Rod piece fastener

Abstract

The utility model relates to the technical field of side rail fasteners, in particular to a rod fastener which comprises a base, a rectangular rail clamping space and an annular cavity which are communicated with each other are formed in the base, a pressing sleeve is arranged in the annular cavity in a rotating structure mode, and a compression spring is arranged between the outer side face of the pressing sleeve and the side wall of the annular cavity. An anti-skid structure is arranged between the inner side of the pressing sleeve and the other side wall of the annular cavity, the pressing spring is arranged in the annular cavity, the pressing sleeve is pressed on the side wall of the annular cavity through the pressing spring, then the leg fixator support is prevented from toppling over after unlocking, the structural stability is improved, and safety is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of side rail fasteners, in particular to a rod fastener. BACKGROUND

[0002] The utility model discloses a fixed screw device on a knee joint operation leg fixer, including screw nut, screw rod, clamping bolt, internal thread sleeve, leg fixer support connecting end, adjusting gear 1, adjusting gear 2, bed clamp piece, positioning block, the screw nut is connected with screw rod threadedly, the screw rod is sleeved on the through -hole of clamping bolt, the clamping bolt is connected with internal thread sleeve threadedly, the internal thread sleeve is movably sleeved with adjusting gear 1, the connecting through -hole on adjusting gear 1 is sequentially penetrated with the connecting through -hole on internal thread sleeve by leg fixer support connecting end, adjusting gear 2 is engaged at the tooth surface of adjusting gear 1, adjusting gear 2 is movably sleeved on internal thread sleeve, the fixed connection of positioning block is formed on bed clamp piece.

[0003] The patent utilizes the clamping bolt to resist the leg fixer support connecting end, and utilizes the mutual engagement of the two adjusting gears to limit the inclination angle of the leg fixer in use, when it is necessary to disassemble, the two adjusting gears are in contact and engagement, and if the leg fixer support is not supported, the heavier end quickly drops due to the weight, and the patient is easily injured, and there is a certain safety hazard. CONTENT

[0004] To solve the above technical problems, the utility model provides a kind of rod fastener, the technical scheme that the utility model is used is as follows:

[0005] A kind of rod fastener, characterized by comprising:

[0006] Base, base is set with rectangular rail space and annular cavity that are interconnected;

[0007] Press sleeve, press sleeve is set in annular cavity with rotating structure, and pressure spring is arranged between the outer side of press sleeve and the side wall of annular cavity, and anti-skid structure is arranged between the inner side of press sleeve and the other side wall of annular cavity;

[0008] Middle shaft, one end of middle shaft is connected with press sleeve in fixed structure, and the other end extends to the outside of base and is provided with connecting through hole;

[0009] Jack screw, jack screw is connected with middle shaft, and jack screw extends into middle shaft;

[0010] Top core, top core is connected with middle shaft in sliding structure, and both ends of top core extend into base and connecting through hole respectively, and top core is provided with guide groove that is slidably connected with jack screw;

[0011] A compression bolt is inserted into the connecting through hole, and the compression bolt is connected to the middle shaft through thread engagement.

[0012] Further, the anti-skid structure is an end surface tooth arranged on the side wall of the annular cavity and the compression sleeve.

[0013] Further, the anti-skid structure is an anti-skid washer.

[0014] Further, an anti-skid groove is arranged on the outer end surface of the top core.

[0015] Further, the inner end surface of the top core is arranged as a V-shaped slope.

[0016] Further, the compression bolt is provided with an operating rod.

[0017] The beneficial effects of the present application are as follows: the spring is arranged in the annular cavity, the compression sleeve is compressed in the annular cavity side wall by the spring, the leg fixer support is prevented from falling after unlocking, the structural stability is improved, and the safety is enhanced.

[0018] The rectangular rail clamping space and the annular cavity are arranged in the base, so that the spring has an installation position and has sufficient support. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a three-dimensional structure schematic diagram of the present application.

[0020] Figure 2 is a sectional structure schematic diagram of the present application.

[0021] Figure 3 is a base sectional structure schematic diagram of the present application.

[0022] Figure 4 is a three-dimensional structure schematic diagram of the middle shaft and the compression sleeve of the present application.

[0023] IN THE DRAWINGS

[0024] 1, base, 2, rectangular rail clamping space, 3, annular cavity, 4, compression sleeve, 5, compression spring, 6, middle shaft, 7, connecting through hole, 8, top core, 9, jackscrew, 10, compression bolt, 11, end surface tooth, 12, anti-skid groove, 13, V-shaped slope, 14, operating rod. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail with reference to the drawings and the following embodiments, so that the public can better master the implementation method of the present application, and the specific implementation scheme of the present application is as follows:

[0026] The utility model provides a kind of bar fastener, including base 1, base 1 is equipped with rectangular rail space 2 and annular cavity 3 that are communicated with each other, rotating structure is arranged in annular cavity 3 with pressure sleeve 4, pressure spring 5 is arranged between the outer side of pressure sleeve 4 and the lateral wall of annular cavity 3, anti-skid structure is arranged between the inner side of pressure sleeve 4 and the other lateral wall of annular cavity 3, by setting pressure spring 5 in annular cavity 3, the lateral wall of annular cavity 3 is pressed tightly by pressure spring 5 with pressure sleeve 4, then prevent the leg fixator support from toppling after unlocking, improve structural stability, and enhance security.

[0027] Pressure sleeve 4 is equipped with middle shaft 6 in fixed structure, and the other end of middle shaft 6 extends to the outside of base 1 and is equipped with connecting through-hole 7, middle shaft 6 is equipped with top screw 9 by thread engagement, top screw 9 extends into the inside of middle shaft 6, and top core 8 is arranged in middle shaft 6 by sliding structure, and both ends of top core 8 extend into base 1 and connecting through-hole 7 respectively, and top core 8 is equipped with guide groove that is slidably connected with top screw 9;It is also provided with pressure bolt 10 that one end extends into connecting through-hole 7, and pressure bolt 10 is connected with middle shaft 6 by thread engagement.

[0028] In the embodiment, the anti-skid structure is end face tooth 11 arranged in the mutual engagement of pressure sleeve 4 and the lateral wall of annular cavity 3, and the structure is more reliable, which is a preferred mode, and in another embodiment, the anti-skid structure is anti-skid washer.

[0029] It should be noted that the outer end surface of top core 8 is provided with anti-skid groove 12 to increase the friction with the bed rail.

[0030] It should be noted that the inner end surface of top core 8 is provided with V-shaped inclined surface 13 to increase the holding force on the rod.

[0031] Pressure bolt 10 is provided with operating rod 14 to facilitate the adjustment of pressure bolt 10.

[0032] The working principle and working process of the utility model are as follows:

[0033] Insert the bed rail into the rectangular rail space 2, slide the base 1 to the predetermined position of the medical bed, insert the rod of the leg fixator support into the connecting through-hole 7, apply leftward pressure to the pressure bolt 10, move the middle shaft 6 to the left side with the pressure bolt 10, further compress the pressure spring 5, unlock the two engaged end face teeth 11, rotate the middle shaft 6 by the rod, and then stop applying leftward pressure after adjusting to the appropriate inclined position.

[0034] Rotate the pressure bolt 10 by the operating rod 14, the pressure bolt 10 is threadedly engaged with the middle shaft 6, a leftward thrust is applied to the rod, and then the rod pushes the top core 8 against the side surface of the bed rail, at this time, due to the threaded connection between the pressure bolt 10 and the middle shaft 6, a rightward counterforce is applied to the middle shaft 6, and then the two end face teeth 11 are closely engaged, and the fixing work is completed.

[0035] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "left lower", "right upper", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Although the utility model is described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of the utility model described herein.

Claims

1. A rod fastener, characterized by, The utility model relates to a kind of rail clamp, including: Base (1), base (1) is set with rectangular rail clamp space (2) and annular cavity (3) of intercommunication; Pressing sleeve (4), pressing sleeve (4) is set in annular cavity (3) with rotating structure, and pressing spring (5) is arranged between the outer side of pressing sleeve (4) and the side wall of annular cavity (3), and anti-skid structure is arranged between the inner side of pressing sleeve (4) and the other side wall of annular cavity (3); Middle shaft (6), one end of middle shaft (6) is connected with pressing sleeve (4) with fixed structure, and the other end extends to the outside of base (1) and is set with connecting through-hole (7); Top wire (9), top wire (9) is connected with middle shaft (6), and top wire (9) extends into middle shaft (6) inside; Top core (8), top core (8) is connected with middle shaft (6) with sliding structure, and both ends of top core (8) extend into base (1) and connecting through-hole (7) respectively, and top core (8) is set with guide groove that is slidably connected with top wire (9); Pressing bolt (10) that one end extends into connecting through-hole (7), pressing bolt (10) is connected with middle shaft (6) by thread engagement.

2. A rod fastener according to claim 1, wherein: Anti-skid structure is end face tooth (11) that is set in the interengagement of pressing sleeve (4) and the side wall of annular cavity (3).

3. A rod fastener according to claim 1, wherein: Anti-skid structure is anti-skid washer.

4. A rod fastener according to claim 1, wherein: Top core (8) outer end surface is set with anti-skid groove (12).

5. A rod fastener according to claim 4, wherein: Top core (8) inner end surface is set with V-shaped slope (13).

6. A rod fastener according to claim 4, wherein: Pressing bolt (10) is set with operating rod (14).

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