Damper

Abstract

The utility model discloses a damper which comprises an outer shell and a damping push rod piece extending into the outer shell. The damping push rod piece comprises a push rod outer end and a push rod inner end, the push rod outer end is located outside the shell, and the push rod inner end is located inside the shell; the damping push rod piece is connected with a buffering piece, the buffering piece is arranged in the outer shell and comprises a free end, the damping push rod piece is connected with the buffering piece, the buffering piece is arranged in the outer shell and comprises a free end, a containing cavity is formed in the outer shell, and the free end can slide back and forth in the direction from the inner end of the push rod to the outer end of the push rod. And the free end is propped against the side wall of the accommodating cavity in a sliding manner. The sliding groove is changed into a progressive structure to be matched with the buffering piece arranged in the sliding groove, and meanwhile the buffering piece is connected to the damping push rod piece, so that when the buffering piece moves in the sliding groove, the resistance is increased, the speed is reduced, safety is guaranteed, and the damage risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a damper. Background Art

[0002] A damper, also known as a shock absorber, is a device that uses damping properties to mitigate mechanical vibration and dissipate kinetic energy. Dampers are used in a wide range of fields, including automobiles, motorcycles, construction, machinery, and furniture. In the furniture industry, dampers are generally used to prevent impacts during movement, which can cause damage and noise due to excessive impact. To ensure the damper's mechanical structure returns to its original position, an elastic component is typically incorporated into the damper to generate a directional force. However, a strong reverse force can pose certain safety risks, such as injury. Therefore, a more optimal approach is to further mitigate the reverse force to avoid safety risks. Existing technology, such as the Chinese patent application number: 201710906901.0; Patent Title: Push-to-Open Door Device with Damping and Method for Implementing Push-to-Open Door Anti-Collision, employs a linear damping mechanism to cushion the impact force of the push rod under the action of a spring. This structural design is more complex and more fragile. Summary of the Invention

[0003] In view of the above problems, an object of the present invention is to provide a damper.

[0004] A damper comprises an outer shell and a damping push rod extending into the outer shell;

[0005] The damping push rod member includes a push rod outer end and a push rod inner end, wherein the push rod outer end is located outside the housing, and the push rod inner end is located inside the housing;

[0006] A buffer component is connected to the damping push rod component, and the buffer component is arranged inside the outer shell. The buffer component includes a free end. A accommodating cavity is formed in the outer shell. The side wall spacing of the accommodating cavity gradually decreases along the direction from the inner end of the push rod to the outer end of the push rod. The free end can slide back and forth along the direction from the inner end of the push rod to the outer end of the push rod, and the free end can slidably abut against the side wall of the accommodating cavity.

[0007] In some preferred embodiments, a slide groove is provided on the inner wall of the outer shell, and the space inside the slide groove is the accommodating cavity. The free end extends into the slide groove to slide back and forth along the slide groove. The slide groove includes a first groove end and a second groove end. The first groove end is close to the outer end of the push rod, and the second groove end is close to the inner end of the push rod; from the second groove end to the first groove end, the cross-sectional area of ​​the slide groove gradually decreases.

[0008] In some preferred embodiments, the chute includes a bottom surface, and a first side surface and a second side surface that are opposite to each other;

[0009] The first groove end and the second groove end are arranged in the Z-axis direction, the first side surface and the second side surface are arranged in the Y-axis direction, the free end is extended in the X-axis direction of the slide groove, and the bottom surface is inclined toward the negative direction of the X-axis during the extension process toward the Z-axis, so that the cross-sectional area of ​​the slide groove gradually decreases.

[0010] In some preferred embodiments, the shapes of the first side surface, the second side surface and the bottom surface include curved surfaces, flat surfaces and a combination of curved surfaces and flat surfaces.

[0011] In some preferred embodiments, the damping push rod member includes a plurality of separate components, and the plurality of separate components are connected to form the damping push rod member as a whole.

[0012] In some preferred embodiments, the damping push rod member includes a main rod body and a connecting member connected to each other, the outer end of the push rod is located on the main rod body, and the buffer member is arranged on the connecting member.

[0013] In some preferred embodiments, the damping push rod also includes an elastic member and a mounting seat, the inner end of the push rod is located on the mounting seat, one end of the elastic member is connected to the connecting member, and the other end is connected to the mounting seat, so that the elastic force of the elastic member pushes the main rod body and the connecting member to move.

[0014] In some preferred embodiments, there are two slide grooves, and the two slide grooves are relatively arranged on the inner wall of the outer shell, and both ends of the buffer member serve as the free ends and extend out of the connecting member to correspond to the two slide grooves.

[0015] In some preferred embodiments, the elastic member is a spring.

[0016] In some preferred embodiments, the buffer component is a telescopic cylinder, which includes a cylinder shell and a telescopic key disposed in the cylinder shell, and the free end is located at the telescopic key.

[0017] Beneficial effect: The utility model changes the slide groove into a progressive structure to match the buffer member set in the slide groove, and the buffer member is connected to the damping push rod member, so that the resistance of the buffer member is increased and the speed is reduced when it moves in the slide groove, thereby ensuring safety and reducing the risk of injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of an embodiment of the present utility model.

[0019] Figure 2It is a schematic diagram of the explosion structure of an embodiment of the utility model.

[0020] Figure 3 It is a comparative schematic diagram of the cross-sectional sizes of the chute in one embodiment of the present utility model.

[0021] Figure 4 It is a schematic diagram of the arrangement structure of two chutes in one embodiment of the utility model.

[0022] Figure 5 It is a schematic structural diagram of an embodiment of the present invention in which the bottom surface of the chute is inclined.

[0023] Figure 6 It is a schematic diagram of the structural relationship between the accommodating cavity and the side wall in one embodiment of the utility model. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] refer to Figure 1-6 As shown, a damper includes an outer shell 100 and a damping push rod 200 extending into the outer shell 100. During use, an external force acts on the damping push rod 200, pushing the damping push rod 200 into the outer shell 100. Under the reverse force in the outer shell 100, the damping push rod 200 is pushed outward in the opposite direction, thereby achieving a damping effect.

[0026] like Figure 2 As shown, the damping push rod member 200 includes a push rod outer end 201 and a push rod inner end 202 . The push rod outer end 201 is located outside the housing 100 , and the push rod inner end 202 is located inside the housing 100 .

[0027] like Figure 2 As shown, the damping push rod 200 is connected to a buffer member 300 . The buffer member 300 is disposed inside the outer shell 100 , and the buffer member 300 includes a free end 301 .

[0028] refer to Figure 6 As shown, an accommodating cavity 101 is formed in the outer shell 100, and the spacing between the side walls 102 of the accommodating cavity 101 gradually decreases along the direction from the inner end 202 of the push rod to the outer end 201 of the push rod, and the free end 301 can slide back and forth along the direction from the inner end 202 of the push rod to the outer end 201 of the push rod, and the free end 301 can slidably contact the side walls 102 of the accommodating cavity 101.

[0029] In some preferred embodiments, reference Figure 6 As shown, the side wall 102 is the inner wall of the outer shell 100 .

[0030] In some preferred embodiments, one of the two opposite side walls 102 is arranged parallel to the center line of the accommodating cavity 101 , and the other is arranged obliquely to the center line of the accommodating cavity 101 .

[0031] In some preferred embodiments, reference Figure 6 As shown, the two opposite side walls 102 are both arranged to be inclined with respect to the center line of the accommodating cavity 101 .

[0032] In some preferred embodiments, the inner wall of the outer shell 100 is provided with a slide groove 110, and the space within the slide groove 110 constitutes the accommodating chamber 101. The free end 301 extends into the slide groove 110 to slide back and forth along the slide groove 110. During use, the free end 301 of the buffer 300 interacts with the inner wall of the slide groove 110, thereby controlling the movement speed of the free end 301 through the friction between the free end 301 and the slide groove 110.

[0033] The structure of the chute 110 is as follows Figure 3-5 As shown, the chute 110 includes a first chute end 111 and a second chute end 112. The first chute end 111 is close to the outer end 201 of the push rod, and the second chute end 112 is close to the inner end 202 of the push rod. From the second chute end 112 to the first chute end 111, the cross-sectional area of ​​the chute 110 gradually decreases. Figure 3 As shown, from the second groove end 112 to the first groove end 111, the space in the slide groove 110 gradually decreases, which is manifested as a gradual decrease in the cross-sectional area of ​​the corresponding position, so that the pressure generated by the contact between the free end 301 and the inner wall of the slide groove 110 becomes greater and greater, and then the friction force becomes greater and greater, so as to reduce the speed of the entire damping push rod member 200 moving toward the push rod outer end 201, thereby reducing its impact force and being safer. Figure 3 In the three figures a, b and c, the positions are respectively from the second slot end 112 to the first slot end 111.

[0034] In some preferred embodiments, Figure 5 As shown, the chute 110 includes a bottom surface 105, and a first side surface 103 and a second side surface 104 positioned opposite each other. The bottom surface 105 serves as the side wall 102. The first chute end 111 and the second chute end 112 are arranged in the Z-axis direction, the first side surface 103 and the second side surface 104 are arranged in the Y-axis direction, and the free end 301 extends in the X-axis direction in the chute 110. During the extension process in the Z-axis direction, the bottom surface 105 tilts toward the negative direction of the X-axis, so that the cross-sectional area of ​​the chute 110 gradually decreases. Figure 5 As shown, in a specific implementation, the chute 110 is tilted to be closer to the edge of the chute 110 to achieve the above-mentioned gradual reduction of the space in the chute 110 from the second chute end 112 to the first chute end 111.

[0035] In some preferred embodiments, the shapes of the first side surface 103, the second side surface 104, and the bottom surface 105 include curved surfaces, flat surfaces, and a combination of curved and flat surfaces. The different shapes of the first side surface 103, the second side surface 104, and the bottom surface 105 can all satisfy the aforementioned requirement that the space within the chute 110 gradually decreases from the second chute end 112 to the first chute end 111.

[0036] In some preferred embodiments, the damping push rod 200 includes multiple separate components, and the multiple separate components are connected to form the entire damping push rod 200. This structural form has the beneficial effect of facilitating disassembly, installation, repair, replacement and maintenance.

[0037] In some preferred embodiments, Figure 2 As shown, the damping push rod 200 includes a main rod body 203 and a connecting member 204 connected to each other, the push rod outer end 201 is located on the main rod body 203, and the buffer member 300 is provided on the connecting member 204. The connecting member 204 is detachably connected to the main rod body 203.

[0038] In some preferred embodiments, Figure 2 As shown, the damping push rod 200 further includes an elastic member 205 and a mounting seat 206. The push rod inner end 202 is located on the mounting seat 206. One end of the elastic member 205 is connected to the connecting member 204, and the other end is connected to the mounting seat 206. The elastic force of the elastic member 205 pushes the main rod body 203 and the connecting member 204 to move. The elastic member 205 provides thrust to the main rod body 203. The mounting seat 206 is provided to stably position the elastic member 205.

[0039] In some preferred embodiments, Figure 4 As shown, there are two slide grooves 110, and the two slide grooves 110 are positioned opposite to each other on the inner wall of the outer shell 100. Both ends of the buffer 300 serve as free ends 301 and extend out of the connecting member 204 to correspond to the two slide grooves 110. By providing two slide grooves 110, the buffer 300 can be stably arranged.

[0040] In some preferred embodiments, there are more than two slide slots 110, and each slide slot 110 is provided with a corresponding free end 301 of a buffer member 300. In some preferred embodiments, the elastic member 205 is a spring. The spring provides elastic force and can be a coil spring, a gas spring, a disc spring, or the like.

[0041] In some preferred embodiments, the buffer member 300 is a telescopic cylinder comprising a cylinder housing and a telescopic key disposed within the cylinder housing, with the free end 301 located at the telescopic key. In specific implementations, the telescopic cylinder is one or more of a hydraulic, pneumatic, and spring-loaded cylinder. A spring-loaded cylinder, i.e., a telescopic key, utilizes a spring to provide elastic force during movement.

[0042] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solution that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A damper, characterized in that: It comprises an outer shell (100) and a damping push rod (200) extending into the outer shell (100); The damping push rod member (200) comprises a push rod outer end (201) and a push rod inner end (202), wherein the push rod outer end (201) is located outside the housing (100), and the push rod inner end (202) is located inside the housing (100); The damping push rod member (200) is connected to a buffer member (300), the buffer member (300) is arranged inside the outer shell (100), and the buffer member (300) includes a free end (301), and a housing cavity (101) is formed inside the outer shell (100), and the spacing between the side walls (102) of the housing cavity (101) gradually decreases along the direction from the inner end (202) of the push rod to the outer end (201) of the push rod, and the free end (301) can slide back and forth along the direction from the inner end (202) of the push rod to the outer end (201) of the push rod, and the free end (301) can slidably contact the side walls (102) of the housing cavity (101).

2. A damper according to claim 1, characterized in that: The inner wall of the outer shell (100) is provided with a slide groove (110), and the space inside the slide groove (110) is the accommodating chamber (101). The free end (301) extends into the slide groove (110) to slide back and forth along the slide groove (110). The slide groove (110) includes a first groove end (111) and a second groove end (112). The first groove end (111) is close to the outer end (201) of the push rod, and the second groove end (112) is close to the inner end (202) of the push rod. From the second groove end (112) toward the first groove end (111), the cross-sectional area of ​​the slide groove (110) gradually decreases.

3. A damper according to claim 2, characterized in that: The chute (110) includes a bottom surface (105), and a first side surface (103) and a second side surface (104) that are positioned opposite to each other; The first groove end (111) and the second groove end (112) are arranged in the Z-axis direction, the first side surface (103) and the second side surface (104) are arranged in the Y-axis direction, the free end (301) extends in the X-axis direction in the slide groove (110), and the bottom surface (105) is inclined in the negative direction of the X-axis during the process of extending in the Z-axis direction, so that the cross-sectional area of ​​the slide groove (110) gradually decreases.

4. A damper according to claim 3, characterized in that: The shapes of the first side surface (103), the second side surface (104) and the bottom surface (105) include a curved surface, a flat surface and a combination of a curved surface and a flat surface.

5. A damper according to claim 1, characterized in that: The damping push rod member (200) comprises a plurality of separate parts, and the plurality of separate parts are connected to form the damping push rod member (200) as a whole.

6. A damper according to claim 5, characterized in that: The damping push rod member (200) comprises a main rod body (203) and a connecting member (204) connected to each other, the push rod outer end (201) is located on the main rod body (203), and the buffer member (300) is arranged on the connecting member (204).

7. A damper according to claim 6, characterized in that: The damping push rod member (200) further comprises an elastic member (205) and a mounting seat (206), wherein the push rod inner end (202) is located on the mounting seat (206), one end of the elastic member (205) is connected to the connecting member (204), and the other end is connected to the mounting seat (206), so that the elastic force of the elastic member (205) pushes the main rod body (203) and the connecting member (204) to move.

8. A damper according to claim 6, characterized in that: There are two slide grooves (110), and the two slide grooves (110) are relatively arranged on the inner wall of the outer shell (100). Both ends of the buffer member (300) serve as the free ends (301) and extend out of the connecting member (204) to correspond to the two slide grooves (110).

9. A damper according to claim 7, characterized in that: The elastic member (205) is a spring.

10. A damper according to claim 1, characterized in that: The buffer member (300) is a telescopic cylinder, comprising a cylinder shell and a telescopic key disposed in the cylinder shell, and the free end (301) is located on the telescopic key.

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