wall of the quick-change joint, a steel ball is placed in the stepped through hole, and a floating sleeve for limiting the distance between the steel ball and the connecting column is elastically floatingly sleeved on the quick-change joint.

[0011] Preferably, in the handheld tightening sleeve quick-change structure of the utility model, the vacuum sleeve is connected to a vacuum joint, and a first sealing ring is provided between the vacuum sleeve and the connecting column.

[0012] Preferably, in a handheld tightening sleeve quick-change structure of the utility model, one end of the vacuum sleeve close to the hollow sleeve is threadedly connected with a guide sleeve for guiding and supporting the hollow sleeve, and a second sealing ring is provided between the guide sleeve and the vacuum sleeve.

[0013] Preferably, in a handheld tightening sleeve quick-change structure of the utility model, a clamping block is fixedly connected to the tightening tool, a bracket is fixedly connected to the clamping block, and the vacuum sleeve is fixedly connected to the bracket.

[0014] Preferably, in a handheld tightening sleeve quick-change structure of the utility model, the vacuum sleeve is provided with a avoidance hole at the floating sleeve for moving the floating sleeve.

[0015] Preferably, in the handheld tightening sleeve quick-change structure of the utility model, the inner cavity of the head of the hollow sleeve is provided with an inner hexagonal cavity wall for picking up the hexagonal bolts.

[0016] The beneficial effects of the utility model are:

[0017] (1) The utility model provides a vacuum assembly connected to the tightening sleeve, so that the tightening sleeve has the ability to automatically absorb the bolt, thereby improving the convenience of using the handheld tightening sleeve;

[0018] (2) The utility model is provided with a quick-change joint to realize the rapid disassembly and assembly of the tightening sleeve, and the vacuum degree and positioning accuracy of the tightening sleeve are not affected during the replacement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the external structure of an embodiment of the present application;

[0021] Figure 2 is a schematic cross-sectional structure diagram of an embodiment of the present application;

[0022] Figure 3 yes Figure 2 The enlarged schematic diagram at A in the middle;

[0023] The reference numerals in the figure are:

[0024] Tightening tool 10, vacuum sleeve 11, quick-change joint 12, vacuum sleeve 13, vacuum joint 14, first sealing ring 15, guide sleeve 16, second sealing ring 17, clamping block 18, bracket 19;

[0025] Hollow sleeve 111 , connecting column 112 , steel ball 121 , floating sleeve 122 . DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 scope of protection of the present application. In addition, the terms "first", "second", etc. are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 this application can be understood by specific circumstances.

[0029] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] This embodiment provides a handheld tightening sleeve quick-change structure, and its structure refers to Figure 1 , including a tightening tool 10, the tightening tool 10 adopts an electric screwdriver, and the power output shaft of the tightening tool 10 is connected with a vacuum sleeve 11.

[0031] Preferably, a handheld tightening sleeve quick-change structure of this embodiment, referring to Figure 2 and Figure 3The vacuum sleeve 11 includes a hollow sleeve 111 for picking up bolts and a connecting column 112 connected to the power output shaft of the tightening tool 10. The hollow sleeve 111 and the connecting column 112 are integrally formed and connected. A vacuum sleeve 13 is sleeved on the outer circumferential surface of the connecting portion between the hollow sleeve 111 and the connecting column 112, and an air passage is arranged between the inner wall of the vacuum sleeve 13 and the outer wall of the connecting column 112.

[0032] Preferably, in a handheld tightening sleeve quick-change structure of the present embodiment, a plurality of through holes are provided on the side wall of the hollow sleeve 111 near one end of the connecting column 112 , and the through holes are used to connect the airway with the inner cavity of the hollow sleeve 111 .

[0033] Preferably, in the handheld tightening sleeve quick-change structure of the present embodiment, a vacuum sleeve 13 is connected to a vacuum joint 14 , and a first sealing ring 15 is provided between the vacuum sleeve 13 and the connecting column 112 .

[0034] Preferably, in a handheld tightening sleeve quick-change structure of this embodiment, one end of the vacuum sleeve 13 close to the hollow sleeve 111 is threadedly connected with a guide sleeve 16 for guiding and supporting the hollow sleeve 111, and a second sealing ring 17 is provided between the guide sleeve 16 and the vacuum sleeve 13.

[0035] The first sealing ring 15 and the second sealing ring 17 are provided to enhance the sealing performance of the air passage and improve the adsorption force of the hollow sleeve 111 on the bolt.

[0036] Preferably, in the handheld tightening sleeve quick-change structure of this embodiment, the head inner cavity of the hollow sleeve 111 is provided with an inner hexagonal cavity wall for picking up the hexagonal bolts.

[0037] Preferably, in a handheld tightening sleeve quick-change structure of the present embodiment, the side wall of the guide sleeve 16 is also provided with a plurality of air-permeable holes communicating with the inner cavity for balancing the air pressure. When the sleeve is installed and disassembled, the pressure between the outer wall of the hollow sleeve 111 and the inner cavity of the guide sleeve 16 is balanced, thereby facilitating the movement of the hollow sleeve 111.

[0038] Preferably, in a handheld tightening sleeve quick-change structure of the present embodiment, a quick-change joint 12 is further provided between the vacuum sleeve 11 and the power output shaft of the tightening tool 10, an arc-shaped annular groove is provided at the tail of the connecting column 112, a step through hole is provided on the inner wall of the quick-change joint 12, a steel ball 121 is placed in the step through hole, and a floating sleeve 122 for limiting the distance between the steel ball 121 and the connecting column 112 is elastically and floatingly sleeved on the quick-change joint 12. Specifically, the outer end of the quick-change joint 12 body and the middle of the inner wall of the floating sleeve 122 are connected by a boss stop The ring is installed with a compression spring, and the inner wall of the floating sleeve 122 near one end of the tightening tool 10 is set as a step cavity, and the inner diameter near the port is large. When no external force is applied, the thin-diameter inner wall of the step cavity contacts the steel ball, pressing the steel ball into the arc-shaped ring groove at the tail of the connecting column 112, locking the connecting column 112 on the quick-change connector 12; when the floating sleeve 122 is pulled outward, the steel ball contacts the thick-diameter inner wall of the step cavity, pulling the vacuum sleeve 11 outward, and the arc-shaped ring groove at the tail of the connecting column 112 squeezes the steel ball outward, and the connecting column 112 is separated from the quick-change connector 12.

[0039] Preferably, in a handheld tightening sleeve quick-change structure of the present embodiment, the cross-section of the connection portion between the quick-change connector 12 and the connecting column 112 is configured as a regular polygonal structure to prevent the quick-change connector 12 and the connecting column 112 from rotating relative to each other.

[0040] Preferably, in a handheld tightening sleeve quick-change structure of the present embodiment, a clamping block 18 is fixedly connected to the tightening tool 10 , a bracket 19 is fixedly connected to the clamping block 18 , and the vacuum sleeve 13 is fixedly connected to the bracket 19 .

[0041] Preferably, in the handheld tightening sleeve quick-change structure of this embodiment, the vacuum sleeve 13 is provided with a relief hole at the floating sleeve for moving the floating sleeve 122 .

[0042] In actual work, when the vacuum sleeve 11 needs to be replaced, it is only necessary to pull the floating sleeve 122 outward to pull out the vacuum sleeve 11, insert the new vacuum sleeve 11 from the guide sleeve 16 into the quick-change connector 12, and release the floating sleeve 122 to complete the replacement of the vacuum sleeve.

[0043] Based on the above ideal embodiments of this application, the relevant staff can make various changes and modifications without departing from the technical concept of this application through the above description. The technical scope of this application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A handheld tightening sleeve quick-change structure, characterized in that: include: A tightening tool (10), wherein the power output shaft of the tightening tool (10) is connected to a vacuum sleeve (11), and a quick-change joint (12) is further provided between the vacuum sleeve (11) and the power output shaft of the tightening tool (10); The vacuum sleeve (11) comprises a hollow sleeve (111) for picking up bolts and a connecting column (112) connected to a power output shaft of a tightening tool (10); a vacuum sleeve (13) is sleeved on the outer circumferential surface of the connecting portion between the hollow sleeve (111) and the connecting column (112); an air passage is provided between the inner wall of the vacuum sleeve (13) and the outer wall of the connecting column (112); A plurality of through holes are provided on the side wall of the hollow sleeve (111) at one end close to the connecting column (112), and the through holes are used to connect the airway with the inner cavity of the hollow sleeve (111).

2. A handheld tightening sleeve quick-change structure according to claim 1, characterized in that: The cross section of the connection portion between the quick-change connector (12) and the connection column (112) is configured as a regular polygonal structure.

3. A handheld tightening sleeve quick-change structure according to claim 2, characterized in that: The tail of the connecting column (112) is provided with an arcuate annular groove, the inner wall of the quick-change joint (12) is provided with a stepped through hole, a steel ball (121) is placed in the stepped through hole, and a floating sleeve (122) for limiting the distance between the steel ball (121) and the connecting column (112) is elastically and floatingly sleeved on the quick-change joint (12).

4. A handheld tightening sleeve quick-change structure according to any one of claims 1 to 3, characterized in that: The vacuum sleeve (13) is connected to a vacuum joint (14), and a first sealing ring (15) is provided between the vacuum sleeve (13) and the connecting column (112).

5. A handheld tightening sleeve quick-change structure according to claim 4, characterized in that: One end of the vacuum sleeve (13) close to the hollow sleeve (111) is threadedly connected with a guide sleeve (16) for guiding and supporting the hollow sleeve (111), and a second sealing ring (17) is provided between the guide sleeve (16) and the vacuum sleeve (13).

6. A handheld tightening sleeve quick-change structure according to any one of claims 1 to 3, characterized in that: The tightening tool (10) is fixedly connected to a clamping block (18), the clamping block (18) is fixedly connected to a bracket (19), and the vacuum sleeve (13) is fixedly connected to the bracket (19).

7. A handheld tightening sleeve quick-change structure according to claim 6, characterized in that: The vacuum sleeve (13) is provided with a position avoidance hole located at the floating sleeve, which is used to move the floating sleeve (122).

8. A handheld tightening sleeve quick-change structure according to any one of claims 1 to 3, characterized in that: The inner cavity of the head of the hollow sleeve (111) is provided with an inner hexagonal cavity wall for picking up the hexagonal bolts.

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