CN216030483U - Pneumatic wrench and operating switch - Google Patents
Pneumatic wrench and operating switch Download PDFInfo
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- CN216030483U CN216030483U CN202122575773.0U CN202122575773U CN216030483U CN 216030483 U CN216030483 U CN 216030483U CN 202122575773 U CN202122575773 U CN 202122575773U CN 216030483 U CN216030483 U CN 216030483U
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- fixing pin
- switch
- machine body
- operating switch
- limiting
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Abstract
The utility model discloses a pneumatic wrench and an operating switch. The operation switch includes: a switch is buckled; a fixing pin for penetrating into the mounting hole of the machine body; the fixing pin penetrates through the middle part of the switch pull buckle to realize the hinge joint of the switch pull buckle and the fixed shaft of the machine body; the limiting piece is used for penetrating into the machine body at an angle parallel to or intersected with the fixing pin and is tightly matched with the machine body; the end part of the limiting part is pressed against the end part of the fixing pin. This operating switch adds the locating part on original switch structure's basis, when the fixed pin produces the little displacement volume of deviating from outward to the fuselage, the locating part is pushed to the tip of fixed pin, lead to the locating part to produce little deflection angle in the fuselage, the locating part blocks because of this little deflection angle and dies in the current position, realize utilizing the locating part to retrain the mounted position of fixed pin in the fuselage from this, avoid the fixed pin to pull the frequent action of detaining because of the switch and become flexible and drop, thereby improve the life of operating switch and relevant product.
Description
Technical Field
The utility model relates to the field of switches, in particular to an operating switch. Still relate to a pneumatic spanner, include aforementioned operating switch.
Background
The pneumatic wrench is a hand-held mechanical working tool powered by compressed air for high-speed assembly and disassembly of threaded couplings.
During operation, the pneumatic wrench uses compressed air as a power source, converts the rotation energy of the pneumatic motor into the impact energy of the metal piece, and converts the impact energy into fastening torque for screwing and disassembling the threaded fastener. Based on the working characteristics of the pneumatic wrench, the switch structure of the pneumatic wrench needs to be repeatedly started and stopped, so that the individual structure is easy to wear and is easy to loosen and shift in the switch structure. For example, in a switch structure having a fixed pin and a switch latch, the switch latch is hinged to the air wrench by a fixed pin fixed shaft, and in order to facilitate replacement of parts, the fixed pin is assembled to the housing of the air wrench in a shaft hole fitting manner.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an operating switch, which can improve the connection stability of a fixing pin in a product where the operating switch is positioned and avoid inconvenience or safety risk brought to the use of the product due to loosening of the fixing pin. Another object of the present invention is to provide a pneumatic wrench, which includes the aforesaid operating switch.
To achieve the above object, the present invention provides an operation switch comprising:
a switch is buckled;
a fixing pin for penetrating into the mounting hole of the machine body; the fixing pin penetrates through the middle part of the switch pull buckle to realize the hinge joint of the switch pull buckle and the fixed shaft of the machine body;
the limiting piece is used for penetrating into the machine body at an angle parallel to or intersected with the fixing pin and is tightly matched with the machine body; the end part of the limiting part is pressed against the end part of the fixing pin.
Preferably, the limiting member comprises a rod body and a cap arranged at the end part of the rod body; the cap extends towards any radial bulge of the rod body; the inner end face of the cap compresses the end of the fixing pin.
Preferably, the rod body is parallel to the fixing pin.
Preferably, the rod body is a polished rod.
Preferably, the inner end surface of the cap comprises a fixing pin pressing surface for abutting against the end part of the fixing pin and a limiting pressing surface for abutting against a limiting step surface in the machine body.
Preferably, the limiting member is a countersunk head fastener.
Preferably, the inner end of the limiting member is separated from the switch trigger.
Preferably, the mounting hole includes a first end having a larger radial dimension and a second end having a smaller radial dimension; the fixing pin comprises a release end matched with the second end shaft hole of the mounting hole; the limiting piece is pressed against the release end.
The utility model also provides a pneumatic wrench, which comprises a machine body and the operating switch arranged on the machine body.
Compared with the background technology, the operation switch provided by the utility model comprises a switch trigger; a fixing pin for penetrating into the mounting hole of the machine body; the fixing pin penetrates through the middle part of the switch pull buckle to realize the hinge joint of the switch pull buckle and the fixed shaft of the machine body; the limiting piece is used for penetrating into the machine body at an angle parallel to or intersected with the fixing pin and is tightly matched with the machine body; the end part of the limiting part is pressed against the end part of the fixing pin.
Compared with the original switch structure, the operating switch is additionally provided with the limiting piece. The limiting piece is tightly assembled with the machine body and cannot be separated from the machine body when specific acting force is not applied to the limiting piece from the outside.
In the operating switch, the limiting piece is arranged close to the fixed pin; the stopper may be inserted into the body at an angle parallel to the fixing pin, or may be inserted into the body at an angle intersecting with the fixing pin, and the end of the stopper may abut against the end of the fixing pin, regardless of the former or the latter. Under aforementioned structure position relation, in case the fixed pin produces along self axial when the little displacement volume of deviating from outside the fuselage, the effort can be applyed to the tip of locating part to the fixed pin, no matter the locating part penetrates the fuselage with what kind of angle, this effort that the fixed pin produced can all lead to the locating part to produce little deflection angle in the fuselage, and then leads to locating part "card to die" in the fuselage, realizes utilizing the locating part to retrain the mounted position of fixed pin in the fuselage from this.
Of course, when the fixing pin needs to be disassembled and replaced, an operator can apply acting force in a specific direction to the limiting member and the fixing pin from the outside, and the limiting member generates equal and reverse angular displacement on the basis of the deflection angle, so that the installation angle of the limiting member in the machine body is restored to the initial state. Subsequently, the operator can take out the stopper and the fixing pin one by one from the body.
In summary, the operating switch provided by the utility model utilizes the limiting piece to restrict the mounting position of the fixing pin in the machine body, and the fixing pin is prevented from loosening and falling off due to frequent actions of the switch wrenching, so that the mounting position of the operating switch in the machine body is effectively maintained, and the service lives of the operating switch and related products are prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an air wrench according to an embodiment of the present invention;
FIG. 2 is a schematic view of a partial structure of a pneumatic wrench at a switch buckle according to an embodiment of the present invention;
fig. 3 is an assembly view of the operating switch and the body according to the embodiment of the present invention.
Wherein, 01-machine body, 1-switch pull buckle, 2-fixed pin, 3-spacing piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a pneumatic wrench according to an embodiment of the present invention; FIG. 2 is a schematic view of a partial structure of a pneumatic wrench at a switch buckle according to an embodiment of the present invention; fig. 3 is an assembly view of the operating switch and the body according to the embodiment of the present invention.
The utility model provides an operating switch which comprises a switch trigger 1, a fixing pin 2 and a limiting piece 3.
The operating switch is applied to a specific product, for example, an air wrench, and is provided with an operating switch for controlling the opening and closing of the air wrench.
In the operating switch provided by the utility model, the fixing pin 2 penetrates through the middle part of the switch wrench buckle 1 and penetrates into a specific product such as a machine body mounting hole of a pneumatic wrench, and is used for realizing the fixed-shaft hinge joint of the switch wrench buckle 1 in a machine body 01 of the pneumatic wrench. The switch buckle 1 is divided into two parts by taking the fixing pin 2 as a boundary, wherein one part is positioned outside the machine body 01 of the pneumatic wrench and can be regarded as a user pressing end, and the other part is positioned inside the machine body 01 of the pneumatic wrench and can be regarded as a wrench driving end. The spanner drive end and the user press the end and use fixed pin 2 to form lever structure as the fulcrum, consequently, the user can press the motion that the end applied effort controlled the spanner drive end to the user to utilize the spanner drive end to drive the inside transmission structure motion of air wrench, realize opening and closing of air wrench.
In order to avoid frequent pressing of the switch trigger 1 to loosen the fixing pin 2 under stress, the operating switch provided by the utility model utilizes the limiting piece 3 to restrict the installation position of the fixing pin 2 in the machine body 01.
The limiting piece 3 penetrates into the machine body 01 and is in interference fit with the machine body 01, and tight assembly of the limiting piece and the machine body is achieved. The direction of the limiting piece 3 penetrating into the machine body 01 and the axial direction of the fixing pin 2 can be distributed in parallel, and can also intersect or even be mutually perpendicular.
In this operating switch, the stopper 3 is disposed adjacent to the fixing pin 2, and the end of the stopper 3 abuts against the end of the fixing pin 2. For example, when the direction of the limiting member 3 penetrating into the body 01 is parallel to the axial direction of the fixing pin 2, the limiting member 3 has a structure extending to a radial protrusion of the fixing pin 2, and the structure can be pressed against the end of the fixing pin 2. For example, when the direction in which the stopper 3 is inserted into the body 01 intersects the axial direction of the fixing pin 2 at an acute angle, the end of the stopper 3 abuts against the end of the fixing pin 2, and the stopper 3 is located outside the fixing pin 2 as viewed in the inward-outward direction of the body 01, so that the stopper 3 presses the fixing pin 2 toward the inside of the body 01.
In the operating switch, the fixing pin 2 and the stopper 3 are both in shaft hole fit relation with the body 01, and therefore, the fixing pin 2 is separated from the body 01 by moving the fixing pin 2 outward from the body 01 along the axial direction of the fixing pin 2, and the fixing pin 2 applies an acting force to the stopper 3 when moving outward from the body 01. Since the acting point of the acting force is located at one radial side of the limiting member 3, the limiting member 3 which is originally just assembled in the body 01 will deflect, and the limiting member 3 is "locked" in the body 01. In other words, the stopper 3 is less likely to separate from the body 01 as the stopper 3 is deflected at a larger angle in the body 01 as the amount of displacement of the fixing pin 2 to the outside of the body 01 increases.
Therefore, the operating switch provided by the utility model restricts the installation position of the fixing pin 2 in the machine body 01 by additionally arranging the limiting piece 3, and the fixing pin 2 is prevented from loosening and falling off due to frequent action of the switch trigger 1, so that the installation position of the operating switch in the machine body 01 is effectively maintained, and the service lives of the operating switch and related products are prolonged.
When the fixing pin needs to be replaced, an operator can apply an acting force to the limiting member 3 from the outside of the body 01 to deflect the limiting member 3 and restore the initial state, and then a tool is used to gradually take out the limiting member 3 and the fixing pin 2 from the inside of the body 01.
The operation switch provided by the present invention will be further described with reference to the accompanying drawings and embodiments.
In order to apply acting force to the fixing pin 2 better by using the limiting piece 3, in the operating switch, the limiting piece comprises a rod body which is tightly matched in the machine body 01 and a cap which is arranged at the end part of the rod body; the inner end surface of the cap is attached to the axial end surface of the fixing pin 2, so that the inner end surface which is relatively flat is used for applying acting force to the end part of the fixing pin 2.
In the above structure, the cap has a size larger than that of the shaft as viewed in a radial direction of the shaft. The cap and the rod body can be coaxially distributed or not. Wherein, when the rod body and the cap are coaxial, the shape of the rod body is similar to a mushroom shape.
As for the stopper having the rod body and the cap, the end of the fixing pin 2 may be pressed only by the cap, or the end of the fixing pin 2 may be pressed by both the cap and the circumferential side surface of the rod body.
In general, in order to optimize the layout of the fixing pin 2 and the stopper 3 in the body 01 and simplify the processing and operation of the body 01, the rod body of the stopper 3 is installed in the body 01 at an angle parallel to the axial direction of the fixing pin 2, and then the stopper 3 presses the fixing pin 2 only with the cap.
In order to further simplify the characteristic of assembling and disassembling the operation switch and the body 01, the rod body of the limiting member 3 may be specifically configured as a polish rod, and the polish rod and the body 01 are fixedly connected by interference fit. Compared with other connection modes such as threads, the polished rod can meet the limiting and restraining effects of the limiting parts 3 on the fixing pins 2, the installation angle of the polished rod in the machine body 01 can be adjusted conveniently when the fixing pins 2 are replaced, and the polished rod and the machine body 01 can be quickly detached and reconnected.
In order to better exert the limiting effect of the limiting part 3 on the fixing pin 2, in the operating switch, the inner end surface of the cap comprises a fixing pin pressing surface and a limiting pressing surface. The fixed pin pressing surface is used for abutting against the end part of the fixed pin 2, and the limiting pressing surface is used for abutting against a limiting step surface in the machine body 01.
Wherein, if the interior terminal surface of cap is the plane, then 2 holding surfaces of aforementioned fixed pin and spacing holding surfaces are in the coplanar, if the interior terminal surface of cap is the curved surface, then 2 holding surfaces of aforementioned fixed pin and spacing holding surfaces are in same curved surface, no matter specifically which kind of circumstances, the two body of rod that uses locating part 3 of fixed pin holding surface and spacing holding surface is symmetrical distribution as the center of symmetry.
When the fixing pin pressing surface of the cap is attached to the end surface of the fixing pin 2 and the limiting pressing surface is attached to the limiting step surface of the machine body 01, the matching relation between the limiting step surface and the limiting pressing surface is favorable for improving the stress characteristic of the limiting part 3, and the structural connection and the fixed connection strength of the limiting part 3 in the machine body 01 are improved.
In order to facilitate a user to use a product equipped with the operating switch, the limiting member 3 may specifically adopt a countersunk fastener, such as a flat-head cylindrical pin. The outer end of the countersunk head fastener, namely one end of the countersunk head fastener close to the outer side of the machine body 01, sinks into the machine body 01 of a product, and the user is prevented from being scratched. For the aforementioned outboard end, the countersunk head fastener also has another end, i.e., an inboard end, that is closer to the inboard side of the fuselage 01.
In order to achieve better technical effects, the inner end of the limiting member 3 is installed in the body 01 at an angle separated from the switch trigger 1, that is, the inner end does not contact the switch trigger 1, so as to avoid affecting the fixed-axis hinge relationship of the switch trigger 1 in the body 01.
In the above-mentioned embodiments, the limiting members 3 are mounted at the axial ends of the fixing pins 2, so that, for a single fixing pin 2 in a specific product, one limiting member 3 may be used to press one axial end of the fixing pin 2, and two limiting members 3 may be used to press both axial ends of the fixing pin 2.
Taking the pneumatic wrench as an example, the diameters of the two axial ends of the mounting hole in the pneumatic wrench are not equal, or the diameter of the first end of the two axial ends of the mounting hole is not equal to the diameter of the second end, for example, the mounting hole is in a stepped shaft shape. For the stepped shaft-shaped mounting hole, the fixing pin 2 can only penetrate and penetrate through the first end with the larger diameter of the mounting hole, and cannot penetrate and penetrate through the second end with the smaller diameter of the mounting hole. Therefore, when the operating switch is applied to the pneumatic wrench with the structural characteristics and the assembling characteristics, only one limiting piece 3 can be used for restraining the installation displacement of the fixing pin 2 in the machine body 01, and the limiting piece 3 compresses and positions the fixing pin 2 at the first end with the larger diameter of the installation hole.
Since the fixing pin 2 can be disengaged from the mounting hole only from one of the axial ends of the mounting hole, the local fixing pin 2 that is engaged with the larger diameter end of the mounting hole is regarded as the disengaging end of the fixing pin 2, that is, the stopper 3 is provided only at the disengaging end of the fixing pin 2 in the operation switch.
Aiming at the operation switch mentioned above, the utility model also provides a pneumatic wrench, which comprises a machine body 01 and an operation switch arranged on the machine body 01.
Wherein, the operating switch can be arranged at the handle part of the machine body 01, thereby being convenient for the user to operate.
The pneumatic wrench and the operating switch provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. An operation switch, characterized by comprising:
a switch trigger (1);
a fixing pin (2) for penetrating into the mounting hole of the machine body (01); the fixing pin (2) penetrates through the middle part of the switch pull buckle (1) to realize the fixed shaft hinge joint of the switch pull buckle (1) and the machine body (01);
the limiting piece (3) is used for penetrating into the machine body (01) at an angle parallel to or intersected with the fixing pin (2) and is tightly matched with the machine body; the end part of the limiting part (3) is pressed against the end part of the fixing pin (2).
2. The operating switch according to claim 1, wherein the stopper (3) comprises a rod body and a cap provided at an end of the rod body; the cap extends towards any radial bulge of the rod body; the inner end face of the cap presses the end of the fixing pin (2).
3. Operating switch according to claim 2, characterised in that the rod body is parallel to the fixing pin (2).
4. The operating switch of claim 2, wherein the lever body is a polished rod.
5. The operating switch according to claim 2, wherein the inner end surface of the cap includes a fixing pin pressing surface for pressing against an end of the fixing pin (2) and a limit pressing surface for pressing against a limit step surface in the body (01).
6. Operating switch according to claim 1, characterised in that the limit stop (3) is embodied as a countersunk head fastener.
7. The operating switch according to claim 1, wherein the inner end of the limiting member (3) is separated from the switch trigger (1).
8. Operating switch according to one of claims 1 to 7, characterized in that the fixing pin (2) comprises a release end for engaging with a second end shaft bore of a mounting bore, which mounting bore comprises a first end with a larger radial dimension and a second end with a smaller radial dimension; the limiting piece (3) is pressed against the release end.
9. A pneumatic wrench, comprising a body (01) and an operating switch according to any one of claims 1 to 8 provided on the body (01).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122575773.0U CN216030483U (en) | 2021-10-25 | 2021-10-25 | Pneumatic wrench and operating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122575773.0U CN216030483U (en) | 2021-10-25 | 2021-10-25 | Pneumatic wrench and operating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216030483U true CN216030483U (en) | 2022-03-15 |
Family
ID=80550091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122575773.0U Active CN216030483U (en) | 2021-10-25 | 2021-10-25 | Pneumatic wrench and operating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216030483U (en) |
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2021
- 2021-10-25 CN CN202122575773.0U patent/CN216030483U/en active Active
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
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Address after: No.98, dongtaihe Road, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Taitian Group Co.,Ltd. Address before: 317700 No. 98, dongtaihe Road, Jiaojiang District, Taizhou City, Zhejiang Province Patentee before: TAITIAN GROUP CO.,LTD. |