Novel clamping type nut for data center cabinet

Abstract

The utility model discloses a novel clamping type nut for a data center cabinet, which comprises an elastic frame provided with two clamping arm parts and a connecting part connected with one ends of the two clamping arm parts, an accommodating cavity is formed in the elastic frame, and a clamping opening capable of accommodating a nut main body in the accommodating cavity is formed between the free ends of the two clamping arm parts; radial limiting pieces are arranged on the inner sides of the two clamping arm parts, and first wedge-shaped surfaces are arranged on the radial limiting pieces; a second wedge-shaped surface corresponding to the first wedge-shaped surface is arranged on the peripheral side of the nut main body; an elastic pressing piece is arranged on the inner side of the connecting part and abuts against one axial end of the nut body so that when the free ends of the two clamping arm parts are folded or unfolded, the first wedge-shaped face and the second wedge-shaped face can be kept attached to each other, and the nut body can axially move relative to the elastic frame. According to the utility model, the nut main body can be prevented from loosening relative to the elastic frame, so that a bolt can be quickly locked, and the mounting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of data center cabinet fastener, especially a new type of snap nut for data center cabinet. BACKGROUND

[0002] The cabinet of data center is generally provided with multiple installation stations to meet the installation of various electrical components, and multiple lock holes are arranged at the installation stations for the convenience of installation, and the snap nut is arranged in the corresponding lock hole according to the component to be installed, and the bolt is locked into the snap nut to complete the installation of the electrical component.

[0003] The snap nut fastener generally comprises an elastic frame and a nut body arranged in the elastic frame, and the elastic frame has a clamping opening and a lock catch arranged at the clamping opening; during installation, the elastic frame is squeezed on both sides to make the lock catch shrink and fit into the lock hole of the corresponding size; when the elastic frame is released, the lock catch is restored to be open under the elastic force of the elastic frame to lock the lock hole, and at this time, the bolt can be locked into the nut body to complete the fastening of the electrical component.

[0004] However, in the prior art, the snap nut is assembled in the lock hole, but the nut body is not limited, and the nut body is not fixedly connected with the elastic frame, so that the nut body is prone to loosening relative to the elastic frame, the threaded hole on the nut body cannot be aligned with the lock hole, and the position of the nut body needs to be adjusted manually using tools before the bolt is locked, thereby reducing the assembly efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a new type of snap nut for data center cabinet, which can avoid loosening of the nut body relative to the elastic body, so as to quickly lock the bolt and improve the assembly efficiency.

[0006] The utility model is achieved by the following technical scheme:

[0007] A new type of snap nut for data center cabinet, comprising an elastic frame having two clamping arm parts and a connecting part connecting one end of the two clamping arm parts, the elastic frame forms an accommodation cavity inside, and a clamping opening for accommodating the nut body in the accommodation cavity is formed between the free ends of the two clamping arm parts; the two clamping arm parts are provided with a radial limiting piece on the inner side, which can limit the nut body radially coaxial with the elastic frame, and the radial limiting piece is provided with a first wedge surface; the nut body is provided with a second wedge surface corresponding to the first wedge surface on the outer peripheral side; the connecting part is provided with an elastic pressing piece on the inner side, which abuts against one axial end of the nut body, so that when the free ends of the two clamping arm parts are closed or opened, the first wedge surface and the second wedge surface remain mutually adhered, and the nut body moves axially relative to the elastic frame.

[0008] On the basis of the above technical solutions, the utility model can be improved as follows:

[0009] Further, the radial limiting piece is a wedge-shaped block, the first wedge-shaped surface is arranged on the side opposite to the nut body, the first wedge-shaped surface is arranged as a thicker end of the wedge-shaped block on the side edge close to the clamping opening, and is arranged as a thinner end of the wedge-shaped block on the side edge away from the clamping opening.

[0010] Further, an included angle A is formed between the first wedge-shaped surface and the clamping arm part, and the included angle A ranges from 25° to 65°.

[0011] Further, the second wedge-shaped surface gradually inclines towards the direction close to the axis from the position close to the axial end face of the nut body to the other axial end face.

[0012] Further, the elastic pressing piece is a spiral spring, one end of the spiral spring is connected with the connecting part, and the other end of the spiral spring abuts against the axial end of the nut body; initially, the spiral spring is in an extended state.

[0013] Further, the elastic pressing piece is a pair of disc springs, the disc springs have a large opening end and a small opening end, the pair of disc springs are connected at the large opening end, the small opening end of one of the disc springs is connected with the connecting part, and the small opening end of the other disc spring abuts against the axial end face of the nut body.

[0014] Further, the two clamping arm parts are provided with a locking piece capable of cooperating with and locking a lock hole of a corresponding size at the free end, when the free ends of the two clamping arm parts are closed, the locking pieces are close to each other and are cooperated in the lock hole of a corresponding size, and when the free ends of the two clamping arm parts are opened, the locking pieces are away from each other to complete the locking of the lock hole.

[0015] Further, the locking piece is a lock hook, the lock hook comprises a connecting part, a transition part and a hook part connected in sequence, and the connecting part, the transition part and the hook part surround a clamping groove with a U-shaped cross section, so that the edge of the lock hole can be inserted to complete the locking.

[0016] Further, the transition parts of the lock hooks on the two clamping arm parts form a channel communicating with the clamping opening, so that the bolt can be inserted into the elastic frame to be threadedly connected with the nut body.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The utility model discloses a radial limiting piece is arranged on the clamping arm part of the elastic frame, and the first wedge surface is arranged on the radial limiting piece, and the second wedge surface is arranged on the outer circumferential side of the nut main body, and the elastic pressing piece is arranged on the connecting part, can carry out the radial limiting of nut main body to make the nut main body and the elastic frame coaxial, and when the free end of two clamping arm parts is gathered or opened, the first wedge surface and the second wedge surface can keep mutual adhesion, thereby avoiding that the nut main body is loose relative to the elastic frame, so as to lock into the bolt quickly, improve the installation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further explained in detail below in combination with the drawings and specific embodiments

[0020] Figure 1 It is the structural schematic diagram of new type card nut for data center rack in example one;

[0021] Figure 2 It is the structural schematic diagram of elastic frame in example one;

[0022] Figure 3 It is the structural schematic diagram of nut main body in example one;

[0023] Figure 4 It is the structural schematic diagram of new type card nut for data center rack in example two.

[0024] The mark on the drawing: 1-elastic frame, 101-clamping arm part, 102-connecting part, 2-nut main body, 201-first axial end face, 202-second axial end face, 203-second wedge surface, 3-lock hook, 301-connection part, 302-transition part, 303-hook part, 4-wedge block, 401-first wedge surface, 5-spiral spring, 6-disc spring, 7-baffle. DETAILED DESCRIPTION

[0025] The specific embodiment of the utility model is further explained below in combination with the drawings, and the explanation of these embodiments is used to help understanding the utility model, but does not constitute the limitation of the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] Example one

[0027] See Figures 1 to 3The embodiment relates to a novel clamping nut for a data center cabinet, which comprises an elastic frame 1 and a nut body 2 arranged in the elastic frame 1; the elastic frame 1 has two opposite clamping arm portions 101 and a connecting portion 102 connected to one end of the two clamping arm portions 101; the free ends of the two clamping arm portions 101 are away from the connecting portion 102 and can approach or move away from each other relative to the connecting portion 102; the free ends of the two clamping arm portions 101 form a clamping opening so as to facilitate mounting of the nut body 2 in the elastic frame 1, and a containing cavity for containing the nut body 2 is formed in the elastic frame 1; when the free ends of the two clamping arm portions 101 approach or move away from each other relative to the connecting portion 102, the nut body 2 is clamped or relaxed by the inner wall of the containing cavity in the elastic frame 1.

[0028] The free ends of the two clamping arm portions 101 are provided with locking members for connecting the two clamping arm portions 101 to the lock holes on the cabinet plate; when the free ends of the two clamping arm portions 101 approach or move away from each other, the locking members on the two clamping arm portions 101 can be correspondingly driven to approach or move away from each other, so that the locking members can be matched with the lock holes of the corresponding size and locked.

[0029] During installation, the two clamping arm portions 101 are pressed, so that the free ends of the two clamping arm portions 101 approach each other relative to the connecting portion 102, the containing cavity in the elastic frame 1 is contracted, the inner wall of the containing cavity clamps the nut body 2 in an abutting manner, at this time, the locking members on the two clamping arm portions 101 approach each other and are matched with the lock holes of the corresponding size; after the locking members are matched with the lock holes, the two clamping arm portions 101 are released, and under the action of the elastic force of the clamping arm portions 101, the two clamping arm portions 101 can move away from each other relative to the connecting portion 102 and return to the original position, the containing cavity in the elastic frame 1 is opened, the nut body 2 returns to the relaxed state in the containing cavity, at this time, the locking members on the two clamping arm portions 101 move away from each other and are locked with the lock holes of the corresponding size, so that the clamping nut assembly is completed.

[0030] The locking members on the two clamping arm portions 101 form a channel connected with the clamping opening, so that the bolt can be inserted into the elastic frame 1 and threadedly connected with the nut body 2 to complete the cabinet component installation.

[0031] In order to avoid the nut body 2 from being loose in the elastic frame 1 after installation and affecting the locking of the bolt, radial limiting members are arranged on the inner sides of the two clamping arm portions 101 of the elastic frame 1, the radial limiting members abut against the nut body 2 in a limiting manner and enable the nut body 2 to move axially relative to the elastic frame 1; elastic pressing members are arranged on the inner sides of the connecting portion 102 of the elastic frame 1, the elastic pressing members abut against the nut body 2 in an abutting manner and axially limit the nut body 2, and the nut body 2 is kept in contact with the radial limiting members.

[0032] At the beginning, the radial limiters on the two clamping arm portions 101 abut the radial two sides of the nut body 2 respectively, so as to limit the nut body 2 radially to be coaxial with the elastic holder 1, and make the nut body 2 have a tendency to move along the axis towards the connecting portion 102 relative to the elastic holder 1; the elastic pressing piece on the connecting portion 102 abuts the end face of the nut body 2 in the axial direction, so as to limit the nut body 2 axially to be located in the elastic holder 1 close to the clamping opening, and make the nut body 2 have a tendency to move along the axis towards the clamping opening relative to the elastic holder 1, so as to realize that the nut body 2 keeps in contact with the radial limiters.

[0033] When the two clamping arm portions 101 are squeezed, the free ends of the clamping arm portions 101 act on the radial limiters, the radial limiters can form a driving force parallel to the axis of the nut body 2 and a limiting force perpendicular to the axis of the nut body 2, so as to drive the nut body 2 to move along the axis towards the connecting portion 102 when the free ends of the two clamping arm portions 101 are close to each other, at this time, the elastic pressing piece is elastically deformed to form an elastic force, so as to make the nut body keep in contact with the radial limiters.

[0034] When the two clamping arm portions 101 are released, the elastic force formed by the elastic pressing piece acts on the nut body 2, so as to make the nut body 2 move along the axis towards the clamping opening to return to the initial position, and make the free ends of the two clamping arm portions 101 move away from each other to return to the initial position, when the free ends of the two clamping arm portions 101 return to the initial position, the nut body keeps in contact with the radial limiters, so as to make the nut body 2 not easy to loosen in the elastic holder 1, and the threaded hole on the nut body 2 is coaxial with the assembled lock hole, so as to facilitate the locking of the bolt and improve the assembly efficiency of the cabinet components.

[0035] It should be noted that the central axis of the elastic holder 1 in the embodiment is a virtual axis perpendicular to the middle of the connecting portion 102, and the nut body 2 in the embodiment is coaxial with the elastic holder 1, that is, the axis of the nut body 2 coincides with the central axis of the elastic holder 1.

[0036] Specifically, the elastic holder 1 is a rectangular shell structure made of elastic steel, and according to actual conditions, other existing elastic metal materials can also be used; the elastic holder 1 includes a top plate as the connecting portion 102, the top plate extends out the side plates perpendicular to the bottom surface of the top plate on the opposite sides and as the clamping arm portions 101, the top plate and the side plates enclose a containing cavity, the bottom ends of the two side plates are free ends and form a clamping opening between each other, and the nut body 2 is movably contained in the containing cavity from the clamping opening; the top plate is provided with the flaps 7 on the opposite other two sides, which are used to prevent the nut body 2 from leaving the containing cavity; when the two side plates are squeezed, the free ends of the two side plates can move close to each other relative to the top plate; since the elastic holder 1 is made of elastic steel and has a certain elasticity, when the two side plates are released, the free ends of the two side plates can move away from each other relative to the top plate to return to the original position under the action of the self-elastic force.

[0037] It should be noted that the length of the top plate is greater than the diameter of the nut body 2, and the length of the side plate is greater than the thickness of the nut body 2, so that a moving space is formed between the nut body 2 and the cavity wall of the accommodating cavity, so that the free ends of the two side plates can approach each other, and the nut body 2 can move axially in the accommodating cavity, so that the two side plates can be extruded, thereby driving the locking members on the two side plates to approach each other and be matched in the corresponding size of the lock hole.

[0038] The locking hook 3 comprises a connecting portion 301, a transition portion 302 and a hook portion 303 connected in sequence; the connecting portion 301 is arranged on the inner side surface of the free end of the side plate; one end of the transition portion 302 is connected with the end of the connecting portion 301, and the other end of the transition portion 302 is an extension end and extends away from the top plate; the hook portion 303 is arranged on the outer side surface of the extension end of the transition portion 302 and is opposite to the connecting portion 301, and the connecting portion 301, the transition portion 302 and the hook portion 303 form a clamping groove with a U-shaped cross section, so that the edge of the lock hole on the cabinet plate can be inserted to complete the locking.

[0039] When the two side plates are extruded, the two locking hooks 3 on the two side plates can approach each other, and the distance between the two locking hooks 3 gradually decreases, so that the two locking hooks 3 are inserted into the corresponding size of the lock hole; after being inserted into the lock hole, the two side plates are released, so that the locking members on the two side plates move away from each other, and the edge of the lock hole can be inserted into the clamping groove of the locking hook 3; after being inserted into the clamping groove, the opposite surfaces of the connecting portion 301 and the hook portion 303 are respectively connected with the two plate surfaces of the cabinet plate at the lock hole, and the edge of the lock hole is connected with the outer side surface of the transition portion 302, so that the locking is completed.

[0040] It should be noted that the width of the clamping groove on the locking hook 3 should be slightly greater than the thickness of the cabinet plate, so as to facilitate the insertion of the edge of the lock hole; the transition portions 302 of the two locking hooks 3 form a channel with a clamping opening, and the width of the channel should be greater than the diameter of the screw rod of the bolt, so as to facilitate the threaded connection of the bolt inserted into the elastic frame 1 and the nut body 2; in the embodiment, the transition portion 302 of the locking hook 3 is a straight plate structure, and according to actual needs, an arc plate structure can also be used instead.

[0041] The nut body 2 has two axial end surfaces, for the convenience of description, the two axial end surfaces of the nut body 2 are respectively named as a first axial end surface 201 and a second axial end surface 202; the first axial end surface 201 of the nut body 2 is opposite to the connecting portion 102 of the elastic frame 1 and abuts against the elastic pressing piece, and the second axial end surface 202 of the nut body 2 is opposite to the clamping opening of the elastic frame 1.

[0042] The radial limit member is a wedge block 4, which is located at a position where the clamping arm 101 is close to the clamping opening; when the nut body 2 is accommodated in the elastic frame 1, the wedge blocks 4 on the two clamping arm 101 respectively abut against the opposite sides of the nut body 2, and the outer side of the wedge block 4 and the outer side of the nut body 2 are respectively provided with a first wedge surface 401 and a second wedge surface 203 for fitting together when abutting; the first wedge surface 401 on the wedge block 4 is set to the thicker end of the wedge block 4 on the side close to the clamping opening, and is set to the thinner end of the wedge block 4 on the side away from the clamping opening; the second wedge surface 203 on the nut body 2 gradually tilts toward the axis direction from the position close to the first axial end face 201 to the second axial end face 202.

[0043] When the two clamping arms 101 are squeezed, the free ends of the two clamping arms 101 are retracted, and the nut body 2 slides from the first position to the second position along the first wedge surface 401 on the wedge block 4 with the second wedge surface 203, generating a driving force parallel to the axis of the nut body 2 and a limiting force perpendicular to the axis of the nut body 2, so as to drive the nut body 2 to move relative to the elastic frame 1 toward the connecting portion 102 and maintain radial limitation of the nut body 2 during movement.

[0044] When the two clamping arms 101 are released, the elastic pressure piece drives the nut body 2 to move toward the clamping direction relative to the elastic frame 1 and return to the initial position, and the nut body 2 slides from the second position to the first position along the first wedge surface 401 on the wedge block 4 with the second wedge surface 203, so that the free ends of the two clamping arms 101 are opened and returned to the initial position, and the first wedge surface 401 of the wedge block 4 can remain in contact with the second wedge surface 203 of the nut body 2 when the free ends of the two clamping arms 101 return to the initial position, so as to prevent the nut body 2 from loosening.

[0045] It should be noted that, in this embodiment, the first position is the thicker end of the wedge block 4, and the second position is the thinner end of the wedge block 4; the free ends of the two clamping arms 101 are retracted so that the free ends of the two clamping arms 101 are close to each other, and the free ends of the two clamping arms 101 are opened so that the free ends of the two clamping arms 101 are away from each other.

[0046] In this embodiment, an angle A is formed between the first wedge surface 401 of the wedge block 4 and the clamping arm portion 101 , and the angle A ranges from 25° to 65°.

[0047] The elastic pressing piece in the embodiment is a spiral spring 5, one end of the spiral spring 5 is connected with the connecting part 102 of the elastic frame 1, and the other end of the spiral spring 5 abuts against the first axial end face 201 of the nut body 2; initially, the spiral spring 5 is in an extended state; when the two clamping arm parts 101 are pressed, the spiral spring 5 is in a compressed state; the diameter of the spiral spring 5 should be greater than the diameter of the threaded hole of the nut body 2, so that the bolt can be locked into the second axial end face 202 of the nut body 2, and the bolt can be inserted into the spiral spring 5 from the first axial end face 201 of the nut body 2 to complete fastening.

[0048] Embodiment two

[0049] Referring to Figure 4 Compared with the technical scheme of the embodiment one, the difference of the embodiment two is that the elastic pressing piece in the embodiment is a pair of disc springs 6, the disc spring 6 has a large end and a small end, the pair of disc springs 6 are connected in a mode that the large ends are connected with each other, the small end of one disc spring 6 is connected with the connecting part 102 of the elastic frame 1, and the small end of the other disc spring 6 abuts against the first axial end face 201 of the nut body 2; compared with the spiral spring 5, the disc spring 6 is low in price, and the production cost of the clamp nut can be reduced.

[0050] The above embodiments of the utility model are not the limitation of the protection scope of the utility model, and the implementation mode of the utility model is not limited to this, and according to the above content of the utility model, according to the ordinary technical knowledge and the usual means in the art, other various forms of modification, replacement or change of the above structure of the utility model are made under the premise of not departing from the above basic technical thought of the utility model, and all should fall within the protection scope of the utility model.

Claims

1. A new type of snap nut for data center cabinets, comprising a resilient frame having two clamping arm portions and a connecting portion connecting one end of the two clamping arm portions, a receiving cavity is formed inside the resilient frame, and a clamping opening is formed between the free ends of the two clamping arm portions, which can accommodate the nut body in the receiving cavity; characterized in that, Two said clamping arm parts are provided with a radial limiting member on the inner side, which can limit the nut body to be coaxial with the elastic frame, and the radial limiting member is provided with a first wedge surface; the nut body is provided with a second wedge surface on the outer circumferential side corresponding to the first wedge surface; the connecting part is provided with an elastic pressing member on the inner side, which abuts against the axial one end of the nut body, so that the free ends of the two clamping arm parts are kept in close contact with the first wedge surface and the second wedge surface when they are folded or unfolded, and the nut body moves axially relative to the elastic frame.

2. The new type of cage nut for data center cabinets as claimed in claim 1, wherein, The radial limiting member is a wedge block, and the first wedge surface is provided on the side opposite to the nut body, and the first wedge surface is provided as the thicker end of the wedge block on the side close to the clamping opening, and as the thinner end of the wedge block on the side away from the clamping opening.

3. The new type of cage nut for data center cabinets of claim 2, wherein, The first wedge surface and the clamping arm part form an included angle A, and the included angle A ranges from 25° to 65°.

4. The new type of castle nut for data center cabinets as claimed in claim 1, wherein, The second wedge surface gradually inclines towards the axis direction from the position close to the axial end face of the nut body to the other axial end face.

5. The new type of cage nut for data center cabinets of claim 1, wherein, The elastic pressing member is a spiral spring, one end of the spiral spring is connected with the connecting part, and the other end of the spiral spring abuts against the axial one end of the nut body; initially, the spiral spring is in an extended state.

6. The new type of castle nut for data center cabinets as claimed in claim 1, wherein, The elastic pressing member is a pair of disc springs, the disc springs have a large opening end and a small opening end, and the pair of disc springs are connected at the large opening end, one small opening end of one disc spring is connected with the connecting part, and the small opening end of the other disc spring abuts against the axial one end face of the nut body.

7. The new type of cage nut for data center cabinets according to any one of claims 1-6, characterized in that, Two said clamping arm parts are provided with a radial limiting member on the inner side, which can limit the nut body to be coaxial with the elastic frame, and the radial limiting member is provided with a first wedge surface; the nut body is provided with a second wedge surface on the outer circumferential side corresponding to the first wedge surface; the connecting part is provided with an elastic pressing member on the inner side, which abuts against the axial one end of the nut body, so that the free ends of the two clamping arm parts are kept in close contact with the first wedge surface and the second wedge surface when they are folded or unfolded, and the nut body moves axially relative to the elastic frame.

8. The new type of castle nut for data center cabinets of claim 7, wherein, The first wedge surface and the clamping arm part form an included angle A, and the included angle A ranges from 25° to 65°.

9. The new type of cage nut for data center cabinets of claim 8, wherein, The second wedge surface gradually inclines towards the axis direction from the position close to the axial end face of the nut body to the other axial end face. The elastic pressing member is a spiral spring, one end of the spiral spring is connected with the connecting part, and the other end of the spiral spring abuts against the axial one end of the nut body; initially, the spiral spring is in an extended state. The elastic pressing member is a pair of disc springs, the disc springs have a large opening end and a small opening end, and the pair of disc springs are connected at the large opening end, one small opening end of one disc spring is connected with the connecting part, and the small opening end of the other disc spring abuts against the axial one end face of the nut body. Two said clamping arm parts are provided with a radial limiting member on the inner side, which can limit the nut body to be coaxial with the elastic frame, and the radial limiting member is provided with a first wedge surface; the nut body is provided with a second wedge surface on the outer circumferential side corresponding to the first wedge surface; the connecting part is provided with an elastic pressing member on the inner side, which abuts against the axial one end of the nut body, so that the free ends of the two clamping arm parts are kept in close contact with the first wedge surface and the second wedge surface when they are folded or unfolded, and the nut body moves axially relative to the elastic frame. The first wedge surface and the clamping arm part form an included angle A, and the included angle A ranges from 25° to 65°. The second wedge surface gradually inclines towards the axis direction from the position close to the axial end face of the nut body to the other axial end face. The elastic pressing member is a spiral spring, one end of the spiral spring is connected with the connecting part, and the other end of the spiral spring abuts against the axial one end of the nut body; initially, the spiral spring is in an extended state. The elastic pressing member is a pair of disc springs, the disc springs have a large opening end and a small opening end, and the pair of disc springs are connected at the large opening end, one small opening end of one disc spring is connected with the connecting part, and the small opening end of the other disc spring abuts against the axial one end face of the nut body.

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