punches

Abstract

The application relates to the technical field of impact tools, in particular to a punch. The punch comprises a punch body, a movable sleeve and a handle. The punch body comprises an impact part and a force receiving part, the force receiving part is used for receiving external impact force, the impact part is used for applying impact force to the outside, the movable sleeve is sleeved on the punch body, the movable sleeve can move along the axial direction of the punch body, and the impact part and the force receiving part are respectively located at two ends of the movable sleeve; the handle is connected with the movable sleeve. The punch can move along the axial direction of the punch body through the movable sleeve. When the force receiving part of the punch receives impact force, the reaction force received by the punch is transmitted along the axial direction of the punch, the movable sleeve moves along the axial direction of the punch, the reaction force received by the handle is reduced, the impact force on an operator operating the punch during the working process of the punch is reduced, the operator can not feel pain under the impact force, and the safety of the operator is improved.

Description

Technical Field

[0001] This application relates to the field of impact tool technology, and in particular to punches. Background Technology

[0002] When railway workers replace rails, multiple workers are needed to work together to dismantle and install equipotential bonding lines. During the dismantling of equipotential bonding lines, three workers usually cooperate: one holds a punch, one provides safety protection, and one operates a hammer. The hammer strikes the punch, and the impact force from the hammer is then transferred to the end of the equipotential bonding line, which is then removed from the rail under the impact force of the punch.

[0003] In related technologies, a punch includes a punch body and a handle connected in a T-shape, with a sponge wrapped around the handle to cushion the impact of the punch body on the operator.

[0004] However, the sponge has limited cushioning for impact, causing the impact force generated by the vertical strike of the punch to be transmitted to the worker, which may cause pain or even personal injury. Utility Model Content

[0005] Therefore, it is necessary to provide a punch that addresses the problem that the limited cushioning of sponge against impact causes the impact force transmitted from vertical impacts to workers, resulting in pain or even personal injury.

[0006] A punch, comprising:

[0007] The punch body includes an impact part and a force-receiving part, wherein the force-receiving part is used to receive external impact force and the impact part is used to apply impact force to the outside.

[0008] A movable sleeve is fitted onto the punch body, and the movable sleeve can move along the axial direction of the punch body. The impact part and the force-bearing part are located at the two ends of the movable sleeve, respectively.

[0009] The handle is connected to the movable sleeve.

[0010] This punch, via a movable sleeve, can move axially along the punch body. When the punch body is subjected to impact, the reaction force is transmitted axially along the punch body. The movable sleeve moves axially along the punch body to reduce the reaction force on the handle, thereby reducing the impact force on the operator during operation and preventing pain, thus improving operator safety. Simultaneously, the movable sleeve buffers the impact force, avoiding the breakage problem caused by direct connection between the punch body and handle in related technologies. This design extends the punch's service life and reduces maintenance cycles.

[0011] In one embodiment, the movable sleeve and the punch body are fitted with a clearance, which helps to further reduce the reaction force of the punch body on the movable sleeve when it is impacted, thereby reducing the reaction force on the handle, or even eliminating the impact of the punch body on the handle, thereby improving the safety of the operator when operating the punch.

[0012] In one embodiment, the punch further includes:

[0013] A first stop is sleeved on the force-bearing part, and the first stop is configured to prevent the movable sleeve from falling off the force-bearing part.

[0014] The first stop helps improve the safety and stability of the movable sleeve protecting the operator and prevents the movable sleeve from falling off the punch body through the force-bearing end.

[0015] In one embodiment, the first stop is disposed at the end of the force-bearing part away from the impact part, so that the first stop can also increase the force-bearing area at one end of the force-bearing part and improve the accuracy of the operator of the hammer in striking the impact body.

[0016] In one embodiment, the outer diameter of the first stop is larger than the inner diameter of the movable sleeve, which helps to ensure the stability of the first stop in blocking the movable sleeve and prevent the movable sleeve from falling off.

[0017] In one embodiment, the punch further includes a connecting portion connecting the impact portion and the force-receiving portion, and the punch further includes:

[0018] The second stop is sleeved on the connecting part. The second stop is located at the end of the movable sleeve away from the force-bearing part. The distance between the second stop and the first stop is greater than the length of the movable sleeve, so that the movable sleeve has a space for movement between the first stop and the second stop to buffer the impact force of the punch and reduce the transmission of the impact force to the handle.

[0019] In one embodiment, the first stop and the second stop are welded together to improve the structural strength of the connection between the first stop and the second stop and the punch.

[0020] In one embodiment, the movable sleeve is welded to the handle to improve structural strength and prevent breakage during use.

[0021] In one embodiment, the punch is a tubular structure, which helps to utilize the internal space of the punch to buffer the impact force and protect the operator.

[0022] In one embodiment, the handle includes:

[0023] ontology;

[0024] A buffer sleeve is fitted onto the main body, and the buffer sleeve is positioned near the end of the main body away from the movable sleeve.

[0025] The cushioning sleeve makes it easier for workers to hold the hand while also reducing impact. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a punch provided in one embodiment of this application. Figure 1 .

[0027] Figure 2 This is a partial cross-sectional structural diagram of a punch provided in one embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the structure of a punch provided in one embodiment of this application. Figure 2 .

[0029] Explanation of reference numerals in the attached figures:

[0030] 100 - Impact body; 110 - Force-bearing part; 120 - Impact part; 130 - Connecting part;

[0031] 200-Event Set;

[0032] 300 - Handle; 310 - Body; 320 - Buffer sleeve;

[0033] 400 - First stop section;

[0034] 500 - Second stop section. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] See Figure 1 , Figure 1 A schematic diagram of the punch provided in one embodiment of this application is shown.

[0042] like Figure 1 As shown, this embodiment provides a punch, which includes a punch body 100, a movable sleeve 200, and a handle 300. The punch body 100 includes an impact part 120 and a force-receiving part 110. The force-receiving part 110 is used to receive external impact force, and the impact part 120 is used to apply impact force to the outside. The movable sleeve 200 is sleeved on the punch body 100 and can move along the axial direction of the punch body 100. The impact part 120 and the force-receiving part 110 are respectively located at both ends of the movable sleeve 200. The handle 300 is connected to the movable sleeve 200.

[0043] The punch can move axially along the punch body 100 via the movable sleeve 200. When the force-bearing part 110 of the punch body 100 is subjected to impact, the reaction force received by the punch body 100 is transmitted axially along the punch body 100. The movable sleeve 200 moves axially along the punch body 100 to reduce the reaction force received by the handle 300, thereby reducing the impact force on the operator during operation and preventing pain from the impact, thus improving operator safety. Simultaneously, the movable sleeve 200 buffers the impact force, avoiding the problem of easy breakage caused by the direct connection between the punch body 100 and the handle 300 in related technologies. This punch helps to extend its service life and reduce maintenance cycles.

[0044] During operation, the impact part 120 is first positioned in the ready-to-operate position, and then the operator uses a hammer or other tools to strike the force-bearing part 110. When the punch body 100 is subjected to force, the movable sleeve 200 will not be subjected to impact force due to inertia, thus relieving the force on the handle 300, which helps to extend the service life of the punch, while reducing the impact force on the operator and minimizing the injury to the operator.

[0045] Furthermore, the clearance fit between the movable sleeve 200 and the punch body 100 helps to further reduce the reaction force of the punch body 100 on the movable sleeve 200 when it is impacted, thereby reducing the reaction force on the handle 300, or even eliminating the impact of the punch body 100 on the handle 300, thus improving the safety of operators when operating the punch.

[0046] Optionally, the movable sleeve 200 is connected to the punch body 100 at a right angle to facilitate operation by the operator.

[0047] Optionally, the impact part 120 is a cone, and the diameter of the impact part 120 gradually decreases along the direction away from the force-bearing part 110, so that the distal end of the impact part 120 can be used to accurately act on the end of the line of the equal resistance line, which is beneficial to improving the accuracy of the operation.

[0048] Furthermore, the punch 100 also includes a connecting part 130, which is connected between the impact part 120 and the force-receiving part 110, and the movable sleeve 200 is fitted onto the connecting part 130.

[0049] like Figure 2 As shown, the force-bearing part 110, the impact part 120 and the connecting part 130 are integrated into one structure, which is beneficial to improving the overall structural strength of the punch body 100.

[0050] Optionally, the punch body 100 has a tubular overall structure. The punch body 100 can be made of a steel pipe with a length of 130mm-170mm and an outer diameter of 15mm-21mm, such as a length of 150mm and an outer diameter of 18mm. One end of its impact section 120 is machined to form a bevel, with the bevel extending 50mm-70mm along the axial direction of the punch body 100. The minimum inner diameter is 6mm-10mm, such as a length of 60mm and a minimum inner diameter of 8mm, thus ensuring the impact effect and structural strength of the impact section 120. During operation, the force-bearing part 110 of the punch body 100 receives external forces, such as the impact force of a hammer. This external force is transmitted through the connecting part 130 to the head of the impact section 120, which then transmits the impact force to the equal-resistance line to remove the equal-resistance line from the rail.

[0051] The movable sleeve 200 is a tubular structure. It can be made of a tube with an inner diameter of 16mm-22mm, a wall thickness of 2mm-4mm, and a length of 40mm-60mm, for example, an inner diameter of 19mm, a wall thickness of 3mm, and a length of 50mm. A 1mm diameter difference is maintained between the movable sleeve 200 and the punch 100. This gap reduces the force transmission from the punch 100 to the movable sleeve 200.

[0052] In one embodiment, the punch further includes a first stop 400, sleeved on the force-bearing part 110, configured to prevent the movable sleeve 200 from detaching from the force-bearing part 110. The first stop 400 helps improve the safety and stability of the movable sleeve 200 in protecting the operator, and prevents the movable sleeve from detaching from the punch body 100 through one end of the force-bearing part 110.

[0053] Specifically, the outer diameter of the first stop 400 is larger than the inner diameter of the movable sleeve 200, which helps to ensure the stability of the first stop 400 in blocking the movable sleeve 200 and prevent the movable sleeve 200 from falling off.

[0054] The first stop 400 is located at the end of the force-bearing part 110 away from the impact part 120, so that the first stop 400 can also increase the force-bearing area at one end of the force-bearing part 110, thereby improving the accuracy of the operator of the hammer in striking the impact body 100.

[0055] For example, the first stop 400 is a tube with an inner diameter of 16mm-22mm, a wall thickness of 2mm-4mm, and a length of 6mm-10mm. For example, the inner diameter of the first stop 400 is 19mm, the wall thickness is 3mm, and the length is 8mm. The first stop 400 is fixed to the force-bearing part 110 to block the movable sleeve 200.

[0056] As an alternative, the punch also includes a second stop 500, which is sleeved on the connecting part 130. The second stop 500 is located at the end of the movable sleeve 200 away from the force-bearing part 110. The distance between the second stop 500 and the first stop 400 is greater than the length of the movable sleeve 200, so that the movable sleeve 200 has a movement space between the first stop 400 and the second stop 500 to buffer the impact force of the punch 100 and help reduce the transmission of the impact force to the handle 300.

[0057] For example, the second stop portion 500 is a tube with an inner diameter of 16mm-22mm, a wall thickness of 2mm-4mm, and a length of 6mm-10mm. For instance, the second stop portion 500 is a tube with an inner diameter of 19mm, a wall thickness of 3mm, and a length of 8mm. It is fixed between the impact portion 120 and the force-receiving portion 110 by the first stop portion 400 to block the movable sleeve 200.

[0058] Optionally, the distance between the second stop portion 500 and the end of the force-bearing portion 110 away from the impact portion 120 is 72mm, so as to ensure that the distance between the first stop portion 400 and the second stop portion 500 is much greater than the length of the movable sleeve 200, so as to ensure that the movable sleeve 200 has a reconfigurable movement distance for cushioning.

[0059] The first stop portion 400 and the second stop portion 500 are welded and fixed, thereby improving the structural strength of the connection between the first stop portion 400 and the second stop portion 500 and the punch body 100.

[0060] The movable sleeve 200 is welded and fixed to the handle 300 to improve structural strength and prevent breakage during use.

[0061] The punch body 100 has a tubular structure, which helps to utilize the internal space of the punch body 100 to buffer the impact force and protect the operator.

[0062] like Figure 3 As shown, in one embodiment, the handle 300 includes a body 310 and a buffer sleeve 320. The buffer sleeve 320 is fitted onto the body 310, and is positioned near the end of the body 310 away from the movable sleeve 200. The buffer sleeve 320 makes it easier for the operator to hold the handle while also reducing impact.

[0063] For example, the cushioning sleeve 320 is made of sponge, which is a common cushioning material and has low cost.

[0064] For example, the body 310 is a reinforcing bar, the length of the body 310 is 200mm-255mm, and the inner diameter is 4mm-8mm. For example, the length of the body 310 is 234mm and the inner diameter is 6mm.

[0065] Except for the 320 buffer sleeve, the punch is made of steel. The process is simple, easy to manufacture, and inexpensive.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A punch, characterized in that include: The punch body includes an impact part and a force-receiving part, wherein the force-receiving part is used to receive external impact force and the impact part is used to apply impact force to the outside. A movable sleeve is fitted onto the punch body, and the movable sleeve can move along the axial direction of the punch body. The impact part and the force-bearing part are located at the two ends of the movable sleeve, respectively. The handle is connected to the movable sleeve.

2. Punch according to claim 1, characterized in that The movable sleeve and the punch body are fitted with a clearance.

3. The punch of claim 1 wherein, The punch also includes: A first stop is sleeved on the force-bearing part, and the first stop is configured to prevent the movable sleeve from falling off the force-bearing part.

4. The punch of claim 3 wherein, The first stop portion is disposed at the end of the force-bearing portion away from the impact portion.

5. The punch of claim 3 wherein, The outer diameter of the first stop is larger than the inner diameter of the movable sleeve.

6. The punch according to claim 3, characterized in that, The punch further includes a connecting portion, which connects the impact portion and the force-receiving portion. The punch also includes: The second stop is sleeved on the connecting part. The second stop is located at the end of the movable sleeve away from the force-bearing part. The distance between the second stop and the first stop is greater than the length of the movable sleeve.

7. The punch according to claim 6, characterized in that, The first stop and the second stop are welded together.

8. The punch according to any one of claims 1-7, characterized in that, The movable sleeve is welded and fixed to the handle.

9. The punch according to any one of claims 1-7, characterized in that, The punch is a tubular structure.

10. The punch according to any one of claims 1-6, characterized in that, The handle includes: ontology; A buffer sleeve is fitted onto the main body, and the buffer sleeve is positioned near the end of the main body away from the movable sleeve.

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