Clamping device

Abstract

The utility model discloses a clamping device which comprises a seat body, a fixed clamping block and a mounting block which are oppositely arranged are fixedly arranged on the seat body, a movable clamping block capable of moving relative to the fixed clamping block is arranged between the fixed clamping block and the mounting block, a guide channel is arranged in the mounting block, a section of internal thread is arranged on the inner wall of the guide channel, and the inner wall of the guide channel is provided with a section of external thread. A movable sleeve capable of moving along the guide channel is arranged in the guide channel in a penetrating mode, one end of the movable sleeve is connected with the movable clamping block, the other end of the movable sleeve extends out of the installation block to form an operation part, an avoiding hole is formed in the outer wall of the movable sleeve, a clamping block is arranged in the position, at the avoiding hole, of the movable sleeve, and the clamping block is hinged to the movable sleeve through a pin shaft. A locking part corresponding to the receding hole is arranged at one end of the clamping block, an external thread top capable of being in threaded fit with the internal thread of the guide channel is arranged at the outer end of the locking part, an elastic piece is arranged between the clamping block and the movable sleeve, and an unlocking mechanism is further arranged on the movable sleeve. The device has the advantage of being convenient to operate and use.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping equipment, in particular to a clamping device. Background Art

[0002] The structure of the clamping device currently used includes: a C-shaped base body, on which a fixed clamping block and a mounting block are fixedly mounted relatively, a movable clamping block that can move relative to the fixed clamping block is provided between the fixed clamping block and the mounting block, an internal threaded hole passing through the mounting block is provided in the mounting block, a screw is threadedly connected to the internal threaded hole of the mounting block, one end of the screw extends out of the mounting block and is fixedly connected to the movable clamping block, and the other end of the screw extends out of the mounting block and is provided with a handle for rotation.

[0003] When in use, first align the fixed clamp, movable clamp and C-shaped slots formed by the base body and buckle them on the mounting rod of the equipment bracket, then rotate the screw by the handle, and the screw moves axially along the internal thread hole of the mounting block through the cooperation of the external thread and the internal thread, thereby synchronously driving the movable clamp close to the fixed clamp to clamp the equipment bracket, or synchronously driving the movable clamp away from the fixed clamp to loosen the equipment bracket.

[0004] The disadvantages of the clamping device currently used are that the movable clamping block can only slowly move closer to or away from the fixed clamping block during the process of clamping and loosening the equipment bracket, which is inconvenient to operate and use, and has low installation and disassembly efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a clamping device which is easy to operate and use.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a clamping device includes a base body, a relatively fixed clamping block and a mounting block are fixedly installed on the base body, a movable clamping block that can move relative to the fixed clamping block is provided between the fixed clamping block and the mounting block, a guide channel facing the fixed clamping block and passing through the mounting block is provided in the mounting block, an internal thread is provided on the inner wall of the guide channel, a movable sleeve that can move along the guide channel is passed through the guide channel, one end of the movable sleeve is connected to the movable clamping block, and the other end of the movable sleeve extends out of the mounting block to form an operating part, an avoidance hole is provided on the outer wall of the movable sleeve, a clamping block is provided in the movable sleeve at the avoidance hole, the clamping block is hinged to the movable sleeve through a pin shaft, a locking part corresponding to the avoidance hole is provided at one end of the clamping block, and a locking part corresponding to the avoidance hole is provided at the locking part The outer end is provided with an external threaded top that can be threadedly matched with the internal thread of the guide channel, and an elastic member is provided between the clamping block and the movable sleeve. Under the elastic force of the elastic member, the clamping block will rotate around the pin shaft until the external threaded top of the locking part extends out of the avoidance hole and the movable sleeve is threadedly engaged with the internal thread of the guide channel, so that the movable sleeve can move along the guide channel through the external threaded top of the clamping block and the internal thread of the guide channel, so as to synchronously drive the movable clamping block to approach the fixed clamping block to clamp the equipment bracket, or synchronously drive the movable clamping block away from the fixed clamping block to loosen the equipment bracket. The movable sleeve is also provided with an unlocking mechanism that can disengage the external threaded top of the locking part of the clamping block from the internal thread of the guide channel, so that the movable sleeve can quickly move axially along the guide channel to synchronously drive the movable clamping block to quickly approach or move away from the fixed clamping block.

[0007] Furthermore, the aforementioned clamping device, wherein: the tooth profile of the external thread of the external thread top of the clamping block is a right-angled trapezoid, the external thread of the external thread top is a right-angled waist of the tooth away from the fixed clamping block and the oblique waist of the tooth is close to the fixed clamping block, and the tooth profile of the internal thread on the inner wall of the guide channel is a right-angled trapezoid adapted to the external thread of the external thread top of the clamping block.

[0008] Further, the aforementioned clamping device, wherein: the specific structure of the guide channel includes: a first stepped through hole is provided in the mounting block and passes through the mounting block, the small-diameter section of the first stepped through hole is close to the fixed clamping block, the inner diameter of the small-diameter section of the first stepped through hole is adapted to the outer diameter of the movable sleeve, the large-diameter section of the first stepped through hole is away from the fixed clamping block, a positioning sleeve for the movable sleeve to pass through is inserted into the large-diameter section of the first stepped through hole, the positioning sleeve is fixedly installed on the mounting block by a locking mechanism, and an internal thread forming an internal thread section of the guide channel is provided on the inner wall of the positioning sleeve, and the small-diameter section of the first stepped through hole of the mounting block and the positioning sleeve together constitute the guide channel.

[0009] Furthermore, the aforementioned clamping device, wherein: the structure of the locking mechanism includes: a first radial locking threaded hole is provided on the mounting block, which radially passes through to the large-diameter section of the first stepped through hole, and a first fixing screw is threadedly connected in the first radial locking threaded hole to tighten and fix the positioning sleeve in the first stepped through hole of the mounting block.

[0010] Furthermore, the aforementioned clamping device, wherein: the structure of the unlocking mechanism includes: an unlocking rod and a cap, the cap is installed at the tube end of the operating part of the movable sleeve, a chamber connected to the inner cavity of the movable sleeve is formed between the cap and the tube end of the operating part of the movable sleeve, a through hole axially penetrating the cap is provided on the cap, the unlocking rod is arranged in the movable sleeve between the clamping block and the cap, an unlocking drive part is provided on the clamping block, a pushing part facing the unlocking drive part of the clamping block is provided at the end of the unlocking rod close to the clamping block, the end of the unlocking rod away from the clamping block extends out of the through hole of the cap to form a pressing part, a circle of positioning bosses located in the chamber is provided on the outer wall of the unlocking rod, a spring is provided in the chamber, and one end of the spring presses against the unlocking rod The cam is pressed against the locking cam, and the other end of the spring is pressed against the end face of the tube end of the operating part of the movable sleeve. Under the outward elastic force of the spring, the unlocking rod always has the tendency to move along the movable sleeve in the direction away from the fixed clamping block until it does not hinder the clamping block from rotating around the pin shaft until the external thread top of the locking part is threadedly engaged with the internal thread of the guide channel. When the pressing part of the unlocking rod is pressed to make the unlocking rod overcome the elastic force of the spring and move along the movable sleeve toward the fixed clamping block, the unlocking rod can move against the unlocking driving part of the clamping block through the pushing part, so that the clamping block rotates around the pin shaft until the external thread top of the locking part of the clamping block is disengaged from the internal thread of the guide channel, thereby allowing the movable sleeve to move axially rapidly along the guide channel to synchronously drive the movable clamping block to quickly approach or move away from the fixed clamping block.

[0011] Furthermore, the aforementioned clamping device, wherein: the specific connection structure between the cap and the movable sleeve includes: a sleeve is fixedly provided on one end surface of the cap, the cap is sleeved on the outside of the operating portion tube end of the movable sleeve through the sleeve, a second radial locking threaded hole radially penetrating the sleeve wall is provided on the sleeve wall, a second set screw is threadedly connected in the second radial locking screw hole, the second set screw is tightly pressed against the side wall of the movable sleeve to connect and fix the cap and the movable sleeve together.

[0012] Furthermore, in the aforementioned clamping device, the elastic member is a torsion spring disposed in the movable sleeve, one end of the torsion spring is connected to the locking portion of the clamping block, and the other end of the torsion spring is connected to the movable sleeve.

[0013] The cam is fixed with a screw thread on the end of the movable sleeve and a screw thread on the end of the movable sleeve is fixed with a screw thread on the end of the movable sleeve, wherein the screw thread on the movable sleeve is fixed with a screw thread on the end of the movable sleeve, and the screw thread on the movable sleeve is connected with the screw thread on the end of the movable sleeve, thereby connecting the movable clamp to the movable sleeve and enabling the movable sleeve to rotate relative to the movable clamp around its own axis.

[0014] Furthermore, in the aforementioned clamping device, a guide positioning groove is axially provided at the bottom of the movable clamping block, and an axial guide strip is provided on the seat body, and the movable clamping block moves closer to or away from the fixed clamping block along the axial guide strip through the guide positioning groove.

[0015] Through the implementation of the above technical solution, the beneficial effects of the utility model are as follows: in the process of clamping the clamping device to the equipment bracket, the movable clamping block can first be quickly moved close to the fixed clamping block, and then the movable clamping block can be moved by the threaded cooperation between the movable sleeve and the guide channel of the seat body, so that the movable clamping block and the fixed clamping block are relatively clamped to clamp the equipment bracket, thereby quickly clamping the equipment bracket; and when the clamping device needs to be removed from the equipment bracket, the movable clamping block can be quickly moved away from the fixed clamping block, thereby quickly loosening the equipment bracket, which is not only convenient to operate and use, but also improves the installation and disassembly efficiency; (2) in the process of the movable clamping block moving toward the fixed clamping block to clamp the equipment bracket, through the cooperation design of the movable clamping block guide positioning groove and the axial guide strip, and the connection structure design of the movable clamping block and the movable sleeve, it can be ensured that in the process of the movable clamping block moving close to the fixed clamping block to clamp the equipment bracket, the movable clamping block will not rotate relative to the fixed clamping block, so that the movable clamping block always maintains a stable posture that can cooperate with the fixed clamping block to clamp the equipment bracket, thereby improving the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the clamping device described in the present utility model.

[0017] Figure 2 for Figure 1 Top view of .

[0018] Figure 3 for Figure 2 AA cross-sectional diagram shown in .

[0019] Figure 4 for Figure 3 An enlarged schematic diagram of site B is shown in FIG.

[0020] Figure 5 for Figure 1 Stereoscopic image.

[0021] Figure 6 It is a cross-sectional schematic diagram of the seat body.

[0022] Figure 7 It is a three-dimensional diagram of the seat.

[0023] Figure 8 for Figure 6 The schematic diagram of the structure after the positioning sleeve is hidden in the middle.

[0024] Figure 9 A three-dimensional diagram of the positioning sleeve.

[0025] Figure 10 It is a three-dimensional diagram of the card block.

[0026] Figure 11 It is a structural diagram of the movable clamp.

[0027] Figure 12 for Figure 11 Schematic diagram of the CC section shown in .

[0028] Figure 13 It is a three-dimensional diagram of the movable clamp.

[0029] Figure 14 A perspective view of the unlocking lever.

[0030] Figure 15 A perspective view of the movable sleeve.

[0031] Figure 16 A three-dimensional diagram of the cap.

[0032] Figure 17 It is a schematic diagram of the connection relationship between the movable sleeve, the clamping block, the cap and the unlocking rod.

[0033] Figure 18 for Figure 17 DD cross-sectional view shown in .

[0034] Figure 19 for Figure 17 Stereoscopic image. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0036] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 、 Figure 15 、 Figure 16 As shown, the clamping device includes a base body 1, on which a relatively arranged fixed clamping block 2 and a mounting block 3 are fixedly installed. In this embodiment, the base body 1, the fixed clamping block 2 and the mounting block 3 are integrally formed; a movable clamping block 4 that can move relative to the fixed clamping block 2 is provided between the fixed clamping block 2 and the mounting block 3, and a guide channel facing the fixed clamping block 2 and passing through the mounting block 3 is provided in the mounting block 3, and an internal thread 5 is provided on the inner wall of the guide channel, and a movable sleeve 6 that can move along the guide channel is passed through the guide channel. In this embodiment, the specific structure of the guide channel includes: a first stepped through hole is provided in the mounting block 3, which passes through the mounting block 3, and the small-diameter section 101 of the first stepped through hole is close to the fixed clamping block 2, and the large-diameter section 102 of the first stepped through hole is away from the fixed clamping block 2. The inner diameter of the small-diameter section 101 of the first stepped through hole is adapted to the outer diameter of the movable sleeve 6, so that when the movable sleeve 6 is passed through the guide channel, the small-diameter section 102 of the first stepped through hole is adapted to the outer diameter of the movable sleeve 6. The aperture section 101 can stably support and guide the movable sleeve 6, so that the movable sleeve 6 can always remain coaxial with the guide channel, thereby ensuring that the movable sleeve 6 does not shake during the movement along the guide channel, thereby improving the stability of the movable sleeve during movement; a positioning sleeve 11 for the movable sleeve 6 to pass through is inserted into the large-diameter section 102 of the first stepped through hole, and the positioning sleeve 11 is fixedly mounted on the mounting block 3 by a locking mechanism, and an internal thread 5 forming an internal thread section of the guide channel is provided on the inner wall of the positioning sleeve 11, and the first stepped through hole small-diameter section 101 of the mounting block 3 and the positioning sleeve 11 together constitute the guide channel; in this embodiment, the structure of the locking mechanism includes: a first radial locking threaded hole 12 is provided on the mounting block 3, which radially passes through to the large-diameter section 102 of the first stepped through hole, and a first set screw 13 for tightening and fixing the positioning sleeve 6 in the first stepped through hole of the mounting block 3 is threadedly connected in the first radial locking threaded hole 12;

[0037] One end of the movable sleeve 6 is connected to the movable clamping block 4, and the other end of the movable sleeve 6 extends out of the mounting block 3 to form an operating portion 61. An avoidance hole 62 is provided on the outer wall of the movable sleeve 6, and a clamping block 7 is provided in the movable sleeve at the avoidance hole 62. The clamping block 7 is hinged to the movable sleeve 6 through a pin shaft 8, and a locking portion 71 corresponding to the avoidance hole 62 is provided at one end of the clamping block 7. An external thread top 72 that can be threadedly matched with the internal thread 5 of the guide channel is provided at the outer end of the locking portion 71. An elastic member is provided between the clamping block 7 and the movable sleeve 6. In this embodiment, the elastic member is a torsion spring 9 provided in the movable sleeve 6, one end of the torsion spring 9 is connected to the locking portion 71 of the clamping block 7, and the other end of the torsion spring 9 is connected to the movable sleeve 6; Under the elastic force of the torsion spring 9, the clamping block 7 rotates around the pin shaft 8 until the external thread top 72 of the locking portion 71 extends out of the avoidance hole 62 and engages with the movable sleeve 6 and is threadedly engaged with the internal thread 5 of the guide channel, so that the movable sleeve 6 can move along the guide channel through the cooperation between the external thread top 72 of the clamping block and the internal thread 5 of the guide channel, thereby synchronously driving the movable clamping block 4 to approach the fixed clamping block 2 to clamp the equipment bracket, or synchronously driving the movable clamping block 4 to move away from the fixed clamping block 2 to loosen the equipment bracket. The movable sleeve 6 is also provided with an unlocking mechanism that can disengage the external thread top 72 of the clamping block locking portion 71 from the internal thread 5 of the guide channel, so that the movable sleeve 6 can quickly move axially along the guide channel to synchronously drive the movable clamping block 4 to quickly approach or move away from the fixed clamping block 2;

[0038] In this embodiment, if Figure 17 、 Figure 18 、 Figure 19As shown, the structure of the unlocking mechanism includes: an unlocking rod 14 and a cap 15, wherein the cap 15 is installed at the tube end of the operating part 61 of the movable sleeve 6, and a chamber 16 connected to the inner cavity of the movable sleeve is formed between the cap 15 and the tube end of the movable sleeve operating part 61, and a through hole 151 axially penetrating the cap 15 is provided at the center of the cap 15. The unlocking rod 14 is arranged in the movable sleeve 6 between the block 7 and the cap 15, and the block 7 is provided with an unlocking driving part 73, and a pushing part 141 is provided at the end of the unlocking rod 14 close to the block 7, facing the unlocking driving part 73 of the block, and the end of the unlocking rod 14 away from the block extends out of the cap 15 from the through hole 151 to form a pressing part 142, and the operator can conveniently operate the unlocking rod 14 through the pressing part 142. A circle of positioning bosses 143 located in the chamber 16 is provided on the outer wall of the unlocking rod 14, and a spring 17 is provided in the chamber 16. One end of the spring 17 When the locking cam 7 is in the unlocking state, the locking cam 7 is in the unlocking state, and the locking cam 7 is in the unlocking state, so that the locking cam 7 is in the unlocking state, and the locking cam 7 is in the unlocking state, so that the locking cam 7 is in the unlocking state, and the locking cam 7 is in the unlocking state, so that the locking cam 7 is in the unlocking state, and the locking cam 7 is in the unlocking state, so that the locking cam 7 is in the unlocking state, and the locking cam 7 is in the unlocking state, so that the locking cam 7 is in the unlocking state, and the locking cam 7 is in the unlocking state, so that the locking cam 7 is in the unlocking state, and the locking cam 7 is in the unlocking state.In this embodiment, the tooth profile of the external thread of the external thread top 72 of the clamping block 7 is a right-angled trapezoid, the external thread of the external thread top 72 is a right-angled waist 73 away from the fixed clamping block 2 and the oblique waist 74 of the tooth is close to the fixed clamping block 2, and the tooth profile of the internal thread 5 on the inner wall of the guide channel is a right-angled trapezoid that matches the external thread of the external thread top 72 of the clamping block, that is, the tooth profile of the internal thread 5 on the inner wall of the positioning sleeve 11 is a right-angled trapezoid that matches the external thread of the external thread top 72 of the clamping block. The advantage of this design is that when the external thread top of the clamping block 7 When the external thread top 72 of the clamping block 7 is threadedly engaged with the internal thread 5 of the positioning sleeve 11, the external thread top 72 of the clamping block 7 can form a "ratchet-like" structure with the internal thread 5 of the positioning sleeve 11. The "ratchet-like" structure allows the movable sleeve 6 and the clamping block 7 to continue to move along the guide channel toward the direction close to the fixed clamping block 2, but does not allow the movable sleeve 6 and the clamping block to move along the guide channel toward the direction away from the fixed clamping block 2. Because when the external thread top 72 of the clamping block 7 is threadedly engaged with the internal thread 5 of the positioning sleeve 11, the movable sleeve 6 is forced to move toward the fixed clamping block 2. After the external force of the fixed clamping block 2 is applied, the outer thread of the clamping block 7 is matched with the outer thread waist 74 of the outer thread top 72 of the clamping block 7 and the inner thread waist 51 of the positioning sleeve 11. The outer thread top 72 of the clamping block 7 will continuously withdraw and continuously engage with the next section of the inner thread, so as to achieve the purpose of the movable sleeve 6 and the clamping block 7 continuing to move along the guide channel toward the fixed clamping block 2 when the outer thread top 72 of the clamping block 7 is threadedly engaged with the inner thread 5 of the positioning sleeve 11; and when the outer thread top 72 of the clamping block 7 is threadedly engaged with the inner thread 5 of the positioning sleeve 11, the movable sleeve 6 and the clamping block 7 can still move toward the fixed clamping block 2 along the guide channel; and when the outer thread top 72 of the clamping block 7 is engaged with the positioning sleeve 11 When the internal thread 5 of the positioning sleeve 11 is threadedly engaged with the internal thread 5, after the movable sleeve 6 is subjected to an external force moving away from the fixed clamping block 2, the clamping block 7 is restrained by the mutual restraining effect of the right-angle waist 73 of the external thread of the external thread top 72 of the clamping block 7 and the right-angle waist 52 of the internal thread 5 of the positioning sleeve 11, and the external thread top 72 of the clamping block 7 cannot be withdrawn from the internal thread 5, thereby achieving the purpose of preventing the movable sleeve 6 and the clamping block 7 from continuing to move away from the fixed clamping block 2 along the guide channel when the external thread top 72 of the clamping block 7 is threadedly engaged with the internal thread 5 of the positioning sleeve 11;

[0039] In this embodiment, the specific connection structure between the cap 15 and the movable sleeve 6 includes: a sleeve 152 is fixedly provided on one end surface of the cap 15, the sleeve 152 and the cap 15 are integrally formed, the cap 15 is sleeved on the outside of the tube end of the operating portion 61 of the movable sleeve 6 through the sleeve 152, a second radial locking threaded hole 153 is provided on the wall of the sleeve 152, and radially passes through the wall of the sleeve 152. A second set screw 154 is threadedly connected to the second radial locking threaded hole 153. The second set screw 154 is tightly pressed against the side wall of the movable sleeve 6 to connect and fix the sleeve 152 and the movable sleeve 6 together, thereby fixing the cap 15 to the movable sleeve 6;

[0040] In this embodiment, the specific connection structure between the movable clamping block 4 and the movable sleeve 6 includes: a connecting bolt 18, a plug 19 is fixed to the pipe end of the movable sleeve 6 near the movable clamping block 4, in this embodiment, the plug 19 is connected to the movable sleeve 6 by a threaded connection, which facilitates the disassembly and assembly of the plug; an internal threaded hole 191 is provided in the center of the plug 19, and the screw of the connecting bolt 18 can be threadedly connected to the internal threaded hole 191 of the plug 19, and a second stepped through hole axially penetrating the movable clamping block 4 is provided in the center of the movable clamping block 4, the small-diameter section 201 of the second stepped through hole is close to the movable sleeve 6, and the diameter of the small-diameter section 201 of the second stepped through hole is larger than the screw diameter of the connecting bolt 18 and smaller than the diameter of the connecting bolt 18 The head diameter, the large diameter section 202 of the second stepped through hole is far away from the movable sleeve 6, and the diameter of the large diameter section 202 of the second stepped through hole is larger than the head diameter of the connecting bolt 18. The screw of the connecting bolt 18 passes through the second stepped through hole of the movable clamping block and is threadedly connected to the internal threaded hole 191 of the pipe end plug 19 of the movable sleeve 6, thereby connecting the movable clamping block 4 to the movable sleeve 6; in this way, when the connecting bolt 18 passes through the movable clamping block 4 through the large diameter section 202 and the small diameter section 201 of the second stepped through hole in turn and is threadedly connected to the plug 19 of the movable sleeve 6, on the one hand, since the diameter of the large diameter section 202 of the second stepped through hole is larger than the head diameter of the connecting bolt 18, the head of the connecting bolt 18 will be hidden. The large-diameter section 202 of the second stepped through hole makes it possible for the connecting bolt 18 to not extend the movable clamping block 4 in the direction toward the fixed clamping block 2, so that the connecting bolt 18 will not hinder the movable clamping block 4 from clamping the equipment bracket with the fixed clamping block 2. On the other hand, after the connecting bolt 18 is connected to the plug 19, the connecting bolt 18, the plug 19 and the movable sleeve 6 are a whole. At this time, since the diameter of the small-diameter section 201 of the second stepped through hole of the movable clamping block 4 is larger than the screw diameter of the connecting bolt 18 and smaller than the head diameter of the connecting bolt 18, that is, the screw of the connecting bolt 18 is movably inserted into the second stepped through hole of the movable clamping block 4, so that the movable sleeve 6 can rotate around its own axis relative to the movable clamping block 4, so that when the movable sleeve When the tube 6 rotates and moves axially along the guide channel to approach the fixed clamping block 2, the movable clamping block 4 will only move axially along the guide channel with the movable sleeve 6 to approach the fixed clamping block 2, and will not rotate with the movable sleeve 6, ensuring that the movable clamping block 4 can always maintain a stable posture of cooperating with the fixed clamping block 2 and stably clamping on the equipment bracket during the process of approaching the fixed clamping block 2; and when the movable sleeve 6 moves in the direction of approaching the fixed clamping block 2, the movable sleeve 6 can push the movable clamping block 4 to approach the fixed clamping block 2 through the plug 19, and when the movable sleeve 6 moves in the direction of moving away from the fixed clamping block 2, the movable sleeve 6 drives the movable clamping block 4 away from the fixed clamping block 2 through the head of the connecting bolt 18 against the step surface of the second stepped through hole of the movable clamping block 4;

[0041] In this embodiment, a guide positioning groove 21 is axially provided at the bottom of the movable clamping block 4, and an axial guide strip 22 is provided on the base body 1, so that the movable clamping block 4 moves closer to or away from the fixed clamping block 2 along the axial guide strip 22 through the guide positioning groove 21; in actual application, a first transverse clamping notch 211 is provided on the side wall of the fixed clamping block 2 facing the movable clamping block 4, and a second transverse clamping notch 411 is provided on the side wall of the movable clamping block 4 facing the fixed clamping block 2. The movable clamping block 4 and the fixed clamping block 4 cooperate with the first transverse clamping notch 211 and the second transverse clamping notch 411, so that they can be clamped to the equipment bracket more stably and firmly; and because the movable clamping block 4 moves closer to or away from the fixed clamping block 2 along the axial guide strip 22 through the guide positioning groove 21, the second transverse clamping notch 411 of the movable clamping block 4 can always maintain a corresponding posture that can cooperate with the first transverse clamping notch 211 of the fixed clamping block 2 to clamp the equipment bracket, thereby further improving the stability in use;

[0042] In practical applications, when the external thread profile of the external thread top 72 of the clamping block 7 and the internal thread profile of the positioning sleeve 11 are right-angled trapezoids that can form a "claw-like" structure,

[0043] The operation process of clamping the clamping device to the equipment bracket is as follows: first align the fixed clamping block 2, the movable clamping block 4 of the clamping device with the C-shaped notch formed by the base body 1 and buckle them on the mounting rod of the equipment bracket, then directly push the movable sleeve 6 to move in the direction close to the fixed clamping block 2. After the movable sleeve 6 is subjected to the external force to move close to the fixed clamping block 2, the outer thread of the clamping block 7 is matched with the inner thread 5 of the positioning sleeve 11 by the outer thread top 72 of the clamping block 7. The movable sleeve 6 is continuously withdrawn and continuously engaged with the next section of the internal thread, thereby causing the movable sleeve 6 to move rapidly along the axial direction of the guide channel of the base body 1 toward the fixed clamping block 2, and simultaneously driving the movable clamping block 4 to quickly approach the fixed clamping block 2 until the second clamping notch 411 of the movable clamping block 4 contacts the mounting rod of the equipment bracket. The external force applied to the movable sleeve 6 is then removed, and the clamping block 7 is then rotated around the pin shaft 8 again under the elastic force of the torsion spring 9 until the external thread top 72 of the locking portion 71 is threadedly engaged with the internal thread 5 of the guide channel;

[0044] Then, the movable sleeve 6 is rotated so that the movable sleeve 6 is threadedly engaged with the internal thread 5 of the guide channel through the external thread top 72 of the clamping block and moves along the guide channel toward the fixed clamping block 2, thereby simultaneously driving the movable clamping block 4 toward the fixed clamping block 2, so that the movable clamping block 4 and the fixed clamping block 2 are clamped relative to each other to clamp the mounting rod of the equipment bracket.

[0045] The operation process of loosening the equipment bracket by the clamping device is as follows: press the pressing part 142 of the unlocking rod 14 again, so that the unlocking rod 14 overcomes the elastic force of the spring 17 and moves along the movable sleeve 6 toward the fixed clamp block 2. In the process of the unlocking rod 14 moving toward the fixed clamp block 2, the unlocking rod 14 pushes the unlocking driving part 73 of the clamping block 7 again through the pushing part 141, so that the clamping block 7 rotates around the pin shaft 8 until the external thread top 72 of the clamping block locking part 71 disengages from the internal thread 5 of the guide channel again. At this time, the movable sleeve 6 can move quickly along the guide channel, and then keep pressing the unlocking rod 14 to make the external thread top 72 disengage from the internal thread 5 of the guide channel, pulling the movable sleeve 6 to move quickly along the axial direction of the guide channel of the base body 1 away from the fixed clamp block 2, and simultaneously driving the movable clamp block 4 to quickly move away from the fixed clamp block 2 to loosen the mounting rod of the equipment bracket.

[0046] In practical applications, when the external thread profile of the external thread top 72 of the clamping block 7 and the internal thread profile of the positioning sleeve 11 are ordinary cross-sectional shapes that cannot form a "claw-like" structure,

[0047] The operation process of clamping the clamping device to the equipment bracket is as follows: first align the fixed clamping block 2, the movable clamping block 4 of the clamping device with the C-shaped notch formed by the base body 1 and buckle them on the mounting rod of the equipment bracket, and then press the pressing part 142 of the unlocking lever 14 to make the unlocking lever 14 overcome the elastic force of the spring 17 and move along the movable sleeve 6 toward the fixed clamping block 2. In the process of the unlocking lever 14 moving toward the fixed clamping block 2, the unlocking lever 14 moves against the unlocking drive part 73 of the card block 7 through the pushing part 141, so that the card block 7 rotates around the pin shaft 8 until the external thread top 72 of the card block locking part 71 is disengaged from the internal thread 5 of the guide channel. At this time, the movable sleeve 6 can move quickly along the guide channel, and then keep pressing the unlocking lever 14 to make the external thread top 72 disengage from the internal thread 5 of the guide channel, and push the movable sleeve 6. The sleeve 6 moves rapidly along the axial direction of the guide channel of the seat body 1 toward the fixed clamping block 2, and simultaneously drives the movable clamping block 4 to quickly approach the fixed clamping block 2 until the second clamping notch 411 of the movable clamping block 4 contacts the mounting rod of the equipment bracket, and the external force applied to the unlocking lever 14 is removed. At this time, the unlocking lever 14 will move along the movable sleeve 6 away from the fixed clamping block 2 under the outward elastic force of the spring 17 to the initial position where it does not hinder the clamping block 7 from rotating around the pin shaft 8 until the external thread top 72 of the locking part is threadedly engaged with the internal thread 5 of the guide channel. That is, after the external force applied to the unlocking lever 14 is removed, the clamping block 7 will rotate around the pin shaft 8 again under the elastic force of the torsion spring 9 until the external thread top 72 of the locking part 71 is threadedly engaged with the internal thread 5 of the guide channel.

[0048] Then, the movable sleeve 6 is rotated so that the movable sleeve 6 is threadedly engaged with the internal thread 5 of the guide channel through the external thread top 72 of the clamping block and moves along the guide channel toward the fixed clamping block 2, thereby simultaneously driving the movable clamping block 4 toward the fixed clamping block 2, so that the movable clamping block 4 and the fixed clamping block 2 are clamped relative to each other to clamp the mounting rod of the equipment bracket.

[0049] The operation process of loosening the equipment bracket by the clamping device is as follows: press the pressing part 142 of the unlocking rod 14 again, so that the unlocking rod 14 overcomes the elastic force of the spring 17 and moves along the movable sleeve 6 toward the fixed clamp block 2. In the process of the unlocking rod 14 moving toward the fixed clamp block 2, the unlocking rod 14 pushes the unlocking driving part 73 of the clamping block 7 again through the pushing part 141, so that the clamping block 7 rotates around the pin shaft 8 until the external thread top 72 of the clamping block locking part 71 disengages from the internal thread 5 of the guide channel again. At this time, the movable sleeve 6 can move quickly along the guide channel, and then keep pressing the unlocking rod 14 to make the external thread top 72 disengage from the internal thread 5 of the guide channel, pulling the movable sleeve 6 to move quickly along the axial direction of the guide channel of the base body 1 away from the fixed clamp block 2, and simultaneously driving the movable clamp block 4 to quickly move away from the fixed clamp block 2 to loosen the mounting rod of the equipment bracket.

[0050] The advantages of the present invention are as follows: (1) in the process of clamping the clamping device to the equipment bracket, the movable clamping block can first be quickly moved close to the fixed clamping block, and then the movable clamping block can be moved by the threaded cooperation between the movable sleeve and the guide channel of the seat body, so that the movable clamping block and the fixed clamping block are in a relative clamping state to clamp the equipment bracket, thereby quickly clamping the equipment bracket; and when the clamping device needs to be removed from the equipment bracket, the movable clamping block can be quickly moved away from the fixed clamping block, thereby quickly loosening the equipment bracket, which is not only convenient to operate and use, but also improves the installation and disassembly efficiency; (2) in the process of the movable clamping block moving toward the fixed clamping block to clamp the equipment bracket, through the cooperation design of the movable clamping block guide positioning groove and the axial guide strip, and the connection structure design of the movable clamping block and the movable sleeve, it can be ensured that in the process of the movable clamping block moving close to the fixed clamping block to clamp the equipment bracket, the movable clamping block will not rotate relative to the fixed clamping block, so that the movable clamping block always maintains a stable posture that can cooperate with the fixed clamping block to clamp the equipment bracket, thereby improving the stability in use.

[0051] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or equivalent change made based on the technical essence of the present invention shall still fall within the scope of protection required by the present invention.

Claims

1. Clamping device, characterized in that: The cam is fixedly mounted on the base body with a relatively fixed clamping block and a mounting block, a movable clamping block that can move relative to the fixed clamping block is provided between the fixed clamping block and the mounting block, a guide channel facing the fixed clamping block and passing through the mounting block is provided in the mounting block, an internal thread is provided on the inner wall of the guide channel, a movable sleeve that can move along the guide channel is passed through the guide channel, one end of the movable sleeve is connected to the movable clamping block, and the other end of the movable sleeve extends out of the mounting block to form an operating part, an avoidance hole is provided on the outer wall of the movable sleeve, a clamping block is provided in the movable sleeve at the avoidance hole, the clamping block is hinged to the movable sleeve through a pin shaft, a locking part corresponding to the avoidance hole is provided at one end of the clamping block, and a locking part that can engage with the internal thread of the guide channel is provided at the outer end of the locking part The external thread top cooperates with the thread pattern, and an elastic member is provided between the clamping block and the movable sleeve. Under the elastic force of the elastic member, the clamping block will rotate around the pin shaft until the external thread top of the locking part extends out of the avoidance hole and the movable sleeve is threadedly engaged with the internal thread of the guide channel, so that the movable sleeve can move along the guide channel through the cooperation between the external thread top of the clamping block and the internal thread of the guide channel, so as to synchronously drive the movable clamping block to approach the fixed clamping block to clamp the equipment bracket, or synchronously drive the movable clamping block away from the fixed clamping block to loosen the equipment bracket. The movable sleeve is also provided with an unlocking mechanism that can make the external thread top of the locking part of the clamping block disengage from the internal thread of the guide channel, so that the movable sleeve can quickly move axially along the guide channel to synchronously drive the movable clamping block to quickly approach or move away from the fixed clamping block.

2. The clamping device according to claim 1, characterized in that: The tooth profile of the external thread of the external thread top of the clamping block is a right-angled trapezoid, the external thread of the external thread top has a right-angled waist away from the fixed clamping block and the oblique waist of the tooth is close to the fixed clamping block, and the tooth profile of the internal thread on the inner wall of the guide channel is a right-angled trapezoid that is compatible with the external thread of the external thread top of the clamping block.

3. The clamping device according to claim 1 or 2, characterized in that: The specific structure of the guide channel includes: a first stepped through hole is provided in the mounting block, the small-diameter section of the first stepped through hole is close to the fixed clamping block, the inner diameter of the small-diameter section of the first stepped through hole is adapted to the outer diameter of the movable sleeve, the large-diameter section of the first stepped through hole is away from the fixed clamping block, a positioning sleeve for the movable sleeve to pass through is inserted into the large-diameter section of the first stepped through hole, the positioning sleeve is fixedly installed on the mounting block by a locking mechanism, and an internal thread forming an internal thread section of the guide channel is provided on the inner wall of the positioning sleeve, and the small-diameter section of the first stepped through hole of the mounting block and the positioning sleeve together constitute the guide channel.

4. The clamping device according to claim 3, characterized in that: The structure of the locking mechanism includes: a first radial locking threaded hole is provided on the mounting block and radially penetrates to the large diameter section of the first stepped through hole, and a first set screw is threadedly connected in the first radial locking threaded hole to tighten and fix the positioning sleeve in the first stepped through hole of the mounting block.

5. The clamping device according to claim 1, characterized in that: The structure of the unlocking mechanism includes: an unlocking rod and a cap, the cap is installed on the tube end of the operating part of the moving sleeve, a chamber connected to the inner cavity of the moving sleeve is formed between the cap and the tube end of the operating part of the moving sleeve, a through hole axially penetrating the cap is provided on the cap, the unlocking rod is arranged in the moving sleeve between the card block and the cap, an unlocking drive part is provided on the card block, a pushing part facing the unlocking drive part of the card block is provided at the end of the unlocking rod close to the card block, the end of the unlocking rod away from the card block extends out of the through hole of the cap to form a pressing part, a circle of positioning bosses located in the chamber is provided on the outer wall of the unlocking rod, a spring is provided in the chamber, one end of the spring presses against the positioning boss of the unlocking rod, and the spring When the cam is in the unlocking state, the locking cam is engaged with the inner thread of the guide channel, and the locking cam is engaged with the outer thread of the locking cam, so that the locking cam can be moved to the unlocking state of the guide channel by the locking cam.

6. The clamping device according to claim 5, characterized in that: The specific connection structure between the cap and the movable sleeve includes: a sleeve is fixedly provided on one end surface of the cap, the cap is sleeved on the outside of the operating part of the movable sleeve through the sleeve, a second radial locking threaded hole is provided on the wall of the sleeve and radially passes through the wall of the sleeve, a second set screw is threadedly connected in the second radial locking threaded hole, and the second set screw is tightly pressed against the side wall of the movable sleeve to connect and fix the cap and the movable sleeve together.

7. The clamping device according to claim 1, characterized in that: The elastic member is a torsion spring arranged in the movable sleeve, one end of the torsion spring is connected to the locking portion of the clamping block, and the other end of the torsion spring is connected to the movable sleeve.

8. The clamping device according to claim 1, characterized in that: The specific connection structure of the movable clamping block and the movable sleeve includes: a connecting bolt, a plug is fixed at the end of the movable sleeve near the movable clamping block, and an internal threaded hole is provided in the center of the plug, and the screw of the connecting bolt can be threadedly connected to the internal threaded hole of the plug, and a second stepped through hole axially passing through the movable clamping block is provided in the center of the movable clamping block, the small diameter section of the second stepped through hole is close to the movable sleeve, the diameter of the small diameter section of the second stepped through hole is larger than the screw diameter of the connecting bolt and smaller than the head diameter of the connecting bolt, the large diameter section of the second stepped through hole is away from the movable sleeve, and the diameter of the large diameter section of the second stepped through hole is larger than the head diameter of the connecting bolt, and the screw of the connecting bolt passes through the second stepped through hole of the movable clamping block and is threadedly connected to the internal threaded hole of the plug at the end of the movable sleeve, thereby connecting the movable clamping block and the movable sleeve, and allowing the movable sleeve to rotate around its own axis relative to the movable clamping block.

9. The clamping device according to claim 8, characterized in that: A guide positioning groove is axially provided at the bottom of the movable clamping block, and an axial guide strip is provided on the seat body. The movable clamping block moves toward or away from the fixed clamping block along the axial guide strip through the guide positioning groove.

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