A pad installation tool

Abstract

The present invention discloses a pad installation tool, comprising a pressing head and a handle connected to the pressing head, wherein the pressing head comprises a first pressing part, a second pressing part and a receiving cavity arranged between the first pressing part and the second pressing part, and the pressing head is provided with a clamping part for clamping the pad. The pad installation tool of the present invention meets the requirements of ergonomics, is easy to use, reduces the labor intensity of pad installation, reduces the discomfort caused by the force on the operator's hand, and greatly improves the efficiency of pad installation.

Description

Technical Field

[0001] The invention relates to the technical field of reinforced concrete building materials, and in particular to a cushion block installation tool. Background Art

[0002] Reinforced concrete structures are widely used in the construction field. In prefabricated concrete components such as concrete poles and concrete water pipes and in on-site pouring construction, it is necessary to ensure that the distance between the steel bars and the concrete surface meets certain requirements. In other words, the thickness of the concrete on the outside of the steel bars needs to meet certain requirements as a protective layer for the steel bars to ensure that the steel bars play their best role and at the same time provide anti-corrosion protection for the steel bars. In order to ensure that the thickness of the steel bar protective layer meets the requirements during construction, built-in steel bar protective layer pads are increasingly widely used due to their good stability and small size. During the production process, built-in steel bar protective layer pads need to be installed on the steel cage. The existing steel bar protective layer pad installation method is mainly manual installation. During the installation process, the workers' manual labor intensity is high and the installation efficiency is low. Summary of the invention

[0003] The present invention aims to solve the above problems and designs a pad installation tool. The technical means adopted by the present invention are as follows:

[0004] A pad installation tool comprises a pressing head and a handle connected to the pressing head, wherein the pressing head comprises a first pressing part, a second pressing part and a accommodating cavity arranged between the first pressing part and the second pressing part, and the pressing head is provided with a clamping part for clamping the pad.

[0005] Furthermore, the pressing head includes a pressing head body and a first pressing part and a second pressing part arranged at both ends of the pressing head body, the first pressing part, the pressing head body and the second pressing part form a U-shaped structure, the handle is arranged at one end of the pressing head body, and the handle is inclined relative to the pressing head body to a side away from the first pressing part and the second pressing part.

[0006] Furthermore, the pressing end of the first pressing part is provided with a first pressing groove, the pressing end of the second pressing part is provided with a second pressing groove, and the inner side surfaces of the first pressing part and the second pressing part are both inclined surfaces, so that the accommodating cavity is a stepped cavity.

[0007] Furthermore, a clamping portion mounting groove is provided on the first pressing portion, the clamping portion includes two clamping arms installed in the clamping portion mounting groove, the handle is arranged at one end close to the second pressing portion, and a positioning protrusion for positioning the pad is provided at one end of the second pressing groove away from the first pressing groove.

[0008] Furthermore, the first pressing groove and the second pressing groove are two coaxially arranged arc-shaped surfaces, the slotting direction of the clamping part mounting groove is perpendicular to the axis of the first pressing groove, and the ends of the two clamping arms are inclined sections inclined to both sides respectively, so that a clamping protrusion is formed on the inner side of the clamping arm, and the two clamping arms clamp the pad from both sides, and the positioning protrusion is provided with a steel bar avoidance groove.

[0009] Furthermore, the clamping part is an integral structure made of an elastic steel wire or an elastic steel sheet, and the clamping part is fixed in a mounting groove of the clamping part by means of screws or pins.

[0010] Furthermore, the handle is provided with a convex surface and a first concave surface arranged back to back, the convex surface is connected to the back side of the pressing head body through the second concave surface, the first concave surface is connected to the outer side surface of the second pressing part through the third concave surface, and the two side surfaces of the handle are provided with a fourth concave surface connected to the side surface of the pressing head and a fifth concave surface connected to the fourth concave surface, and a handle tail section is formed between the two fifth concave surfaces on both sides of the handle, the width of which gradually decreases from the handle body to the end.

[0011] Furthermore, a bulge is formed between the first concave surface and the third concave surface, and the tangent of the bulge surface at one end away from the second concave surface is parallel to the axis of the first pressing groove or inclined in the same direction as the handle, and the tangent of the first concave surface at one end away from the third concave surface is inclined in the same direction as the handle.

[0012] Furthermore, a tangent line of one end of the convex surface away from the second inner concave surface is parallel to the axis of the first pressing groove, and the second inner concave surface is tangent to the back surface of the pressing head body.

[0013] Furthermore, the angle between the chord of the first concave surface and the axis of the first press groove is 30-50 degrees, the angle between the chord of the convex surface and the axis of the first press groove is 30-50 degrees, the angle between the chord of the first concave surface and the axis of the first press groove is greater than the angle between the chord of the convex surface and the axis of the first press groove, and the angle is preferably 30-40 degrees.

[0014] Compared with the prior art, the pad installation tool described in the present invention meets the requirements of ergonomics, is easy to use, reduces the labor intensity of pad installation, reduces the discomfort caused by the operator's hand force, and greatly improves the efficiency of pad installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure from another angle of an embodiment of the present invention.

[0017] Figure 3It is a schematic diagram of the main structure of an embodiment of the present invention.

[0018] Figure 4 yes Figure 3 Bottom view of .

[0019] Figure 5 yes Figure 3 Right view of .

[0020] Figure 6 yes Figure 5 AA section view.

[0021] Figure 7 Schematic diagram of the use status of an embodiment of the present invention. DETAILED DESCRIPTION

[0022] like Figures 1 to 6 As shown, a gasket installation tool includes a pressing head 1 and a handle 2 connected to the pressing head 1, the pressing head 1 includes a first pressing part 101, a second pressing part 102 and a accommodating cavity 103 arranged between the first pressing part 101 and the second pressing part 102, and the pressing head 1 is provided with a clamping part 3 for clamping the gasket 4.

[0023] The pressing head 1 includes a pressing head body 104 and a first pressing portion 101 and a second pressing portion 102 disposed at both ends of the pressing head body 104, wherein the first pressing portion 101, the pressing head body 104 and the second pressing portion 102 form a U-shaped structure, and the handle 2 is disposed at one end of the pressing head body 104, and the handle 2 is inclined relative to the pressing head body 104 toward a side away from the first pressing portion 101 and the second pressing portion 102. In a preferred embodiment, the first pressing portion 101, the second pressing portion 102 and the handle 2 are arranged in sequence to form a symmetrical structure.

[0024] The pressing end of the first pressing part 101 is provided with a first pressing groove 105, and the pressing end of the second pressing part 102 is provided with a second pressing groove 106. The inner side surfaces of the first pressing part 101 and the second pressing part 102 are both inclined surfaces, so that the accommodating cavity 103 is a stepped cavity, corresponding to the shape of the cross-conical support portion of the cushion block 4.

[0025] A clamping portion mounting groove 107 is provided on the first pressing portion 101, and the clamping portion 3 includes two clamping arms 301 installed in the clamping portion mounting groove 107. Since the width of the first pressing portion 101 is greater than the shoulder width of the cushion block 4, the setting of the clamping portion mounting groove 107 makes the upper part of the clamping portion 3 located in the clamping portion mounting groove 107, and an effective clamping width is formed between the two clamping arms 301 to clamp and fix the shoulder of the cushion block 4. The handle 2 is arranged at one end close to the second pressing portion 102, and a positioning protrusion 108 for positioning the cushion block 4 is provided at one end of the second pressing groove 106 away from the first pressing groove 105. In a preferred embodiment, the first pressing groove 105 and the second pressing groove 106 are two coaxially arranged arc-shaped surfaces corresponding to the shape of the shoulder of the clamping structure of the pad. The slotting direction of the clamping portion mounting groove 107 is perpendicular to the axis of the first pressing groove 105, so that the two clamping arms 301 clamp the pad 4 on both sides. The ends of the two clamping arms 301 are inclined sections 302 inclined to both sides respectively, so that a clamping protrusion 303 is formed on the inner side of the clamping arm 301. The inclined section 302 plays a guiding role when the pad is installed, which is convenient for clamping and installing the pad. The positioning protrusion 108 is provided with a steel bar avoidance groove 109.

[0026] The clamping part 3 is an integrated structure made of an elastic steel wire or an elastic steel sheet, and can be specifically a bent elastic steel wire or elastic steel sheet structure. The clamping part 3 is fixed in the clamping part mounting groove 107 by screws or pins.

[0027] The handle 2 is provided with a convex surface 201 and a first concave surface 202 arranged in back to back, the convex surface 201 is connected to the back of the pressing head body 104 through the second concave surface 203, the first concave surface 202 is connected to the outer side of the second pressing part 102 through the third concave surface 204, and the two side surfaces of the handle 2 are provided with a fourth concave surface 206 connected to the side of the pressing head 1 and a fifth concave surface 207 connected to the fourth concave surface 206, and the two opposite fourth concave surfaces 206 form a handle body 208 with a middle width smaller than the width at both ends, and the two second concave surfaces 206 on both sides of the handle are connected to the outer side of the second pressing part 102 through the third concave surface 204. A handle tail section 209 is formed between the five inner concave surfaces 207, the width of which gradually decreases from the handle body to the end. During the installation of the gasket, the handle body 208 cooperates with the operator's middle finger, so that the middle finger surrounds the narrower middle part of the handle body 208. At the same time, the fingertip of the middle finger can press the part of the fourth inner concave surface 206 close to the fifth inner concave surface 207 to facilitate force application. The handle tail section 209 cooperates with the operator's ring finger and little finger. The closer to the end, the narrower the width, which is convenient for the smaller ring finger and the smaller little finger to surround, which is convenient for applying force during operation and improves the comfort of holding.

[0028] A protrusion 205 is formed between the first inner concave surface 202 and the third inner concave surface 204, so that the third inner concave surface 204 can be used to cooperate with the index finger, and the protrusion serves as the force application point of the index finger, increasing the torque in the force application direction, making the operation more labor-saving. The tangent line b of the end of the protrusion surface 201 away from the second inner concave surface 203 is parallel to the axis a of the first pressing groove 105 or inclined in the same direction as the handle 2. When the second pressing part 102 presses the cushion block 4, the torque of the handle 2 is large, which is convenient for operation. The tangent c of one end of the first concave surface 202 away from the third concave surface 204 is inclined in the same direction as the handle. When the cushion block 4 is pressed through the first pressing portion 101 with the second pressing portion 102 as the support point, the handle 2 and the first pressing portion 101 form a lever with the second pressing portion 102 as the support point. The tangent c of one end of the first concave surface 202 away from the third concave surface 204 is inclined in the same direction as the handle 2, which makes the torque of the lever larger, further making the operation effortless.

[0029] As a preferred embodiment, the tangent of one end of the raised surface 201 away from the second concave surface 203 is parallel to the axis of the first pressing groove, and the second concave surface 203 is tangent to the back of the pressing head body 104. The second concave surface 203 or the connection between it and the back of the pressing head body 104 can be used as a pressing point for the thumb. When the handle 2 and the first pressing part 101 form a lever with the second pressing part 102 as a supporting point, a supporting point is formed at the second supporting part 102. While serving as a supporting point, force is applied to the first pressing part 101, so that the first pressing part 101 forms a double-torque pressing.

[0030] The angle between the chord e of the first concave surface 202 and the axis of the first pressing groove 105 is 30-50 degrees, the angle between the chord d of the convex surface 201 and the axis of the first pressing groove 105 is 30-50 degrees, and the angle between the chord of the first concave surface 202 and the axis of the first pressing groove 105 is greater than the angle between the chord of the convex surface 201 and the axis of the first pressing groove 105. The angle is preferably 30-40 degrees, so that the angle between the overall angle of the handle and the axis of the first pressing groove 105 is most suitable for hand-held operation, thereby improving the comfort of operation. In this embodiment, the pressing head 1 and the handle 2 are an integrated structure. The chord and tangent described in this embodiment are the chords and tangents of the visual curve of the curved surface under the side view. The joints and corners of each surface of this embodiment are rounded to improve the hand-held comfort. This embodiment is applicable to various types of built-in pads for concrete protective layers, such as the built-in pads for steel bar protective layers disclosed in patent [201921785229.5], and other similar pad products.

[0031] like Figure 7As shown, when installing the pad 4, first place the two clamping structures (shoulders) of the pad 4 into the first pressing groove 105 and the second pressing groove 106 respectively, and the pad 4 is clamped and fixed by the clamping part 3 and positioned by the positioning protrusion 108. The supporting part of the pad is placed in the accommodating cavity 103, and the handle 2 is held, and first one of the clamping structures of the pad is pressed onto the stirrup 5 through the second pressing part 102 (the pad can also be pressed onto the main reinforcement 6 according to the type of pad, and the pad for clamping the stirrup is taken as an example here to achieve clamping, and then while pressing the second concave surface 203 with the thumb, lift the handle upwards and press the other clamping structure of the pad onto the stirrup 5 through the first pressing part 101. Since the clamping part 3 is an elastic clamp, when the installation tool is removed, the pad slides out of the clamping part 3, and the installation is completed. It is easy to use, reduces the labor intensity of pad installation, reduces the discomfort caused by the force on the operator's hand, and greatly improves the pad installation efficiency.

[0032] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A pad installation tool, characterized in that: The invention comprises a pressing head and a handle connected to the pressing head, wherein the pressing head comprises a first pressing part, a second pressing part and a receiving cavity arranged between the first pressing part and the second pressing part, wherein the receiving cavity corresponds to the shape of the cross-conical supporting part of the cushion block, and the pressing head is provided with a clamping part for clamping the cushion block; The pressing end of the first pressing part is provided with a first pressing groove, the pressing end of the second pressing part is provided with a second pressing groove, and the first pressing groove and the second pressing groove cooperate with two shoulders of the cushion block; The clamping portion is an elastic integrated structure; The pressing head comprises a pressing head body and a first pressing portion and a second pressing portion arranged at two ends of the pressing head body, wherein the first pressing portion, the pressing head body and the second pressing portion form a U-shaped structure, and the handle is arranged at one end of the pressing head body, and the handle is inclined relative to the pressing head body to a side away from the first pressing portion and the second pressing portion; The inner side surfaces of the first pressing portion and the second pressing portion are both inclined surfaces, so that the accommodating cavity is a stepped cavity; The first pressing part is provided with a clamping part installation groove, the clamping part includes two clamping arms installed in the clamping part installation groove, the handle is arranged at one end close to the second pressing part, and the second pressing groove is provided with a positioning protrusion for positioning the cushion block at one end away from the first pressing groove; The first pressing groove and the second pressing groove are two coaxially arranged arc-shaped surfaces, the slotting direction of the clamping part installation groove is perpendicular to the axis of the first pressing groove, and the ends of the two clamping arms are inclined sections inclined to both sides respectively, so that a clamping protrusion is formed on the inner side of the clamping arm, and the two clamping arms clamp the pad from both sides, and a steel bar avoidance groove is provided on the positioning protrusion.

2. The pad installation tool according to claim 1, characterized in that: The clamping part is an integral structure made of elastic steel wire or elastic steel sheet, and the clamping part is fixed in the clamping part mounting groove by screws or pins.

3. The pad installation tool according to claim 1 or 2, characterized in that: The handle is provided with a convex surface and a first concave surface arranged back to back, the convex surface is connected to the back side of the pressing head body through the second concave surface, the first concave surface is connected to the outer side surface of the second pressing part through the third concave surface, and the two side surfaces of the handle are provided with a fourth concave surface connected to the side surface of the pressing head and a fifth concave surface connected to the fourth concave surface, and a handle tail section is formed between the two fifth concave surfaces on both sides of the handle, the width of which gradually decreases from the handle body to the end.

4. The pad installation tool according to claim 3, characterized in that: A bulge is formed between the first concave surface and the third concave surface, and the tangent of one end of the bulge surface away from the second concave surface is parallel to the axis of the first pressing groove or inclined in the same direction as the handle, and the tangent of one end of the first concave surface away from the third concave surface is inclined in the same direction as the handle.

5. The pad installation tool according to claim 4, characterized in that: A tangent line of one end of the convex surface away from the second inner concave surface is parallel to the axis of the first pressing groove, and the second inner concave surface is tangent to the back surface of the pressing head body.

6. The pad installation tool according to claim 5, characterized in that: The angle between the chord of the first concave surface and the axis of the first press groove is 30-50 degrees, the angle between the chord of the convex surface and the axis of the first press groove is 30-50 degrees, and the angle between the chord of the first concave surface and the axis of the first press groove is greater than the angle between the chord of the convex surface and the axis of the first press groove.

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